Article No. 1 click here for word document

 

Simon Marsh, Senior Lecturer - Beef Cattle Specialist, Harper Adams University College, Newport, Shropshire, TF10 8NB

 

Introduction:

 

Latest EBLEX costings reveal that Average and Top 1/3rd upland suckler producers recorded gross margins of £266 and £312 per cow respectively. However when fixed and non-cash costs are deducted this leaves a net margin of minus £299 and minus £176 per cow respectively. Suckled calf producers are therefore using their Single Farm Payment (SFP) to stay in business. This is not sustainable and beef producers must focus on improving technical efficiency if they are to avoid using their SFP to continue in beef production. 

 

The concept of the ‘Harper Adams Beef Focus Farm’ is to identify top 1% beef producers whose physical performance data would be independently monitored, reported and demonstrated. The beef industry needs to hear and see how farms recording top 1% performance is achieved and maintained which will be reported in the Farmers Weekly. 

 

Top 1% performance:

 

A ‘top 1%’ suckler beef producer would be operating ‘text book’ herd management. Their system would include factors such as; compact calving, utilisation of hybrid vigour within the breeding programme; use of top 1-10% Terminal Index herd sires with focus on calving ease, growth and muscle depth EBV’s; maximising use of home grown feeds and fodder with appropriate body condition score management; focus on grassland management; creep feeding etc… The farm needs to operate an ‘easy care’ suckler system within a low fixed cost structure. 

 

One such producer, Simon Frost at Youlgreave in Derbyshire, has been identified. Simon runs a herd of spring calving Limousin x Holstein sucklers. Cows are put to Charolais bulls with top 1-10% Terminal Indexes with focus on calving ease, 400 & 600 day growth, eye muscle area and negative fat depth EBV’s. The calves are sold at weaning to Alan and John Dore at Chesterfield and intensively finished. Reputedly, last year 56 bull calves recorded a carcase weight of 438kg at 447 days old, which indicates phenomenal performance! Cow and calf performance will be independently monitored during 2010 and 2011 by Simon Marsh.

 

Not everything of course runs smoothly and the ‘trials and tribulations’ of maintaining top 1% performance will be documented! The current issue Simon Frost is dealing with is the accuracy of EBV’s of young bulls!

 

Simon Frost:

 

Simon Frost’s farm (Hopping Farm) is at Youlgreave in the Derbyshire peak district. It is an upland farm which consists of some 420 acres, which includes 80 acres of rough hill ground, in an area with 34” of rain at an average of 800’ above sea level. Soil type is classified as reasonably light loam/clay over limestone. The land is noted for problems with copper deficiency due to the soil containing high levels of molybdenum locking up the available copper.

 

Simon keeps a herd of Limousin x Holstein cows which are put to high terminal index Charolais bulls. He also has a flock of 315 North Country mules put to Suffolk tups.

 

The suckled calves are sold direct off farm to Alan and John Dore at Glapwell near Chesterfield which also sees a reciprocal trading arrangement supplying straw to Simon Frost.

 

The following is a broad outline of Simon’s suckler herd and John and Alan Dore’s finishing unit. Subsequent articles will go into significant depth and detail. Simon Frost and the Dore’s frequently host visits by Harper Adams students. The visits prove so beneficial to the students and they see what can be achieved by top 1% performance. The best time to visit is just after calving when the students see new dropped calves. Many students comment that the calves don’t look very big or impressive, but the answer to that is that if you choose easy calving bulls then you are going to get modest sized calves that are born alive and not dead! When the students then see the bulls at the Dore’s that are 12 months older there is ‘sheer and utter silence and a dropping of jaws’ as they cannot believe how much the bulls have grown!       

 

Simon Frost’s suckler herd:

 

The herd consists of 125 spring calving Limousin x Holsteins which start calving on the 10th of February. The herd is put to high terminal index Charolais bulls and current herd sires include Balthayock Clifford (Terminal Index +45 – a top 1% bull) Hookcarr Arney (Terminal Index +39) and Littlebovey Altra (Terminal Index +33).  Total faith is placed on selecting bulls using EBV’s with focus on calving ease, birth weight, growth, muscle depth retail beef yield and negative fat scores. Hookcarr Arney has now been culled. Simon aims to buy the elusive ‘curve bender’ bulls. These are bulls with low birth weights and very high growth rates.   

 

Some 25 replacement bulling heifers are purchased each year from a local dairy farm. Unlike many other suckler producers the Holstein influence in the beef cow holds no fears for Simon since it gives plenty of milk for high calf growth rates and running a three way cross breeding programme maximises hybrid vigour and hence improves fertility which is a notoriously bad trait for the Holstein.

 

Cows stay indoors after calving aiming to turn out before the 23rd of April before lambing starts. Cows with bull calves at foot are run separately from cows with heifer calves. The stock bulls go into the herd on the 7th of May to the replacement heifers and 13th of May to the rest of the herd. The bulls are rotated every 3 weeks. Creep feeding starts with the bull and heifer calves in early and late August respectively feeding up to a maximum of 1.5kg per calf. The calves therefore go to the Dore’s ‘knowing what concentrates are’ but they are not fed ad lib. The key is to continue to grow frame, especially with the heifers, at this stage.

 

The calves are weaned in October and 2 weeks prior they are vaccinated with Rispoval4® (Pfizer Animal Health) to minimise respiratory disorders. They have their backs clipped out and treated with Closamectin® (Norbrook)  and sold to the Dore’s for intensive finishing. The cows are then put onto rough hill grazing for 4 days to dry off then put onto deferred grazing to gain body condition prior to housing.

 

The calf weaning weights this year were 391kg @ 212 days equating to a 200 day weight of 370kg and DLWG of 1.63kg. The heifers were 329kg @ 221 days equating to a 200 day weight of 302kg and DLWG of 1.31kg. When this is benchmarked against EBLEX recorded producers (see table below) this is some 43% and 36% higher than Average and Top 1/3rd producers respectively which is tremendous performance. Simon Frost’s motto is “Growth is King”.

 

Table 1. Calf weaning weights at Hopping Farm compared to EBLEX recorded LFA suckler herds.

 

 

EBLEX

S Frost

 

Average

Top third

Bulls

Heifers

Average

Wean age

246

239

212

221

217

Wean wt

294

298

391

329.5

360

DLWG

1.03

1.08

1.63

1.31

1.47

200 day wt

246

256

370

302

336

 

 

The cows are cubicle housed in the winter and feeding is based on restricted big bale silage plus straw to hold or manipulate cow condition so that the cows are ‘fit not fat’ at calving i.e. condition score 2.

 

With regard to cattle health, the cows are given 2 Cosecure boluses twice per year in spring and autumn. First and second calvers are vaccinated with Rotavac to prevent Rotavirus. High magnesium/copper molassed mineral buckets are fed free access throughout the year with average consumption being 55g/cow/day i.e. 20kg/cow/year.  

 

Last year the herd recorded 92% calves sold per 100 cows put to the bull which is higher than EBLEX recorded Average and Top 1/3rd producers with 89.5% and 90.5% respectively.

 

Alan & John Dore:

 

The Dore brothers run Home Farm at Glapwell near Chesterfield. The farm consists of some 1,200 acres of which 200 are down to grass with the remainder growing barley, wheat and oilseed rape. Soil type is medium loam to clay and rainfall is 23” on land at 750 feet above sea level.  

 

The Dore’s intensive beef finishing enterprise:

 

Some 600 cattle are finished each year which includes bulls, steers and heifers of continental breeding. Charolais and Limousins are favoured but the Dore’s have also finished Simmental and Bazadaise crosses. Stock are purchased either from market or privately. The majority of the 600 head are suckled calves purchased @ 350-400kg which includes those from Simon Frost.

 

All cattle are finished on good quality big bale silage supplemented with a 16% CP barley based ration containing Hi-pro Soya and Linseed fed at restricted levels initially to grow frame, especially to the heifers, and then increased to ad lib to put on finish.

 

The suckled calves are finished at up to 20 months old at weights ranging from 370-500kg carcase weights for bulls and steers and 290-320kg for heifers. As mentioned previously the last batch of Simon Frost’s bulls recorded a carcase weight of 438kg at 447 days old (14.6 months), which is exceptional performance. The Dore’s also buy 150 twelve week old Belgian Blue x Holstein bulls which are finished @ 360-380kg carcase weights.

 

The cattle are all sold dead weight mainly to Kepak but also to Dunbia and Woodheads.  

 

Maximising efficiency in suckled calf production:

 

The key area’s identified in maximising efficiency and hence profit in suckled calf production are as follows:

 

  1. Maximise economies of scale and focus on output
  2. Easiercare' systems with low labour requirements
  3. Maximise hybrid vigour and focus on breed improvement i.e. use Top 1-10% Beef Value/Terminal Index sires that have very high 400 and 600 day weights, muscle scores, negative fat depth and are easy calving i.e. 'curve benders'
  4. Use easy calving bulls identified by calving ease EBV's with high accuracy figures. Don't be afraid to buy 'ugly bulls' if their EBV figures are good. Too many buyers of bulls are obsessed with buying masculine pretty faced bulls with big back sides! We need breeding bulls with easy calving, growth, width and depth of body and 'an extra rib'. The highest priced part of the carcase is the loin so why are too many pedigree breeders obsessed with bulls with big back ends!
  5. Improve herd fertility and block calve. Data from Herdplus in Northern Ireland and a recent EBLEX survey shows the average calving interval is 399 days, calving rate was 88.3% (similar to EBLEX Business Pointers data) so therefore there are 80.8 calves produced per 100 cows in a calendar year. This is dreadful performance! The target is a minimum of 95 calves per 100 cows per 365 days.
  6. Correct cow condition scores especially at bulling. The target is a minimum of 2.5.
  7. Improve calf DLWG's and reduce slaughter age. The current target is now to wean a calf @ 50% of the cow weight and look at suckler cow efficiency i.e. target 50+kg calf weaned [200 day wt] per 100kg cow weight. Earlier slaughter reduces the carbon footprint of beef production.
  8. Focus on feed costs and quality and maximise utilisation of home grown forage. Reduce wintering and fixed costs by out-wintering however in certain parts of the country I accept that this is not possible which is the case with Simon Frost!
  9. High levels of health care to minimize cow and calf losses. Calves with a disease challenge will not thrive.
  10. Focus on marketing. Target either the commodity or niche beef market and produce beef as efficiently as possible. There are critics of bull beef production and Continental breeds so if Native breeds are reared on extensive systems they must obtain significant premiums in the market place. Producers must still focus on rearing beef cattle as efficiently as possible using.  

 

Cattle performance will be accurately monitored by Harper Adams. The information presented will be ‘fact and not fiction’ which sometimes can be the case with figures presented by certain breed societies and feed companies!

 

 

Charolais X Bulls

 

Charolais X Heifers


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Article No. 2 click here for word document

 

Choice of suckler cow breed & winter management  

 

This is the second of a series of 12 articles on Simon Frost’s suckler herd at Youlgreave in Derbyshire. Simon achieves top 1% performance with his upland herd of 125 Limousin x Holstein Friesian cows put to Charolais bulls which is the basis of the Farmers Weekly/Harper Adams Beef Focus Farm concept. The first article outlined the background to the project with an overview of Simon Frost’s farm and his management strategies. This article focuses on choice of suckler cow breed and winter management.

 

Choice of cow breed

 

This is always a debatable issue amongst suckled calf producers and a ‘case can be presented’ to support most breed types. Simon Frost’s choice of breed of cow is the Limousin cross Holstein-Friesian. The reason for this choice is the combination of conformation and light bone from the Limousin, with milk from the Holstein-Friesian. This then complements the choice of terminal sire which are top 1-10% Index easy calving Charolais bulls which deliver calves with frame, growth and muscle. This is a classic breed combination being ‘three-way cross’ using a terminal sire such as the Charolais which maximises hybrid vigour. Compared to pure breeding the three-way cross has a 23.3% performance advantage. Compared to a 2 breed rotational cross breeding programme the advantage is 7.8%. Simon has minimal concerns about the Holstein-Friesian influence in the cow. Last year Simon Frost’s bull calves recorded DLWG’s of 1.63kg per day from birth to weaning with only 90kg of creep feed which could not be achieved without milky cows, “you cannot get this DLWG on fresh air”! Last year the bull calves went on to reach carcase weights of 438kg at 447 days of age which is phenomenal performance.

 

Many suckler producers have moved away from Holstein breeding in their cows due to issues with fertility, longevity and conformation but Simon’s herd  replacements come from a dairy herd that is not ‘extreme Holstein’. Suckler producers who have moved to breeding their own replacements can find issues with cows lacking milk, increased cow size, reduced progeny sales having chosen a beef breed with maternal traits, and, the need to subsequently prevent father from serving his daughters! The current trend in the dairy industry to move away from extreme Holstein breeding to ‘easier care’ cows with longevity that can hold body condition is good news as far as the beef industry is concerned.                

 

The choice of the Limousin in the cow is supported by research work by Jenkins and Ferrell (1994) in North America at the noted Meat and Animal Research Centre in Nebraska where nine beef breeds were compared with low or high feed availabilities thus mimicking either hill or lowland environments. With low feed availability the native British breeds fared best closely followed by the Limousin whereas with high feed availability the continentals were more efficient when measured on the basis of weight of calf weaned by feed intake.  

 

Simons’ cows were weighed and condition scored following weaning. An efficiency measure and target suckler producers should be using is to achieve a 200 day calf weight that is 50% of the cow live weight. If you are below this target it indicates that you either have big cows that are costly to maintain or calf growth rates need attention. When compared with an SAC Monitor Farm with Limousin cross cows Simon Frost’s herd show a marked improvement in performance and efficiency. I am not aware of the management standards on the SAC Monitor Farm but I suspect it is a well run unit.      

 

Table 1. Cow live weight and efficiency with Limousin cross cows.

 

 

SAC Monitor Farm

S Frost

Cow wt (kg)

667

595

Calf 200 day wt

291

336

Efficiency (% of cow weight)

43.6

56.5

 

What is clear is that Simon Frost’s cows are of small-medium size therefore with low maintenance costs with the ability to milk well. Herd replacement rate is only 17.6% compared to the UK average of 21.7% so longevity is not an issue. Some beef specialists suggest that cows must have good longevity and virtually ‘live forever’. I believe that with the current cull cow price a culling rate of around 20% is not a concern since a young fit cull cow can cover the cost of a replacement bulling heifer.   

 

Confirmation that cow size in the suckler herd is increasing with the move to 100% beef breeds in the cow was presented by the SAC (Hyslop, 2006) with their Limousin cross Angus herd which were recorded at 685kg. Always remember that big cows take a lot to maintain!

 

Winter management

 

Simon Frost’s cows are cubicle housed in the winter and feeding is based on restricted big bale silage plus straw to hold or manipulate cow condition so that the cows are ‘fit not fat’ at calving i.e. condition score 2-2.5. The housing system at Hopping Farm is unique and novel in that they are housed in a barn that was converted to cubicles that are not on raised beds. Cows do however have mats to lie on. Five years ago the herd was housed in the same yard bedded with straw and the move to cubicle housing has saved over 100 tonnes of straw per year. Should Simon Frost ever wish to convert the yard back then it would be very simple and low cost with not having to take out cubicle beds.  

 

Dry spring calving suckler cows on most commercial units are fed silage and this is no different at Hopping Farm. The target condition score for spring calving sucklers at weaning in the autumn is stated by EBLEX as 3.5 i.e. very good condition, and then dropping condition score to 2.5 at calving. If this strategy was adopted by Simon Frost it would result in increased winter feed costs of over £45 per cow. The reason is simple in that he would have to feed more purchased straw and an expensive protein concentrate and less home grown big bale silage if his cows were at score 3.5 at housing. By holding his cows at condition score 2-2.5 with a weight gain of 0.3kg/day due to the growth of the foetus over the winter, Simon can feed just silage and straw to provide then with 89MJ/day of energy.

 

Simon Frost’s cows had an average condition score of 2.28 at weaning and the objective will be to hold this condition during the winter with restricted big bale silage and ad lib straw to calve down at score 2 to help minimise calving difficulties. The silage is analysed and could be described as being of medium-good quality although the protein content is low but typical for big bale silage from an upland farm which doesn’t use a lot of nitrogen fertiliser.  

 

Table 2. Silage analysis from Hopping Farm.

 

Dry Matter

45.3%

Crude Protein

10.9%

ME

10.5 MJ/kg DM

 

Feeding a restricted quantity of silage means that all cows must be able to access the feed. The method of feeding is based on using 2 feed trailers and 4 ring feeders that allow all cows to feed. Each feeder is layered with good quality wheat straw topped with grass silage which takes just under 24 hours to be eaten. This ensures that the cow’s rumens’ are full. Feeding silage with straw is an excellent combination compared to straw and concentrates. On the latter ration the rumen microbes have to adjust to degrading both starch and fibre. With just a forage based ration the microbial activity is enhanced and the cows extract more from the straw than the theoretical value. High magnesium/copper/selenium molassed mineral buckets are fed free access throughout the year with average consumption being 55g/cow/day i.e. 20kg/cow/year.  

 

Table 3. Suckler cow ration at Hopping Farm to hold body condition but provide for a live weight gain of 0.3kg/d.

 

Feeds (cow/day)

 

Big Bale Silage

13.1kg

Straw (ad lib)

5.0kg

Minerals

55g

Dry Matter Intake

10.3kg

ME Supplied (MJ)

89

Crude protein (% in DM)

8.4

Cost/cow/day

49.8p

 

Any cows that are at condition score 3 about 6 weeks before calving are separated from the herd and fed on ad lib straw and minerals in order to thin down to score 2.5 and hence minimise calving difficulties. This typically only involves 3-5 cows.

 

Consideration has been given to buying a feeder wagon however this could not be justified. The current system is simple, low cost and flexible. Why spend money on machinery that ‘rusts and burns fuel’, invest it in livestock instead it will give a better return!

 

If there is one strategy that Simon Frost could implement would be to split the herd into mature cows in good condition with another group containing heifers and lean cows.  

  

Table 4. Average and range of cow weights and condition scores at Hopping Farm.

 

 

Cows

1st calved Heifers

Average cow wt (kg)

607

527

Range in wt (kg)

504-757

501-563

Condition Score

2.31

2.11

Range in CS

1.75-3.25

1.75-2.25

 

As with any population there is a range in weights and condition scores but this follows the normal standard distribution curve. Despite what appears a wide range of cow condition scores the vast majority of the cows are between score 2 and 2.5. The difference in weight between the cows and first calved heifer is some 80kg so separate grouping would be recommended.  

 

Calving ease is influenced by both the cow and the bull. The cow's
contribution to positive calving ease is achieved by managing condition
score, the target being 2-2.5 at calving. The bull's contribution to calving ease is achieved by the selection of bulls with a positive EBV for calving ease,
short gestation length and low birth weight. It is important that these EBV have a high accuracy (>50%). Suckler producers who breed heifer replacements have an additional tool in the form of maternal trait EBVs.

 

References

Jenkins, T.G and Ferrell, C.L. 1994. Productivity through weaning of nine breeds of cattle under varying feed availabilities: 1. Initial evaluation. Journal of Animal Science, 72: 2787-2797

 

Hyslop, J.J. 2006 Relationship between live weight and condition score in Aberdeen Angus crossbred and Limousin crossbred commercial suckler cows. Proceedings of the British Society of Animal Science. Paper 169.

 

 
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Article No. 3 click here for word document

 

Choice of breed of bull & EBVs  

 

This is the third of a series of 12 articles on Simon Frost’s suckler herd at Youlgreave in Derbyshire. Simon achieves top 1% performance with his upland herd of 125 Limousin x Holstein Friesian cows put to Charolais bulls which is the basis of the Farmers Weekly/Harper Adams Beef Focus Farm concept. The first article outlined the background to the project with an overview of Simon Frost’s farm and his management strategies. The second article covered choice of cow breed and cow winter management. This article focuses on choice of terminal sire and use of EBVs.

 

Choice of terminal sire breed

 

Choice of terminal sire is often a hotly debated topic amongst suckled calf producers. Most have their preferences and can justify their allegiance to their chosen breed.  

 

The last time beef breeds were independently evaluated in the UK was back in the 1970’s by the MLC! The most recent breed evaluation work was done in the 1990’s in Ireland at The Grange Research Centre. Although it was with dairy-bred crosses the data is still very relevant. The results are what we would expect and show that the Continentals are faster growing, leaner and show better conformation than the Native breeds which are easier calving.

 

Table 1. Relative performance of Beef x Friesian steers (Friesian = 100).    

 

 

Gestation Length

% Diff Calvings

Carcase wt./age

Conformation

Fat Score

Muscle wt./age

Friesian

282

1.5

100

100

100

100

Angus

281

2.2

98

127

120

94

Hereford

283

2.1

104

131

124

100

Limousin

286

4.2

104

140

101

110

Simmental

285

4.4

109

134

101

114

B Blue

283

4.0

109

140

91

119

Charolais

285

5.2

111

144

95

117

(Source: Grange Beef Research Centre 2001)

 

Over the past 20 years all of the breeds have made significant improvements in growth rate and Signet and Breedplan data shows that some breeds have increased their 400 day weights by over 70kg. The Angus and Hereford have changed dramatically with the infusion of North American genetics but the Simmental with the Angus have made the most breed improvement of all the breeds. Since high growth rates are correlated to increased calf birth weights this subsequently creates issues with calving difficulties. Have we reached a point where our beef cattle are ‘big enough’ and breed societies now need to focus on other traits? The recent increase in the price of cereals and therefore ability to finish of forage is also another consideration for some breeds.

 

In a recent survey of English suckler herds by EBLEX it was found that the Limousin was the predominant sire with 33% of bulls followed by the Charolais with 17%. The Angus, Blonde and British Blue were all at 11% with Simmentals at 7%. If the survey had included Scotland then the use of Charolais and Simmental would have been higher since these two breeds predominate north of the border.   

 

The Charolais was once the predominant terminal sire breed in the suckler herd. Calving difficulties with the Charolais is one of the main reasons why a number of commercial suckler producers in the past two decades have moved away from the Charolais to the easier calving Limousin. However there are now anecdotal comments that calving ease is becoming a problem with some Limousin bulls which is logical since the breed has significantly increased its 400 day weights over the last 20 years.       

 

The Charolais is the choice of Simon Frost since this breed is recognised for having the highest growth rates of any of the terminal sire breeds. The growth, frame and stature of the Charolais complements the ‘fine-boned’ Limousin x Holstein which is the choice of suckler cow at Hopping Farm.

 

The data in table 1 shows that on average that the Charolais has the highest incidence of calving difficulties but it MUST be stated that there is more variation within a breed than between all of the major beef breeds and that there are easy calving Charolais bulls as well as very hard calving Charolais bulls. Simon Frost spends a considerable amount of time studying the bull sale catalogues to search for ‘curve benders’ – easy calving bulls identified by EBVs but with very high growth rates and muscle scores.        

 

Using EBVs

 

Ease of calving is an absolutely essential priority with today’s suckler herds which need to move to easicare systems requiring less labour thus following the trends led by the sheep industry. 

 

In a recent study by the SAC three Charolais bulls with different calving ease EBVs were compared. Calving score is based on a scale from 1 (unassisted) to 5 (caesarian).

 

Table 2. Relationship between calving ease EBV and % calves born.

 

Calving Ease EBV of sire

Calving Score (1-5)

% Calves born alive

-9.4

1.9

92

-6.3

1.4

94

+0.8

1.0

100

(Source SAC, 2004)

 

The most appropriate statistic is that the bull with the positive calving ease score resulted in 100% calves born alive. Based on a calf 200 day weight of 280kg for the easy calving bull the calves from the hard calving sire would need to be on average 24.3kg heavier to produce the same total calf weaning weight. This simple calculation also ignores the potential issues of reduced fertility with cows having suffered increased calving difficulties.     

 

The beef industry must move forward and embrace the science of EBVs to progress breed improvement. Breed improvement is a ‘long term issue’ but with high feed prices it is even more imperative that we feed ‘well bred’ cattle sired by bulls with high Indexes. In a recent trial at Harper Adams dairy-bred calves from Limousin bulls with either a Top 1% or Bottom 1% Beef Value were intensively cereal finished. The performance of the bulls from the Top 1% Index sire smashed the EBLEX target for a slaughter weight of 570kg at 14 months old for Continental cross dairy-bred bull.

 

Table 3. Performance of progeny from Top 1% and Bottom 1% Bulls.

 

 

Top 1% Bull

Bottom 1% Bull

Calving ease score (1-5)

1.54

1.46

Slaughter wt (kg)

584.5

574.1

Age at slaughter (months)

13.3

14.1

DLWG (kg)

1.32

1.23

Carcase wt (kg)

330.1

312.1

Kill out (%)

56.4

54.4

Carcase daily gain (kg)

0.76

0.67

Conformation score (1-7)

3.92 (R)

3.54 (R/O+)

 (Source Harper Adams 2008)

 

The bull calves from the Top 1% sire finished 25.1 days earlier with carcase weights some 18kg heavier. Overall performance on every measured trait was statistically different apart from calving ease which was similar for both bulls. The earlier finishing and increased slaughter weight and improved carcase grade of the calves from the Top 1% bull with today’s beef and cereal prices is worth a phenomenal £116.24 per head. If each bull sires 200 calves then you could in theory afford to pay £23,248 more for the Top 1% Index bull!

 

In the Harper Adams study the calves were from Holstein cows and it is interesting to note that the calves from the Top 1% bull recorded 0.76kg carcase gain from birth. Daily carcase gain and not daily live weight gain is what we should be talking about to favour breeds with high kill out percentages. Simon Frost’s bull calves last year recorded a daily carcase gain from birth to slaughter of 0.94kg! 

 

The beef industry must move forward and adopt the science of EBVs. Numerous studies have shown that they work and the financial rewards are significant. The industry change from selecting bulls with fancy masculine heads. What value is a head to the meat trade – NONE!

 

The fascination for big back ends should also end. The highest value of the carcase is in the loin and breeders MUST focus on this area and have bulls with stretch and depth of loin. The potential move to video image analysis (VIA) in some abattoirs which can predict meat yield and hence pay premiums is a step in the right direction since this should start to reward breeds with most beef in the high value parts of the carcase.     

 

A bulls EBV’s may change slightly over time but that is due to more performance data becoming available on that bull and hence improving accuracy. The pedigree breeders must be honest about recording calving ease and with time more data on an individual bull and hence increasing accuracy of Calving Ease EBV will catch out breeders who falsify their data. The minimum requirement is 50% accuracy for the Calving Ease EBV when selecting a bull unless he is a young bull from a breeder you can trust.   

 

Have faith in EBVs and buy bulls with top figures! Many farmers who dismiss EBVs are usually pedigree breeders with bulls that have poor figures or have bought bulls very low accuracy figures. Simon Frost has faith in EBVs and achieves top 1% performance!

 

Simon Frost’s guideline to EBVs

 

Simon’s recent bull purchases include Balthayock Clifford (Terminal Index +45) and Balthayock Elector (TI +44). Both are top 1% bulls and Elector was bought this February at Stirling.

 

 

Balthayock Elector. Purchased at Stirling, February 2011

 

Simon Frost’s parameters for the various EBVs that he looks for when buying a Charolais bull are as follows:

 

Calving ease direct: Must be a positive figure - the higher the better.

 

Gestation length: Ideally negative but up to +1 is acceptable

 

Birth weight: As low as possible. Below +2 is acceptable.

 

200, 400 and 600 day weights: The 400 day weight EBV should be a minimum of at least 20 kg above breed average. A 600 day weight EBV above breed average is less critical since the calves are being finished at about 450 days of age. 

 

Eye muscle area: Ideally this should be over 6 and will influence carcase grades targeting U+

 

Fat depth: This should be negative so that the bulls will grow without laying down fat which is inefficient

 

Retail Beef Yield: Over 2 and as high as possible and 

 

The EBVs of Balthayock Elector purchased by Simon Frost at Stirling in February 2011 are shown in table 4.

 

Table 4. Balthayock Electors EBVs.

 

 

Calving Ease Direct (%)

Gestation Length (days)

Birth Wt (kg)

200 day wt (kg)

400 day wt (kg)

600 day wt (kg)

Eye Muscle Area (sq cm)

Fat Depth (mm)

Retail Beef Yield (%)

Balthayock Elector EBVs

+2.6

-0.7

+2.4

+35

+61

+67

+6.1

-0.8

+2.6

Charolais Breed Average

-0.2

+1.2

+2.5

+24

+38

+43

+2.9

-0.3

+0.9

 

Selecting bulls with the above EBVs results in progeny with the potential for very high growth rates with U grade carcasses. Last year 56 bull calves recorded a carcase weight of 438kg at 447 days (14.6 months) old which is exceptional performance and following articles will report on the progress of the 2010 calf crop which are being intensively finished by Alan Dore at Galpwell near Chesterfield. Feed intakes are being monitored to measure the efficiency of growth of both the bull and heifer calves.   

 
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Article No. 4 click here for word document

 

Pre-calving management and calf finishing update  

 

Introduction:

 

This is the fourth of a series of 12 articles on Simon Frost’s suckler herd at Youlgreave in the Peak District. Simon achieves top 1% performance with his upland herd of 125 Limousin x Holstein-Friesian cows put to Charolais bulls which is the basis of the Farmers Weekly/Harper Adams Beef Focus Farm concept. The Charolais bulls have top 1-5% Terminal Indexes with focus on calving ease, growth and muscle EBV’s. The calves are sold at weaning to Alan and John Dore at Chesterfield and intensively finished. Last year the bull calves recorded a carcase weight of 438kg at 447 days old, which is exceptional performance. This article focuses on pre-calving management and outlines progress of the 2010 calf crop being finished by the Dore’s.

 

Pre-calving management:

 

The two most critical periods in the annual production cycle for a suckler herd are bulling and pre-calving. Get them both right and you should exceed the target of a 95% calf crop with a 365 day calving interval for a herd with a compact calving period of 9 weeks.

 

For a spring calving cow the body condition score at calving should be 2 i.e. cows are in lean condition. Cows above score 2.5 have a significantly higher incidence of dystocia especially when carrying continental bred calves. With cows below condition score 1.75 there can be issues with quality of colostrum and strength at calving. 

 

Simon Frost’s Limousin x Holstein-Friesian cows were weighed and condition scored at weaning and pre-calving having been wintered on a ration of restricted silage and straw (see second article in Famers Weekly 4th March 2011 for further details).           

 

Table 1. Weaning and pre-calving cow weights and condition scores.

 

Weaning

Pre-calving

Cow wt (kg)

595

604

Condition Score

2.28

2.08

 

The pre-calving weight and condition score was recorded at 604kg and 2.08 respectively. The range in cow condition was relatively small with 85.4% of the herd at score 2-2.25. Only 8.3% and 6.3% of the herd were either below or above the target condition score. Sometimes it is advocated to increase feed levels prior to calving to boost colostrum production but this is not carried out by Simon Frost because this would result in too much colostrum and milk for the new born calf to cope with bearing in mind that the cows are half Holstein-Friesian and therefore very milky. 

 

Calving starts on the 10th of February with 25 replacement heifers with the main herd calving down three weeks later. This is ideal since it gives the heifers extra time to grow some frame and rise in condition before going to the Charolais bulls on the 1st of May with the rest of the herd. The heifers are also put in-calf to a Charolais bull. This is something few suckler producers would ever contemplate and many would use an alternative easy calving breed. The bull currently used on the heifers, Littlebovey Altra, has a Top 5% Terminal Index with a Calving Ease Direct EBV of +2.3. He has proven to be very easy calving thus confirming his Calving Ease EBV. In fact Simon Frost has to intervene less at calving with his heifers compared to the cows! 

 

During the bulling period records are kept of when cows are served and by which bull. Simon therefore can predict when each cow will calve and in conjunction with the visual signs of starting to calve is moved into one of four straw bedded calving boxes. Assistance is only given if deemed necessary. The average time from birth for the calf to take its first vital intake of colostrum is just 30 minutes. Simon supervises this first intake but he will stomach tube a calf where suckling can prove difficult. There are many factors that can cause calf mortality but one of the major ones is an inadequate intake of good quality colostrum. The target is 2 litres within 6 hours of birth and this quantity can be consumed with 20-25 minutes of effective suckling.     

 

Once mothered up the cow and calf is moved into a straw yard and she is turned out a soon as weather and ground conditions allow which relieves pressure on the building and reduces straw use.

 

Cow and calf health

 

First and second calved heifers are vaccinated against Rotavirus 3 weeks prior to calving. Third plus calvers are not vaccinated since they should have developed immunity which can be passed onto the calf via colostrum.

 

Cleanliness in the calving boxes is vital and they are pressure washed and disinfected every three weeks which minimises disease problems which can often occur with calves born late in the season. Once born the calves navel is treated on both sides and then again at 24 hours.

 

Ensuring the cows have an adequate mineral status, especially copper and selenium, has also been identified as a crucial factor for success. Simon Frost’s farm is in a limestone area and high soil molybdenum cause serious problems with copper lock-up. As well as receiving 2 Cosecure® (Telsol Ltd) boluses twice per year in spring and autumn, which provide copper, selenium and cobalt, the cows have year round access to molassed mineral buckets with a high copper specification including chelated copper. Average intake is 55g/cow/day. If the cows don’t receive this level of copper supplementation the coats soon start to have a red tinge. Having an adequate selenium status has eliminated retained cleansings.    

 

Pre-calving summary:

 

  • Target condition score 2 at calving
  • Use easy calving bulls with positive Calving Ease Direct EBVs
  • Calf standing and sucking colostrum within 30 minutes
  • Regularly clean and disinfect calving boxes
  • Treat navels at birth and 24 hours
  • Adequate trace element status

 

Progress of the 2010 calf crop being finished by Alan and John Dore:

 

Simon Frost’s calves are sold in October to Alan and John Dore at Home Farm in Glapwell near Chesterfield. The farm consists of 1,200 acres of which 200 is down to grass with the remainder growing barley, wheat and oilseed rape. The Dore’s finish some 600 continental bulls, steers and heifers each year. The majority are suckled calves purchased at 350-400kg which includes those from Simon Frost.

 

Simon Frost starts creep feeding the Charolais bull and heifer calves in early and late August respectively feeding up to a maximum of 1.5kg per calf prior to weaning in October. The calves therefore go to the Dore’s ‘knowing what concentrates are’ but they are not fed ad lib. The creep feed (Massey Feeds 16% CP X-Tender Nuts) are high in energy from digestible fibre (NDF) to encourage frame and lean carcase growth. The key is to continue to grow frame, especially with the heifers, at this stage. The bull calf weaning weights last year were 391kg at 212 days old equating to a DLWG of 1.63kg. The heifers were 329kg at 221 days equating to DLWG of 1.31kg.

 

Two weeks prior to weaning the calves are vaccinated with Rispoval4® (Pfizer Animal Health) to minimise respiratory disorders. They have their backs clipped out and treated with Closamectin® (Norbrook). The bulls are finished on ad lib good quality big bale silage supplemented with 16% protein barley based ration containing Hi-pro Soya and Linseed Flakes. This is a unique approach since many nutritionists would advocate a ration containing only 14% protein using straights such as rapeseed meal and not the ‘luxury proteins’ such as Hi-pro or linseed. The Dore’s believe that it is essential that suckled bulls from Simon Frost with the potential to grow consistently in excess of 1.5kg per day to carcase weights of 438kg by 14.6 months old need highly digestible by-pass protein sources to maximise lean tissue deposition. The inclusion of some oats takes ‘some heat out of the ration’ being higher in fibre and lower in starch compared to barley.    

 

Table 2. The Dore’s finishing ration.

 

Feeds

%

Rolled Barley

63

Rolled Oats

15.5

Hi-Pro Soya Bean Meal

10

Linseed Flakes

10

Intensive Beef Mineral

1.5

Analysis

Values as fed (except ME)

Crude protein

16.0

Starch

35.7

NDF

20.0

ME

13 (MJ/kg DM)

 

The grass silage offered to the calves has an analysis that many dairy farmers would strive to achieve with a dry matter content of 50.8%, protein of 13.6% and ME of 11.6 MJ/kg DM)! Intakes average approximately 4kg per bull per day. Problems with acidosis are non existent.

 

On arrival the bulls get 4.5kg of barley mix which is fed twice per day and after a fortnight gradually increased to 6.8kg and then tweaked up to 9kg per head per day. The finishing ration is fed to appetite twice per day in troughs which means that the bulls always have an edge to their appetite which is different compared to offering feed in a hopper.  The heifers are fed lower levels of barley to grow frame and are kept on 3.1kg of barley mix which is gradually increased 6 weeks prior to slaughter targeting carcase weights 290-320kg.  

 

The first bulls are about to be slaughtered and full details on bull and heifer slaughter performance and FCRs will be given in a subsequent article. 

 

Clarification of cow winter feed costs

 

A number of readers have commented in the second Beef Focus Farm article (Farmers Weekly - 4 March 2011) on how low Simon Frost’s cow wintering costs are at 49.8p/cow/day. This was based on 13.1kg silage @ £11.10/t (£24.49/t DM), 5kg straw purchased from the Dore’s @ £65/t and 55g of high spec mineral bucket @ £500/t. The silage costs appear very low but this is because they are only the variable costs of making big bale silage at Hopping Farm which include fertilizer, sprays, baling, plastic and wrapping costs. If the fixed costs of making silage at Hopping Farm are included then it is costed at £37.08/t (£81.86/t DM for 45.3% DM silage) thus increasing the cow winter feed costs to 83.8p per day.

 

 

 
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Article No. 5 click here for word document

 

 

Post-calving/pre-bulling Management and Calf Finishing Update  

 

Introduction:

 

This is the fifth of a series of 12 articles on Simon Frost’s suckler herd at Youlgreave in the Peak District. Simon achieves top 1% performance with his upland herd of 125 Limousin x Holstein-Friesian cows put to Charolais bulls which is the basis of the Farmers Weekly/Harper Adams Beef Focus Farm concept. The Charolais bulls have top 1-5% Terminal Indexes with focus on calving ease, growth and muscle EBV’s. The calves are sold at weaning to Alan and John Dore at Chesterfield and intensively finished. Last year the bull calves recorded a carcase weight of 438kg at 447 days old, which is exceptional performance.

 

This article focuses on post-calving and pre-bulling management and outlines progress of the 2010 calf crop being finished by the Dore’s and will report on what we believe to be ‘world record performance’ for daily carcase gain for a commercially finished cross-bred bull calf!.

 

Interim bull finishing results

 

The ‘precursors for profit’ with suckled calf production are ease of calving and maximizing daily carcase gain. Easy calving is facilitated by top 1% suckler producers Simon Frost by using Charolais bulls with positive Calving Ease Direct EBVs and making sure the Limousin x Holstein-Friesian cows are in lean condition (score 2) at calving. High daily carcase gain is facilitated by using bulls with high EBVs for growth and muscle alongside focus on herd health and nutrition throughout the production cycle. The Charolais bulls used by Simon are termed as ‘curve benders’ since they have top 1-5% Terminal Indexes and are easy calving bulls as well as having very high growth rates. The calves are sold at weaning to Alan and John Dore at Glapwell near Chesterfield and intensively finished. The specific management of the calves by the Dore’s was outlined in the previous article (Farmers Weekly 6 May 201) and to date just over half of the bulls have been slaughtered.

 

The 30 Charolais bulls finished so far have achieved a mean carcase weight of 417.4kg at 394 days old which is just less than 13 months old (see table 1). This calculates to a carcase gain from birth to slaughter of 1.00kg per day. The bulls killed out ‘gut full’ at 59.8% which equates to a live slaughter weight of 698kg and hence DLWG from birth of a 1.67kg. If the bulls had been weighed ‘gut empty’ i.e. as per in a market or abattoir then the killing out percentage would be approximately 62%. Some 39% of the bulls recorded E grades for conformation with the remainder grading U+ which is out-standing. Full details and averages of all the bulls and also the heifers with feed intakes and feed conversion ratios will be presented in a subsequent article. 

 

Table 1 Interim bull finishing results.  

 

 

30 Bulls

Live wt at slaughter (kg)

698

Days to slaughter

394

DLWG from birth (kg)

1.67

Kill out

59.8%

Carcase weight (kg)

417.4

Daily carcase gain* (kg)

1.00

% E grades

39

% U+ grades

61

Note: Carcase birth weight was assumed to be 24kg

 

 

One of Alan and John Dores’s reactions to this year’s very high cereal prices compared to last year is to slaughter the bulls earlier and lighter before any possible deterioration in feed conversion ratio. Last year’s crop of bull calves recorded carcase weights of 438kg i.e. some 21kg heavier but were 30 days older. I estimate that this strategy has ‘paid off’. Selling slightly lighter bulls would result in a lower return of £66.15 per bull but would have cost £72.10 to put on. This is based on £60.10 of feed (9.5kg per head per day of 16% CP Barley mix and 4kg silage) and £12 of miscellaneous costs i.e. bedding etc. at 40p/bull/day.   

 

World record performance for carcase daily gain!

 

Within every population there is variation in performance but it always follows the random distribution curve with very small numbers of either ‘high fliers’ or ‘relatively poor doers’ which it is why it is important to discuss average performance rather than quote individuals which can sometimes occur in the pub or at a discussion group! Nevertheless despite this comment one particular bull calf stands out with his performance. This ‘high flier’ was a Charolais calf sired by Balthayock Clifford, a bull with excellent back breeding and a top 1% Terminal Index with an EBV for growth of +61kg at 400 days. This calf was slaughtered at exactly 365 days old with a carcase weight of 471kg grading E3 thus recording a carcase gain of 1.22kg per day. With a kill out percentage of 59.8% this equates to live weight at slaughter of 788kg with a massive 2.04 kg DLWG from birth to slaughter. Taking into consideration that the calf would hardly exceed growth rates above 1kg per day in its first month of life this bull must have recorded DLWGs of nearly 3kg per day at its peak. The daily carcase gain from birth to slaughter of 1.22kg we believe is a world record for a commercially finished bull unless someone can provide evidence to the contrary!

 

I am a great believer in setting production targets and this is something Simon Frost follows. His target was to achieve this 1.2kg daily carcase gain from birth with one of his Charolais sired bull calves. The question is therefore what are Simon Frost’s next targets?  Is it to achieve the same carcase weight but in 10 days less thus achieving a carcase gain in excess of 1.25kg?  I would suggest that rather than focus on an individual that he should aim to get all of his bulls to record a daily carcase gain of 1.0kg per day from birth to slaughter when last year it was 0.94kg.  

 

The bulls were slaughtered at Kepak in Wakefield and exported to a European market that does not penalise heavy weight carcasses. It is a crazy situation that some abattoirs penalise heavy weight carcasses which have been produced very efficiently. Some abattoirs used to penalise carcase weight over 400kg but this has changed recently and many have relaxed their buying specification. For example one of the leading abattoirs in the UK pays on all weight up to 450kg for E and U grades but deducts 10p/kg for any additional weight. With the same abattoir if the carcase is an R grade or below then any weight over 450kg is not paid. This penalty is basically due to the size of a plastic tray for a sirloin steak in a supermarket since the steak must be ¾-1 inch thick! Some action needs to be taken to change butchery techniques to remove this unfair penalty. Kepak do not penalise heavy weight carcasses.               

 

Some negative comments have been made by readers about the quality of Simon Frost’s Limousin x Holstein-Friesian suckler cows based on the picture shown in the first article (Farmers Weekly 21st January 2011). The cow pictured was a first calved heifer and her bull calf went on to produce a carcase weighing 430.8kg at 388 days old grading U+3. I trust this silences those sceptics! 

 

Post-calving management

 

Calving starts on the 10th of February with 25 replacement heifers with the main herd calving down three weeks later. The average time from birth for the calf to take its first vital intake of colostrum is just 30 minutes which is crucial for calf health and performance. Colostrum is the ‘elixir of life’! 

 

Calving problems at Hopping Farm are relatively minimal and the birth weights and calving ease scores are being recorded which will be presented in a subsequent article. Using Charolais bulls with positive Calving Ease Direct EBVs with high accuracy (50+%) on cows in lean condition (score 2)  minimises calving difficulties. However if an occasional calf does has a very difficult birth and is struggling to survive Simon Frost administers a ‘health cocktail’ of Dopram, Voren, Selenium, multi vits and Synulox. This has proven to be very effective in minimising mortality. 

 

Once the calf is paired up with its mother they are turned out as soon as weather and ground conditions allow. They go out onto minimal grazing but fed silage since putting them initially on to good quality grazing i.e. 8-10cm sward heights for the first 4-6 weeks would result in excessive milk yields with Simon Frost’s milky Limousin x Holstein-Friesian cows which would be too much for the calf to take. Thereafter grazing quality is gradually improved with the objective of offering pasture at 8-10cm sward heights to increase milk yields and cow condition score in readiness for bulling. Having cows in a rising plane of nutrition leading up to and during the bulling period at condition score 2.25+ is a key factor in optimising fertility.

 

High Mag molassed mineral buckets which also have a high copper specification are offered for free access feeding and the cows are also given a Cosecure bolus supplying copper, selenium and cobalt. Copper deficiency is a major problem on Simon Frost’s farm due to the high molybdenum soil content which locks up copper.

 

In 2010 there was only 1 cow death in the 125 cow herd at Hopping Farm and that was a cow that had been knocked in an accident.    

 

Calf health

 

Power washing and disinfecting the calving boxes every 3 weeks has significantly improved calf health and cut down on anti-biotic use especially with calves born late in the calving period. The only major threat to calf health in recent years at Hopping Farm is coccidiosis. The symptoms are a ‘mucky dark scour’ which if untreated quickly include blood. Simon Frost’s immediate action is to treat with the coccidiostat Vecoxan which has proven to be very effective and quickly clears up problems. Simon believes that calves quickly recover and it doesn’t significantly affect subsequent performance provided the calf has early and successful treatment.  

 

Bull management

 

The Charolais bulls used to be put in with the replacement heifers on the 1st of May and the cows on the 21st. This year it has been decided to put bulling dates back by three weeks for calving to start in mid March which is now considered to be more appropriate for an upland farm in the Derbyshire dales. The very dry spring this year has been a bonus and facilitated early turnout but will this happen again?

 

The bulls have their feet trimmed about 3 months prior to going into the herd. This is good practice since if foot trimming is done within 2 months of work and causes some initial curative lameness it can influence spermatogenesis (sperm development takes 50-60 days) and subsequent fertility. Last year it was found that one of the 3 bulls on the farm was found to be infertile and was ‘firing blanks’. This has resulted in a batch of late calving (May-early June) cows. This problem is commonly seen in a lot of herds as the reason for having a batch of late calving cows.  Prior to this year Simon Frost had a calving period of just 14 weeks which compares favourably to EBLEX recorded herds with a 20 week calving period. Even the top 1/3rd EBLEX producers recorded a calving interval of 19 weeks! 

 

An option to consider is to semen test the bulls using electro-ejaculation techniques which costs approximately £100 per bull. Some veterinary practices that semen test a lot of bulls are reporting issues of either sub-fertility or infertility in 20% of the bulls they test. However electro ejaculation only gives a picture of the bulls’ semen on that day and it does not assess the bulls’ libido and its physical capability to serve a cow. There are also reports that a couple of bulls after been semen tested with an electro-ejaculator have subsequently failed to serve cows. Ideally semen should be collected by AV from a bull that is given a synchronized cow to mount which then also assesses libido. If an electro ejaculator test is to be done it must be by an experienced competent operator.    

 

Simon Frost firmly believes that all bulls sold before breed society sales should be semen tested. This should prove highly beneficial for the purchaser and also lower bull fertility insurance premiums for the vendor. This year Simon will rotate bulls every 3 weeks around the bulling groups.           

 

Post-calving/bulling summary:

 

  • Ensure an early and adequate intake of colostrum
  • Gradually increase cow nutrition post calving
  • Rising cow condition prior to and during bulling
  • Semen test and MOT bulls at least 3 months before work
  • Offer grass sward heights @ 8-10cm during the bulling period
  • Rotate bulls every 3 weeks


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Article No. 6 click here for word document

 

Ease of Calving  

 

Introduction:

 

This is the sixth of a series of 12 articles on Simon Frost’s suckler herd at Youlgreave in the Peak District. Simon achieves top 1% performance with his upland herd of 125 Limousin x Holstein-Friesian cows put to Charolais bulls which is the basis of the Farmers Weekly/Harper Adams Beef Focus Farm concept. The Charolais bulls have top 1-5% Terminal Indexes with focus on calving ease, growth and muscle EBV’s. The calves are sold at weaning to Alan and John Dore at Chesterfield and intensively finished. Last year the bull calves recorded a carcase weight of 438kg at 447 days old, which is exceptional performance.

 

This article discusses factors affecting calving ease and presents the birth weight and calving ease scores from the 2011 Hopping Farm calf crop.

 

Ease of calving

 

Ease of calving together with high daily carcase gains are key factors in determining profitability with suckled calf production.

 

Simon Frost uses high index Charolais bulls across his herd of Limousin x Holstein-Friesian suckler cows. Charolais bulls are also used on the bulling heifers which is a strategy few suckler producers would contemplate. This decision is taken based on the confidence in the bulls Calving Ease Direct EBV which have a high accuracy percentage. This avoids keeping a bull of a different breed which is likely to have a lower daily carcase gain. 

 

The Charolais has the highest carcase weight for age figure of all the beef breeds but this is associated with the highest incidence of difficult calvings since high growth rates are correlated to increased calf birth weights which creates issues with calving difficulties. It should be stated however that there is more variation within a breed than between all of the major beef breeds and that there are easy calving Charolais bulls as well as very hard calving Charolais bulls. Simon Frost spends a considerable amount of time studying the bull sale catalogues to search for ‘curve benders’ – easy calving bulls identified by EBVs but with very high growth rates and muscle area. The Breedplan performance recording system provides breeders with practical help in identifying bulls with excellent growth and muscling that the breed is renowned for. Meanwhile an improvement in Calving Ease of the national Charolais herd has been achieved in the last year and the Charolais is the only beef breed to have achieved this.        

 The beef industry needs to take a ‘leaf out of the book’ of the poultry industry. This is a sector that doesn’t receive subsidy and producers have had to focus on genetic improvement for growth and FCR. In the 1950s it took a bird 77-84 days to get to table weight. About 15 years ago it took 42- 43 days to get to 2.25 kg with an FCR of about 1.8- 1.9. Now it takes 35 days with an FCR of 1.7. What must be remembered that despite this tremendous improvement in growth rate is that ‘the egg has never got any bigger’! 

Pedigree breeders must give greater priority to calving ease and I see no place for hard calving bulls in the beef industry. Bulls that are easy calving can be identified by the Calving Ease Direct EBV which should have a positive score with a high accuracy of at least 45% but ideally over 50%. Using these bulls on cows that are in lean condition (score 2) at calving will significantly minimise calving problems and deaths.

 

The calving data from the 2011 calf crop from Simon Frost is presented in table 1. It compares the calving results from two sires, Littlebovey Altra and Balthayock Clifford. When comparing the two bulls Altra has the best Calving Ease Direct EBV (+2.4 versus -3.1) and lower Birth Weight EBV (+2.2 versus +3.6kg) however Clifford has the highest 400 day weight EBV (+62 versus +44kg) and Terminal Index (45 versus 35). The results clearly show how faith can be put in EBVs with Altra’s calves being born lighter with an easier calving score. Calving difficulty score is based on a scale from 1 (unassisted) to 5 (caesarian).  

 

Table 1. Hopping Farm 2011 Calf Crop Results.

 

Sire

Altra (Terminal Index +35 Top 5%)

Clifford (TI +45 Top 1%)

Calving Ease Direct EBV (%)

+2.4 (Breed Average -0.1)

-3.1

Birth Wt EBV (kg)

+2.2 (Breed Average +2.5)

+3.6

Dam

Heifers

Cows

Cows

Calf sex

Female

Male

Female

Male

Female

Male

Birth Wt (kg)

37.0

41.9

43.4

48.3

40.1

49.0

Birth Wt Range (kg)

35-41

39-45

40-47

43-51

38-48

33-57

Calving Ease Score

 (1-5)

1.0

1.4

1.4

2.0

1.4

2.2

Calf Mortality (%)

0

0

0

0

0

3.4

  

Altra was used on the replacement heifers which go to the bull 3 weeks before the main herd and he was then put to a group of cows. It is interesting to note that the calf birth weights from the cows were on average 6.2kg heavier compared to the first calving heifers. Simon Frost attributes much of this to the condition of the heifers. The heifers started the winter in mid pregnancy in fit condition (score 3-3.5) and were outside living off ‘snow and straw’ (they also got 3.5kg of 45%DM silage plus free access to mineral buckets). They were housed in early January four-six weeks from calving and fed a low energy ration based on 6kg of silage and ad lib straw supplying only 62 MJ of ME. The heifers calved down at condition score 2.25 and as can be noted from table 1 calving problems were virtually nonexistent.   

 

Simon Frosts approach to managing calving and hence minimises losses is to try and be present at the birth which does mean some late nights or early starts in the morning. This is only practically possible with a compact calving period. This supervision ensures that the calf receives its first vital colostrum intake within 30 minutes of being born. Over the years Simon has developed his expertise to supervise calvings and believes too many stockmen are too quick to get on the calving ropes and pull the calf especially when the head and shoulders are out. Patience is often required!

 

The calf that died from Clifford was 1 out of 29 bull calves that were born and according to Simon Frost it was a thick heavy shouldered and well fleshed calf that weighed 47kg and would have easily graded an E if he had survived.  Despite this loss a mortality rate of 1.2% from 84 calves sired from the 2 bulls is exceptional performance. Overall calf mortality for the herd was 0.8% which compares favourably to calf mortality rates in ‘average’ and top 1/3rd EBLEX recorded LFA sucker herds of 2.2% and 1.7% respectively.

 

The mother of the calf that died also had a very difficult calving last year so she has been marked for culling. This aspect of culling dams which have birthing difficulties (not attributed to the sire) is a strategy which the easicare sheep producers have adopted.         

 

This year the vet was only called out once to deal with a difficult calving. It was a big calf presented backwards so the decision was taken to carry out a caesarian in order to get a live calf.

 

The third bull used by Simon Frost last year was Swalesmoor Duke. His Calving Ease Direct EBV is +4.5 with a Birth Weight of +2.0kg yet an impressive 400 day weight EBV of +48kg and Terminal Index of +40 making him a Top 1% bull. His calving data is shown in table 2 and clearly identifies him as having the easiest calving figures of the three bulls and again confirms the reliability of EBVs.    

 

Table 2. Calving Data for Duke.

 

Sire

Duke (TI +40 Top 1%)

Calving Ease Direct EBV (%)

+4.5 (Breed Average -0.1)

Birth Wt EBV (kg)

+2.0 (Breed Average +2.5)

Dam

Limousin x Cows

Calf sex

Female

Male

Birth Wt (kg)

40.2

47.8

Birth Wt Range (kg)

37-43

35-54

Calving Ease Score (1-5)

1.0

1.8

Calf Mortality (%)

0

0

 

Simon Frost regularly hosts visit by Harper Adams students. The ideal time is just after calving when the students see the new born calves. Many students comment that the calves don’t look very big or impressive, but the answer to that is that if you choose easy calving bulls then you are going to get modest sized calves that are born alive and not dead! When the students then see the bulls that are intensively finished that are from last year’s calf crop weighing 700kg at 13 months old there is ‘sheer and utter silence and a dropping of jaws’ as they cannot believe how much the bulls have grown!

 

The results from the 2011 calf crop clearly illustrate that EBVs work and the take home message is ‘have faith in EBVs to improve performance and profit’.      

 

The beef industry must embrace EBVs. In North America and Australia breeding bulls are often purchased ‘blind’ by the buyer and selected purely on EBVs. They are also starting to embrace genomic enhanced EBVs using DNA technology to identify factors such as tenderness, marbling but also recently to identify dry matter intake and residual feed intake. Some pedigree breeders in the UK are now starting to use this technology to aid breed selection and improvement. This gives a lot more data to support bull buying decisions. There is a classic phrase ‘Information is Power’ which definitely applies to EBVs.

 

The UK beef producer would never buy a bull without seeing him in the flesh since he will want to see the bull walk and assess his style. My plea to the industry is that if he has an ugly head or his ears are in the wrong position do not reject him if he has fantastic EBVs! What commercial value has a head - NONE.     

 

Ease of Calving summary:

 

  • Select bulls with positive Calving Ease Direct EBVs and high 400 day and eye muscle area EBVs i.e. curve benders’
  • Aim for accuracy figures of 45% or higher with the Calving Ease Direct EBV
  • Target Birth Weight EBV ideally at breed average or lower
  • Calve cows at Condition Score 2
  • Have faith in EBVs

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Article No. 7 click here for word document

 

Bull Calf Finishing Results  

 

Introduction:

 

This is the seventh in a series of 12 articles on Simon Frost’s suckler herd at Youlgreave in the Peak District. Simon achieves top 1% performance with his upland herd of 125 Limousin x Holstein-Friesian cows put to Charolais bulls which is the basis of the Farmers Weekly/Harper Adams Beef Focus Farm concept. The Charolais bulls have top 1-5% Terminal Indexes with focus on calving ease, growth and muscle EBV’s. The calves are sold at weaning to Alan and John Dore at Chesterfield and intensively finished.

 

This article reports the finishing results of the 2010 born bull calves. The results for the heifers will be reported in a subsequent article.

 

Bull finishing results

 

Easy calving and aiming for the highest possible daily carcase gain are the key drivers of profitability in suckled calf production. Simon Frost achieves top 1% herd performance by focusing on these traits by using Charolais bulls with positive Calving Ease Direct EBVs and making sure that his Limousin x Holstein-Friesian suckler cows are in lean condition (score 2) at calving. High daily carcase gains are achieved by using bulls with high EBVs for growth and muscle area alongside focus on herd health and nutrition throughout the production cycle. The Charolais bulls used by Simon are termed as ‘curve benders’ since they have top 1-5% Terminal Indexes and are easy calving bulls as well as having very high growth rates. The calves are sold at weaning in mid October to Alan and John Dore at Glapwell near Chesterfield and intensively finished.

 

The bull calves arrive at the Dore’s having been creep fed up to a maximum of 1.5kg per head per day from early August prior to weaning in October. The calves therefore go to the Dore’s ‘knowing what concentrates are’ but they are not fed ad lib. The bull calf weaning weights last year were 391kg at 212 days old equating to a DLWG of 1.63kg from birth.

 

Two weeks prior to weaning the calves are vaccinated with Rispoval4® (Pfizer Animal Health) to minimise respiratory disorders. They have their backs clipped out and treated with Closamectin® (Norbrook). The bulls are finished on a barley based home mix with ad lib top quality big bale silage.

 

The 56 Charolais bulls finished this year achieved a mean carcase weight of 427kg at 415 days of age which is just over 13½ months old (see table 1). The recognised industry target (EBLEX 2005) for intensively finished suckled bulls is a slaughter weight of 590kg at 14 months old. If a killing out percentage of 60% is assumed this equates to a carcase weight of 354kg. Simon Frost’s bull calves have ‘blown this target out of the water’.

 

28.6% of the bulls recorded E grades for conformation, 67.8% graded U and only 3.6% R which is out-standing and contrary to many beef producers’ thoughts that there are alternative breeds that have superior conformation to the Charolais. Simon Frost selects terminal sires with very high Eye Muscle Area EBVs as well as bulls with positive Calving Ease Direct and high 400 day weight EBVs. His target Eye Muscle Area EBV is +6.0sq cm compared to the breed average of +2.9 which is a major contributory factor to the excellent carcase grades being achieved. The bulls recorded a mean fat score of 3.26 (scale 1-5) and graded either fat class 3 or 4L so there were no issues of carcasses being ‘too lean’.

 

The bulls killed out ‘gut full’ at 59.8% which equates to a live slaughter weight of 714kg and hence DLWG from weaning to slaughter of 1.59kg with a birth to slaughter DLWG of 1.62kg. Since breeds vary in their killing out percentage it is more appropriate to calculate and quote daily carcase gains. To do this requires the birth carcase weight to be deducted and the standard practice is to take 24kg off the carcase weight to account for the birth weight. When this is done Simon Frost’s bulls have recorded a phenomenal daily carcase gain from birth to slaughter of 0.97kg per day.

 

Table 1. Hopping Farm bull finishing results.  

 

Live wt at weaning (kg)

391

Days weaning to slaughter

203

Live wt at slaughter (kg)

714

DLWG weaning to slaughter (kg)

1.59

Days birth to slaughter

415

DLWG from birth (kg)

1.62

Kill out %

59.8

Carcase weight (kg)

427

Daily carcase gain from birth (kg)

0.97

% E grades

28.6

% U grades

67.8

% R grades

3.6

 Note: Carcase birth weight was assumed to be 24kg

 

Last year’s bull calves recorded a slaughter weight of 438kg at 447 days old equating to a daily carcase gain from birth of 0.94kg. This year’s bulls have shown an improvement with a daily carcase gain of 0.97kg. The target for next year is 1.00kg. 

 

Feeding management and FCRs

 

The bulls are a fed a 16% CP barley mix containing Hi-pro Soya and Linseed Flakes. The Dore’s believe that it is essential that suckled bulls with exceptional growth potential need highly digestible by-pass protein sources to maximise lean tissue deposition. Details of the Dore’s finishing ration were presented in the 4th FW article dated 6 May 2011.

 

The average daily feed rate of barley mix from weaning to slaughter is 6.8kg. On arrival the bulls get 4.1kg/h/d of barley mix which is fed twice per day and after a fortnight gradually increased to 5.9kg. The ration is then tweaked up to 8.2kg per head per day to get adequate fat cover (3-4L) on the bulls. The finishing ration is fed to appetite twice per day in troughs which means that the bulls always have an edge to their appetite which is different compared to offering feed via a hopper. The calves are also offered ad lib top quality (50.8% DM, 13.6% CP, 11.6 ME) big bale grass silage and intakes averaged 4kg per bull per day.

 

Table 2. Bull calves feed intakes and FCR.

 

Concentrates (kg/bull)

1,384

FCR (kg concs: kg gain)

4.03:1

Kg silage (kg DM in brackets)

812 (412)

Finishing FCR (kg DM: kg lwt gain)

4.74:1

Lifetime Concs FCR (kg: kg lwt gain)

2.08:1

 

The bulls converted their feed with incredible efficiency with an FCR of 4.74(kg DM):1 compared to the recognised target of 5.0:1. If the lifetime concentrates FCR is calculated including the 90kg of creep feed this equates to a lifetime concentrate FCR of 2.08:1 which is better than finishing pigs and close to broiler chicken FCRs! If the FCR is calculated based on kg feed dry matter per kg carcase gain then it is 2.96:1. I recognise that the calves were also fed cow’s milk (produced from grass) and silage but this cannot be used by humans and is a different angle to consider when beef production is considered to be inefficient compared to pig and poultry meat production.     

 

Bull calves from Cows and 1st Calved Heifers

 

Charolais bulls are also used on the bulling heifers which is a strategy few suckler producers would ever consider. This decision is taken based on the confidence in the bulls Calving Ease Direct EBV which have a high accuracy percentage.  The performance of the bull calves produced from the cows and first calved heifers in shown in table 3 and whilst the calves from the heifers had 16kg lighter carcase weights I estimate that if a different breed that is very easy calving had been used that the carcase weights would be some 80kg lighter on the same finishing system. The alternative would be finishing the calves on 24+month extensive system to achieve the same carcase weight thus virtually doubling their age at slaughter.

 

Table 3. Bull calves from Cows and 1st Calved Heifers.

 

Dam of bull calf

Cow

Heifer

Live wt at slaughter (kg)

718

693

Days birth to slaughter

415

414

DLWG from birth (kg)

1.63

1.57

Carcase weight (kg)

430

414

Daily carcase gain (kg)

0.98

0.95

               

Bull progeny comparison

 

The bull calf finishing results have been analysed for the progeny from two sires; Littlebovey Altra (Terminal Index +46 – a top 5% bull) and Balthayock Clifford (TI +62 – a top 1% bull). Altra is a very easy calving bull with a Calving Ease Direct EBV of +2.4% compared to Clifford which is a more difficult calver with an EBV of -2.8%. Clifford however has a very high 400day weight EBV of +62kg compared to Altra at +43kg and the breed average of +38kg. 

 

Table 4. Bull calves from Top 1% and Top 5% Sires.  

 

 Sire of bull calf

Altra (TI +46)

Clifford (TI +62)

 Live wt at slaughter (kg)

682

752

 Days birth to slaughter

410

422

 DLWG from birth (kg)

1.57

1.68

 Carcase weight (kg)

410

449

 Daily carcase gain from birth (kg)

0.94

1.01

 

The data in table 4 clearly illustrates that EBVs work and show that Clifford calves recorded higher daily carcase gains with carcase weights some 39kg heavier. With a finished beef price of £3.30kg carcase weight this makes the Clifford calves worth some £129 more. If the cost of 3.4% mortality and slightly harder calving is factored into the calculation the net benefit for the Clifford calves is £74 per bull. This difference is greater than predicted by the EBVs of the bulls.  

 

These results also mirror those found in a study recently carried out at Harper Adams when progeny from Limousin bulls with either a Top 1% or Top 10% Beef Value were compared. In this study the carcase weights were 14kg heavier for the Top 1% bull worth an extra £53. This again highlights that EBVs can underestimate the financial benefits of selecting Top 1% bulls and offers even more reasons why bull buyers should use EBVs as the basis for their selection and buy a bull with the best possible figures.  

 

Bull calf finishing summary:

 

  • Feed a high energy ration with good quality sources of protein
  • Gradually build up concentrate feed rates and offer good quality silage
  • Select for slaughter at fat class 3-4L and sell bulls at carcase weights required by the market
  • Use Top 1-5% Terminal Index sires that are easy calving with high 400 day weights and negative fat EBVs

 

 

References

 

EBLEX Beef Action for Profit 5 (2005) Better Returns from Suckler-Bred Bulls. Huntingdon: English Beef & Lamb Executive.

 

 

  
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Article No. 8 click here for word document

 

Lessons that can be learnt from the Poultry Industry  

 

 

Introduction:

 

This is the eigth in a series of 12 articles on Simon Frost’s suckler herd at Youlgreave in the Peak District. Simon achieves top 1% performance with his upland herd of 125 Limousin x Holstein-Friesian cows put to Charolais bulls which is the basis of the Farmers Weekly/Harper Adams Beef Focus Farm concept. The Charolais bulls have top 1-5% Terminal Indexes with focus on calving ease, growth and muscle EBV’s. The calves are sold at weaning to Alan and John Dore at Chesterfield and intensively finished.

 

By Jeremy Hunt

 

When beef meets poultry – Peak District beef producer Simon Frost – Farmers Weekly/Harper Adams’ Beef Focus farmer – came face-to-face with award winning poultry producer David Speller to see if there was any “common ground” between profitable poultry production and ways to make more money out of beef. JEREMY HUNT was there.

 

While it may seem churlish to try and draw comparisons between intensive poultry and the production of suckled calves, the meticulous attention to every facet of management and performance that underpins David Speller’s broiler unit near Chesterfield must prove that there are lessons to be learned by the beef sector.

 

Working with a system over which you have total “push button” control - in terms of environment and feeding – is the template of livestock production operated on this award winning unit. But it’s certainly a world apart from the plethora of unpredictability that is very much the norm for our traditional management of beef cattle.

 

Although beef farmers can never be expected to achieve the same level of control, there are elements of the cutting edge management at David Speller’s unit that should be examined more closely by the red meat sector in an attempt to emulate them in part to help create a much tighter and more effective approach to performance and cost control.

 

This poultry unit, which always has 180,000 birds on site, is staffed by one man for five-hours a day – an indication of the degree of computerisation that is responsible for every aspect of management.

 

And when any minor changes may have to be made they can all be undertaken, if necessary, by accessing the software through a mobile phone. On a recent visit to China, David Speller was able to make changes to the ventilation of one of his broiler sheds in Derbyshire via his mobile.

 

But it’s how he’s able to monitor every aspect of his costs of production - and the level of performance he demands to generate maximum profit from the 1.2 million birds he produces every year - that could be a valuable management stimulus to beef producers.

 

One of the most fundamental aspects of David Speller’s business is that he knows the birds on his unit are gaining 25% of their bodyweight every day. There is no guesswork over weight gain. He knows the level of performance to expect because the birds are the product of decades of genetic selection for optimum growth. So is that the challenge, via the use of Estimated Breeding Values, faced by the beef sector?

 

David Speller is also acutely aware of the financial impact on his turnover should any minor aspect of his management fail. A “blip” – even for a few hours – can mean fractions of grammes of lost weight gain that quickly multiply into significant cash losses through poorer growth.

 

Applying that approach to beef production should stimulate greater awareness of the knock-on effect of time-delays in marketing, forced extensions to the length of finishing times and short-falls in management – all of which can seriously erode margins.

 

“Feed conversion rate is my paramount concern – it’s absolutely critical to the profitability of every one of the 1.2 million birds we produce every year,” says David Speller, Farmers Weekly’s Poultry Farmer of the Year 2009.

 

“As the price of feed keeps rising FCR becomes more and more relevant. Maintaining the optimum level of FCR – and we’re currently averaging about 1:6 - is about management, but it’s also about genetics. Efficiency is directly affected by age and the younger the birds the higher the feed conversion. The bigger they get the more calories they use.”

 

A new contract to produce birds to kill at 42 days will fractionally affect feed conversion rate compared with that being achieved with birds killed at 37 days and weighing 2.25kg.

 

“All sorts of things can affect the birds’ performance. They burn calories just by breathing and moving around but stress is a big user of calories – and the same losses can occur if conditions are too hot or too cold. So with 45,000 birds in a shed, if they all burn two calories because they are too cold, I have to feed them 90,000 calories just to counter that loss.”

 

But it’s this level of monitoring that warrants high investment. An under floor heating system has been installed costing £300,000.

 

Based on one chicken’s ability to feed a family of four, David Speller’s 2.5 acre unit produces around five million meals a year, but he stresses that it’s the birds’ genetics that are “vital” to the business’s profitability.

 

“We aren’t artificially stimulating growth. We feed a high protein, high calorific diet. Genetics and the level of management to get the optimum performance from those genetics has to be fundamental to any system of meat production. But the more you fine-tune the genetics to improve performance the greater the need for higher standards of management to fully exploit and keep pace with the improvement.

 

“But in the business we run every part of the production chain is working together. Everyone involved at every stage wants to keep their business profitable. In the beef sector it would seem there’s mutual benefit to be gained by developing closer links along the chain. We are working with Moy Park which has its own parent breeding stock, its own hatcheries and mills producing chicks for us to rear which then go back to them to be slaughtered and sold.

 

“I’ve worked in other sectors of the farming industry and seen the sort of cut-throat tactics that operate. Working together in an integrated supply chain with the joint mentality of everyone making a profit at every stage, has got to be the way forward.”

 

While David Speller acknowledges his intensive poultry system is far removed from producing beef from the suckler herd, he still believes there are big opportunities for beef producers;

 

“Working with cattle of known genetic potential, closely monitoring costs of production and any elements of the system that may affect it and more co-operation in the supply chain - these are the areas of the beef farming business that have the potential to improve beef producers’ profits.”

 

Genetics play an equally important part in the profitable production of beef cattle as they do in the profitable production of poultry - but they have got to be the right genetics in terms of how they influence an animal’s performance and that can only be achieved by basing all breeding decisions on Estimated Breeding Values, say Simon Frost.

 

“David Speller’s broiler unit is at the cutting edge of meat production and I was hugely impressed by the high standards he’s achieved throughout the production cycle. There are lessons we can all learn from the way in which every aspect of the management of the birds is so precisely monitored to achieve maximum profitability, but it’s all aimed at achieving the best FCR – that’s the trigger for profit and that’s what beef producers must concentrate on.”

 

Simon Frost was in full agreement with the importance placed by David Speller on establishing a close relationship between every stage of the supply chain. “It’s something I also believe is essential and can be of tremendous benefit to beef producers. The aim must be to try and eliminate as many of the variables and unknowns as possible.”

 

“By using high index bulls on suckler cows of known breeding we are producing calves that we know have superior genetic potential in terms of growth and feed conversion. And in our case they are sold to the Dore family in Chesterfield who have a system of feeding geared to getting the very best out of these calves as our figures of up to 3kg daily live weight gain a day have proved beyond doubt.

 

“We may be working in a very different world to David Speller but our aim has also been to link together as many aspects of the production chain as possible to ensure finished cattle with a high potential for growth based on their genetics are given every opportunity to prove their true value.”

 

“David Speller firmly believes there’s a big opportunity to establish closer associations between each part of the beef supply chain based on an openness and commitment at each stage. The beef industry needs to work together on this. Through EBVs we’ve got the ability to produce cattle with superior growth; the next stage must be to ensure that we manage and market these animals in a way that will bring assured stability to the beef production chain.”

 

 

 
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Article No. 9 click here for word document

 

Heifer Calf Finishing Results  

 

Introduction:

 

This is the ninth in a series of 12 articles on Simon Frost’s suckler herd at Youlgreave in the Peak District. Simon achieves top 1% performance with his upland herd of 125 Limousin x Holstein-Friesian cows put to Charolais bulls which is the basis of the Farmers Weekly/Harper Adams Beef Focus Farm concept. The Charolais bulls have top 1-5% Terminal Indexes with focus on calving ease, growth and muscle EBV’s. The calves are sold at weaning to Alan and John Dore at Chesterfield and intensively finished.

 

This article reports the finishing results of the 2010 born heifer calves.

 

The suckler herd

 

Running a herd of small-medium sized milky beef cross dairy-bred suckler cows which are put to high index, easy calving, fast growing terminal sires is viewed by both Simon Marsh and Simon Frost as a blueprint for efficient and profitable suckled calf production.

 

Simon Frost achieves top 1% herd performance by using Charolais bulls with positive Calving Ease Direct EBVs and making sure that his spring calving Limousin x Holstein-Friesian suckler cows are in lean condition (score 2) at calving. By using bulls with high EBVs for 400 day growth the calves daily carcase gain can be maximised. These bulls which have top 1-5% Terminal Indexes are termed as ‘curve benders’. Last year the bull calves recorded a phenomenal DLWG of 1.63kg to weaning at 212 days old weighing 391kg. These excellent DLWGs are produced from a copious supply of milk from the Limousin x Holstein-Friesian cows which put their energy intake from cheap grazed grass into milk and not body condition.

 

The very high DLWGs are achieved without the calves being stuffed with creep feed which is only introduced in early August with the bulls and late August with the heifers. The creep is fed to a maximum of 1.5kg per calf day and is a 16% protein high NDF nut (Massey Feeds 16% CP X-Tender Nuts) with the objective of growing frame rather than putting on flesh. Feeding creep is an absolute essential priority since not only does it improve rumen development, it is also extremely efficient with the calves converting their creep at FCR’s at 3.5:1 but most importantly it helps minimise the growth check at weaning.

 

The calves are sold at weaning in mid October to Alan and John Dore at Glapwell near Chesterfield and intensively finished. They therefore arrive at the finishing unit knowing what concentrate feed is. They are wormed, vaccinated against pneumonia 2 weeks prior to weaning and have their backs clipped out. 

 

The Dore’s finish some 600 cattle per year buying Continental bred bulls, steers and heifers either direct from farm or via markets. They appreciate knowing that the calves from Simon Frost are bred from high index bulls with exceptional growth potential. The question I would ask store buyers is that when they buy a tractor they look at the colour and age of the machine but always get a full breakdown of the spec of the machine. The industry needs to adopt this philosophy to buying store cattle since most buyers of store cattle only look at their colour, shape and age and then spend a lot of money on them without knowing their spec i.e. have they have been bred by high index bulls!      

 

The results from Simon Frost’s 2010 born bulls are shown in table 1 which have been benchmarked against EBLEX targets. The 56 Charolais bulls from Simon Frost achieved a massive carcase weight of 427kg at 415 days of age which is just over 13½ months old. Simon Frost’s bull calves have smashed the EBLEX targets.

 

Table 1. Bull finishing results – EBLEX target vs S Frost’s bulls.

 

Targets

S Frost

Start wt (kg)

340

391

Slaughter age (mo)

14.0

13.6 (415 days)

Slaughter wt (kg)

590

714

DLWG (kg)

1.45

1.59

Kill out %

59.0

59.8

Carcase weight (kg)

348

427

Daily carcase gain from birth (kg)

0.77

0.97

Conformation class

-U/U+

29% E, 68% U, 3% R

Concs (kg/bull)

1,500

1,384 + 412kg DM silage

FCR (kg feed DM/kg gain)

5.3:1

4.7:1

Lifetime Concs FCR

N/A

2.08:1

 

Heifer finishing results

 

It is well accepted that the problem with intensively finishing heifers is that since they are an early maturing breed type i.e. are easily fleshed, that they will finish at significantly lower slaughter weights compared to bulls. The strategy adopted by the Dore’s is feed the heifers top quality (11.6ME, 50.6% DM, 13.6% CP) big bale grass silage but with significantly lower home mix feed levels compared to the bulls. 

 

‘As per’ the bulls the home mix fed to the heifers is formulated to contain 16% CP. It is based on rolled barley with some oats to take the heat out of the ration i.e. lower the starch content and provide some fibre, quality protein from hipro soya and linseed flakes with minerals. This might appear to be a ‘Rolls Royce’ feeding strategy but when you have high genetic merit stock with potential to record above average DLWGs they need this level of nutrition. There is a classic saying that ‘If you have a Formula 1 car you shouldn’t put diesel in it’ and this applies to Simon Frost’s calves!

 

The daily home mix feed rate to the heifers is fixed at 3.1kg per head which is fed in two feeds with ad lib access to silage. From 5 weeks prior to slaughter the home mix is increased to 5.7kg to accelerate DLWGs and get adequate fat cover to target fat class 4L, although getting sufficient finish on the heifers does not tend to be a problem.  

 

The average carcase weight for all heifers slaughtered in the UK is 322 kg with a slaughter age of 712 days (23.3 months). Simon Frost’s heifers achieved a mean carcase weight of 313kg at just 447 days of age which is just over 14.6 months old. Compared to the UK average the heifers were therefore finished some 265 days (8.7 months) sooner which will help to reduce their carbon foot print. Full animal performance details are shown in table 2.

 

Table 2. Heifer calves finishing results.

There were a range of fat classifications with 32.7

 

Live wt at weaning (kg)

330

Live wt at slaughter (kg)

559

Days weaning to slaughter

226

DLWG weaning to slaughter (kg)

1.02

Days birth to slaughter

447 (14.6 months)

DLWG from birth (kg)

1.16

Carcase weight (kg)

313

Kill out

56.0%

Daily carcase gain from birth (kg)

0.66

% E grades

10.2

% U grades

49.0