PowerPoint Presentationbeefandlamb.ahdb.org.uk/wp-content/uploads/2015/07/... · 386kg Start LW...
Transcript of PowerPoint Presentationbeefandlamb.ahdb.org.uk/wp-content/uploads/2015/07/... · 386kg Start LW...
10.30 Welcome & refreshments
10.40 Beef Feed Efficiency Programme update
Mary Vickers & Andy FootAHDB B&L
11.10 Practical cattle nutrition to improve feed efficiency
Kevin DoylePhileo UK & Ireland
11.40 Using breeding tools to drive efficient beef production
Emma SteeleSignet Breeding Services
12.10 Tackling respiratory disease in your cattle
Yoav Alony-GilboaFriars Moor Vets
12.40 Eliminating bovine viral diarrhoea (BVD) from your herd
Eleanor KaneBVDFree manager
13.00 Lunch‘Raising the steaks’ beef marketing demonstration
Hugh Judd, AHDB B&L Senior Food Service Manager
Kim Matthews & Mary VickersAHDB Beef & Lamb
Today
1. What is feed efficiency & why select for it?
2. What else is going on around the world?
3. What is happening with the national project?
4. Why we need your help
Feed efficiency genetics
Management &
environment
What is feed efficiency?
2/3 affected by management
& environment
1/3 by genetics
Why feed efficiency?During the growing and finishing phase a 1% improvement in feed efficiency has the same economic impact as a 3% increase in rate of gain.
Selection for feed efficiency is independent of • growth• mature weight
6
Which one is most efficient?
386kg Start LW 398kg
1.5kg/day DLWG 1.5kg/day
1640kg Estimated feed intake 1670kg
1880kg Actual feed intake 1580kg
+240kg Net feed intake -90kg
Alberta & Australia
• efficient growing animals are efficient as adult cattle
• progeny of efficient beef cattle are more efficient than those of less efficient cattle
• Feed efficiency is repeatable across feeding phases eg growing finishing rations
Alberta & Australia results
• maintenance requiremts of cow herd by 9-10%
• feed intake by 10 -12%
• average daily gain or mature size
• FCR by 9 to 15 %
• calf-weight-per-cow feed intake by 15%
• methane emissions by 25 -30%
• manure N, P, K by 15 -17%
• 4 year project• Funded by Defra and AHDB £1.75M• Led by AHDB & SRUC
ObjectivesSelective breeding for improved feed efficiency
1. Establish a consortium of stakeholders
2. Undertake studies to devise, test and validate selection and breeding objectives
3. Develop protocols for use at national scale
4. Establish a network of facilities
5. Undertake genetic analysis
6. Establish business model for on-going national programme
Vision Legacy
• demonstrate the ability to measure and select for feed intake parameters in cattle on commercial farms
• establish a system for recording after the end of the project that can be extended across cattle breeds.
Industry benefits
• Identify individual animals and sires with superior genetics for feed efficiency
• Enable breeders to actively select for feed efficiency
• Development of model(s) for longer term legacy for industry
• GHG emissions
• Begin with Limousin breed
• 1800 records to collect
• Initial 500 records to be collected at SRUC
• Remaining 1300 records to be collected on 2 commercial farms in England
• Completion 2019
Project overview
GrowSafe feed intake recording equipment
Pure Limousin and Limousin crossbred steers
7-8 months of age at trial start
Measurement period 63 days
Measuring feed efficiency
Link to film clip
• Individual intake• Feeding behaviour• Health alerts
June 2017
Batch 2 - Dorset
• 111 steers• 21 Limousin sires• 14 farms of origin
Start age 9.9 months
Start LW 355kg
End LW 459kg
Test DLWG 1.6kg/day
Ration
Feed FW Inclusion %
Grass silage (11.6 MJ ME) 74
Blend 23
Molasses 3
TMR spec (40% DM)
Forage in DM 50%
ME (MJ/kg DM) 12.3
Crude protein (% in DM) 14.5
Ultra-sound
mm Start End
Eye muscle diam. 59 68 (46-80)
Lumbar fat depth 1.1 2.4 (0-6)
Residual feed intake by sire – B1&2
Low RFI = more efficient
High RFI = less efficient
RFIkg DMI/day
sire
Relationship between DM intake and growth rate by sire
0.8
1
1.2
1.4
1.6
1.8
7 8 9 10 11 12
DLWGkg/day
DMI kg/day
Reduce CoP by 10-15 p/kg LW gain
Commercial significance
Growing/Finishing cattle
• 350-650kg = 300kg gain
• @ F:G of 7:1 12% saving = 441kg per head
• £4410 feed savings per 100 head
Breeding herd - annual feed cost
• 10% reduction = £53/head
• Excluding replacements
• £5300 feed savings per 100 cow herd
Limousin sired cattle needed
• Steers
• Must originate from a farm that is able to supply 8-16 steer calves from the same, currently (or previously) registered Limousin bull/AI sire
• Be aged from 2 weeks up to approximately 8 months old
• We are working with Blade and Buitelaar
Also currently looking for a recording farm
Thank you
Please put sires on calf passports if accurately known