1. Selection for Lifetime Production

2. Complexity of Lifetime Production

3. Process of Genetic Improvement
Detailed and meaningful data capture
Accurate prediction of genetic merit
Meaningful selection objectives and targets

4. Data Sources SIRE LINE DAM LINE MULTIPLICATION CBVs EBVs
and selection decisions
MULTIPLICATION
COMMERCIAL
Breeding stock GN
COMMERCIAL CROSS BRED
SLAUGHTER PIGS
SIRE LINE
DAM LINE
GN Progeny Performance Data
PICTraq
Database
Commercial Sow Performance Data
Objective is to select within pure lines for commercial crossbred performance
Sire line & Dam line
Sire Line
Piglet Performance:
Mortality
Pre-weaning
Nursery
Grow/finish
Production traits
Carcass traits
Dam Line
Sow performance
Sow mortality
Reproduction
Contemporary crossbred information used in BLUP to increase the accuracy of selection for commercial crossbred improvement objectives
subject to G x E interaction (e.g., growth)difficult or impossible to measure sufficiently in pure line selection candidates (e.g., reproduction, mortality, congenital defects, meat quality)
Commercial Progeny Performance Data

5. Dam Line Programs
April 2011

6. Purebred and Crossbred Sows Contributing to Genetic Evaluation

7. GNX FIRE Test Implemented in May 2010
Enhanced Differentiation
Pedigreed commmercial pigs
Terminal
Maternal
Heavy slaughter weights
Approximately 290 lbs.
Low energy, pelleted diets

8. Prediction of Genetic Merit
Basic principle…
Resemblance between relatives
Meaningful data
Accurate pedigree
Historically, we have utilized data flows combined with pedigree and small amounts of genomic information for prediction of genetic merit (i.e. EBV’s, index values, etc.)

9. Initial Implementation of New Era of Genetic Technologies
Genomic Selection
Initial Implementation of New Era of Genetic Technologies
Scrotal Hernia
Finisher Mortality
Total Born

10. What’s Next? Single Step Genomic Evaluation
Information extracted from the DNA can be used mainly in two ways:
Genetic markers: estimate the effect of each SNP on each trait.
Genomic relationships: estimate the actual fraction of genes identical by descendent

11. How many identical genes 2 pigs share? Resemblance Between Relatives
EBV
Based on pedigree, we assume it’s 50% between ALL full-siblings

12. How many identical genes 2 pigs share? Resemblance Between Relatives
EBV
Based on pedigree, we assume it’s 50% between ALL full-siblings
Genomic Information shows it is between 40 and 60%

13. Single Step Genomic Evaluation Where’s the Benefit?
Instead of assuming relationships based only pedigrees we define relationship on pedigree + DNA,
Therefore for every animal and every trait our genetic evaluation is improved…
Constantly linking newest phenotypic data with
Pedigree information augmented by DNA
Delivering a significant cumulative gain in accuracy of selection.

14. Single Step Genomic Evaluation Increasing Rate of Genetic Gain
TRAIT
ACC EBV
ACC GEBV
increase
Total Number Born
0.36
0.40
11%
Stillborn %
0.28
0.33
18%
Litter weaning weight
0.16
0.20
25%
Interval weaning - mate
0.11
0.14
27%
Survival birth - weaning
0.29
0.34
17%

15. Genetic Differentiation = Profitability Enhancement
If selection objectives and intensity are aligned and focused, PIC differentiation in the sow farm should be delivered via delivery of high quality weaned pigs at the lowest possible cost…
Maximum efficiency per litter
Maximum efficiency of inventory
Maximum efficiency in utilization of inputs

16. PIC Commercial Female Performance

17. PIC Commercial Female Performance

18. PIC Commercial Female Performance

19. Data currently captured in PIC genetic improvement program
Lifetime Production and Efficiency Targeting and Delivering the Key Drivers
Data currently captured in PIC genetic improvement program

20. Camborough Potential

21. Example of Lifetime Performance
GP 1070 sow in 6th parity with 26 NBA and 25 of those were weaned with help from foster sows

22. 53.3 pigs TB/sow/yr 51.1 pigs BA/sow/yr
Parity 1
114 days gestation
P1 18TB 16BA
140 Days to Parity 2
19TB 19BA
143 Days to Parity 3
22TB 20BA
139 Days to Parity 4
18TB 18BA
140 days to Parity 5
17TB 17BA
144 days to Parity 6
26TB 26BA…25 weaned
Lifetime Performance (so far)
820 days of herd life
120 pigs Born
116 Pigs Born Alive
0.146 pigs TB per day in farm
0.141 pigs BA per day in farm
53.3 pigs TB/sow/yr
51.1 pigs BA/sow/yr