Genetic Improvement of Pure Lines Identify the elite animals
Use ELITE animals as breeding stock
Average
Selected
Genetic Improvement of Pure Lines Use “the best” as breeding stock Next generation: Entire population improves!
Superior Avg
Genetic Improvement of Pure Lines Within line selection 4 Terminal Lines
4 Maternal Lines
2
Genetic Improvement of Pure Lines Selection objectives for each line 4 Terminal Lines
4 Maternal Lines
Survival & Robustness
Reproduction
Efficient Growth
Carcass Traits
Genetic Improvement of Pure Lines Key components Performance Data Genetic Relationships
Genetic Improvement of Pure Lines Pure line data collection PIC Genetic Nucleus Farms
Aurora Saskatchewan, Canada Apex South Dakota, USA
3
11/5/13
Genetic Improvement of Pure Lines Global data collection
Live Animals and Genetic Material Sent Around the World!
Genetic Improvement of Pure Lines Global data collection
Global Data Fed Back Into Genetic Evaluation
Genetic Improvement of Pure Lines Why collect commercial data? GN
Performance Level
High
Customer Farm
Lower Commercial
Environment
Genetic Nucleus
4
Genetic Improvement of Pure Lines Commercial data collection
GN
Pure Line Data
Commercial Herd Sow
Selection
Reproduction Data
Slaughter Pigs Grow/Finish Data Plant Data
Genetic Improvement of Pure Lines Extensive program!!!
Genetic Improvement of Pure Lines Commercial data accelerates genetic progress
5
Genetic Improvement of Pure Lines Commercial data accelerates genetic progress
Genetic Improvement of Pure Lines Commercial data accelerates genetic progress
Genetic Improvement of Pure Lines Key components Performance Data Genetic Relationships
6
Genetic Improvement of Pure Lines Relationship based genomic selection
What genetic data do we collect? -DNA information across the animal’s entire genome How is it used? -To see how related animals are genetically What does this mean? -Greater accuracy identifying animals with the highest genetic value!!!
Genetic Improvement of Pure Lines Relationship based genomic selection Without genomic data: the “family tree”
Assume relatedness (r) = 50% for all littermates
Genetic Improvement of Pure Lines Relationship based genomic selection Genotypes determine what proportion the genome animals share
7
Genetic Improvement of Pure Lines Relationship based genomic selection Genotypes determine what proportion the genome animals share Relationship
Genetic Improvement of Pure Lines Relationship based genomic selection Genotypic relationships determined for entire pedigree Relationship
Littermate
Same Sire
Grand-Sire
Assumed
50%
25%
25%
True
62%
9%
40%
Genetic Improvement of Pure Lines Relationship based genomic selection
8
Genetic Improvement of Pure Lines Relationship based genomic selection
Years of Selection
Real world examples of sow production traits
Total Number Born/Litter
9
Sow’s Impact on Pre-Wean Survival
PIC337 x Camborough
Pigs Sold / Sow / Year
Pounds Weaned / Sow / Year
10
Litter Weaning Weight
Pigs Weaned / Sow / Year
Margin / Pig
11
Delivering the Value Genetic Improvement accumulates! Faster growth = heavier pigs in less time Better feed conversion = lower feed costs Lower mortality rates = more pigs to market Economic Value to Commercial Producers! To a 5,000 sow unit producing 125,000 market pigs annually this means…
Delivering the Value
Delivering the Value
12
Delivering the Value Trend = -0.23 / year 5-Year Improvement = -1.14 0.2
288 pigs / year
Mortality Probability Genetic Potential
0 -0.2
5-year advantage: 1425 pigs
-0.4 -0.6 -0.8 -1 -1.2 2007
2008
2009
2010
Pig Off-Test Year
2011
2012 PIC337 x Camborough
Delivering the Value 5,000 sow farm / 125,000 pigs marketed per year 5-Year Advantage in Margin
$1.29 MILLION
Genetic Improvement Continually increasing the profitability of the swine production chain