Genetic Eval lab 2-15-12

Genetic Eval lab 2-15-12 - GeneticEvaluation Lab AnS225...

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1 Genetic Evaluation  Lab AnS 225 February 15, 2012
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Genetic Evaluation Genetic evaluation takes place at the  nucleus level Similar basic procedures are used by the  breeding companies Each has implemented their own “secrets” Many are using genetic markers All companies have specific terminal and  maternal lines Genetic information is proprietary 2
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3 STAGES -- Swine Testing And Genetic Evaluation System National Swine Registry (NSR) Duroc, Hampshire, Landrace, Yorkshire Multi-trait animal model Daily across-herd EPDs on association computer Breed specific variance components and adjustments Genetic information can be accessed at www.nationalswine.com
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4 STAGES Program Components Records of ancestry (Pedigree) Performance measurement program EBV estimation program Public access to the genetic rankings Indexes to combine traits that economically influence selection decisions
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5 STAGES Data Procedures Litter data recorded in farrowing house Pedigree information (sire and dam) Date farrowed Number born alive Number after transfer (number allowed to nurse) 21-day litter weight Data sent to NSR office when litter is recorded
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Genetic Eval lab 2-15-12 - GeneticEvaluation Lab AnS225...

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