Location: Reproduction Research
Project Number: 3040-31000-091-05-R
Project Type: Reimbursable Cooperative Agreement
Start Date: Dec 1, 2012
End Date: Oct 31, 2016
1. Dissect the relationship between genetic markers and age at puberty and reproductive longevity. 2. Assess the effect of the interaction between energy input and SNP variation on age at puberty and sow reproductive longevity. 3. Identify procedures to apply and transfer marker-association results in selection programs to improve sow reproductive longevity.
The approach will be to use high-density genotyping and deep sequencing of expressed genes in gilts with novel phenotypes and differences in estimated breeding values for age at puberty to develop genomic markers that will aide in identification of sows with improved fertility. Markers identified in the resource population will be validated in at least three industry populations and a panel of validated genomic markers will provided to the industry through extension activity so that they may be adopted and used in selection programs to improve lifetime productivity of sows and increase efficiency of pork production.