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United States Department of Agriculture

Agricultural Research Service

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Research Project: Translational Genomics for Improving Sow Reproductive Longevity

Location: Reproduction Research

Project Number: 3040-31000-091-05
Project Type: Reimbursable

Start Date: Dec 01, 2012
End Date: Oct 31, 2015

Objective:
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.

Approach:
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.

Last Modified: 11/27/2014
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