Article
Maternal effects on traits measured during postweaning performance test of swine from four breeds.
Journal of animal science - 1 Jun 2002
Johnson Z B, Chewning J J, Nugent R A
Abstract excerpt
The objective of this study was to investigate the importance of maternal genetic effects on postweaning performance traits of Yorkshire, Landrace, Duroc, and Hampshire breeds of swine. Data consisted of performance test records collected in a commercial swine operation from 1992 to 1999. Boars from 60% of the litters were culled at weaning based on a combination of maternal and performance indexes that differed...
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