Article
Restricted maximum likelihood estimation of variance components from field data for number of pigs born alive.
Journal of animal science - 1 Nov 1993
See M T, Mabry J W, Bertrand J K
Abstract excerpt
Variance components for number of pigs born alive (NBA) were estimated from sow productivity field records collected by purebred breed associations. Data sets analyzed were as follows: Hampshire (n = 13,537), Landrace (n = 10,822), and Spotted (n = 3,949). Variance components for service sire, sire of sow, dam of sow, and residual effects on NBA (adjusted for parity) were estimated. The single-trait model...
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