Breeding values in genetic evaluation are compared between conventional animal model BLUP, single-step BLUP, and revised bivariate blending after genomic BLUP. The data are extracted from the production trait evaluation of Nordic Red dairy cattle. Genotyped bulls with daughters are used as training animals, and younger genotyped bulls and producing cows as candidate animals. Breeding values estimated with the bivariate blending method are shown to match the single-step values. Computationally bivariate blending method is, however, lighter than the single-step method and, thus, can be used also with larger population sizes.

Matti Taskinen, Esa A Mäntysaari, Gert P Aamand, Ismo Strandén

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume Genetic Improvement Programs: Selection using molecular information (Posters), , 507, 2014
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