Abstract

The objective of this trial was to verify the occurrence of genotype * environment interaction for milk yield and its impact on the ranking of Holsteins sires among regions in Parana State. Data were analyzed by Bayesian inference, and PL305, for each region, was treated as a different characteristic. The genetic correlations among all regions were low (0,09 to 0,57), being an evidence of genotype * environment interaction. After have been selected 5% best bulls at each region, it was observed that the best bulls at one region weren't the same at another.

E. N Martins, M. C Paula, L. OC Silva, C. AL Oliveira, A. A Valotto, E. Gasparino

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume , , 01.70, 2006
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