Article
Factors that cause genotype by environment interaction and use of a multiple-trait herd-cluster model for milk yield of Holstein cattle from Brazil and Colombia.
Journal of dairy science - 1 Aug 2004
Cerón-Muñoz M F, Tonhati H, Costa C N, Rojas-Sarmiento D, Echeverri Echeverri D M
Abstract excerpt
Descriptive herd variables (DVHE) were used to explain genotype by environment interactions (G x E) for milk yield (MY) in Brazilian and Colombian production environments and to develop a herd-cluster model to estimate covariance components and genetic parameters for each herd environment group. Data consisted of 180,522 lactation records of 94,558 Holstein cows from 937 Brazilian and 400 Colombian herds. Herds...
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