Article
Genetic parameters for fertility traits assessed in herds divergent in milk energy output in Holstein-Friesian, Brown Swiss, and Simmental cattle.
Journal of dairy science - 1 Dec 2020
Martinez-Castillero M, Toledo-Alvarado H, Pegolo S, Vazquez A I, de Los Campos G, Varona L, Finocchiaro R, Bittante G, Cecchinato A
Abstract excerpt
In this study, we aimed to investigate differences in the genetics of fertility traits (heritability of traits and correlations between traits in divergent environments) in dairy cows of different production levels defined on the basis of the herd-average daily milk energy output (herd-dMEO). Data were obtained from Holstein-Friesian (n = 37,359 for fertility traits, 381,334 for dMEO), Brown Swiss (n = 79,638 for...
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