Article
Genetic parameters for first lactation test-day milk flow in Holstein cows.
Animal : an international journal of animal bioscience - 1 Jan 2012
Laureano M M M, Bignardi A B, El Faro L, Cardoso V L, Albuquerque L G
Abstract excerpt
Genetic parameters for test-day milk flow (TDMF) of 2175 first lactations of Holstein cows were estimated using multiple-trait and repeatability models. The models included the direct additive genetic effect as a random effect and contemporary group (defined as the year and month of test) and age of cow at calving (linear and quadratic effect) as fixed effects. For the repeatability model, in addition to the...
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