Article
Two retroviral infections of periparturient Holstein cattle: a phenotypic and genetic study.
Journal of dairy science - 1 Oct 1995
Detilleux J C, Kehrli M E, Freeman A E, Whetstone C A, Kelley D H
Abstract excerpt
Environmental and genetic factors affecting prevalences of antibodies to bovine leukosis virus and bovine immunodeficiency-like virus were studied on 137 periparturient Holstein cows selected for milk production. Environmental effects were obtained by logistic regression, and genetic parameters were determined using threshold animal models. Cows selected for high predicted transmitting ability for kilograms of...
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