Two retroviral infections of periparturient Holstein cattle: a phenotypic and genetic study

Journal of Dairy Science
J C DetilleuxD H Kelley

Abstract

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 milk fat plus protein had the highest prevalence of antibodies to bovine immunodeficiency-like virus and the lowest prevalence of antibodies to bovine leukosis virus. Heritability estimates for susceptibility to retroviral infections were close to zero.

References

Dec 1, 1991·The Journal of General Virology·M HorzinekM Koolen
Oct 1, 1989·Veterinary Immunology and Immunopathology·J BrennerZ Trainin
Jul 15, 1993·Proceedings of the National Academy of Sciences of the United States of America·Y DaH A Lewin

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