A group of 120 progeny tested Holstein Friesian bulls from 7 Italian A. I. Centers were examinated to study the possible associations between histocompatibility antigens and breeding values. Histocompatibility antigens have been determinated by microlimphocytoxicity test using 115 sera detecting 17 antigens. Only ten internationally recognised Workshop antigens have been identified in the sample. The breeding values for milk, fat and protein yield, fat and protein percentage have been related to BoLA alleles. W10 seems to have a negative effect on milk yield, W6 a negative effect on Kg proteins.

M. Z Casati, G. Ceriotti, M. Longeri, M. Polli, T. M Gliozzi

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume XVI. Poultry, fish and horse genetics and breeding, growth and reproduction, immune response and disease resistance., , 489–492, 1990
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