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Journal of Dairy Science Vol. 76 No. 12 3778-3784
© 1993 by American Dairy Science Association ®
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Associations of Bovine Lymphocyte Antigens with Milk and Meat Production Traits of Norwegian Cattle

C. M. Mejdell 1, H. Solbu 2, R. A. Oliver 3, E. F. Arnet 4, and Ø Lie 4

1 Department of Animal Genetics, Norweglan College of Veterinary Medicine, Oslo, Norway
2 Department of Animal Science, Agricultural University of Norway, As, Norway
3 Agricultural and Food Research Council, Institute of Animal Physiology and Genetics Research, Edinburgh Research Station, Roslin, Edinburgh, Scotland
4 Department of Animal Genetics, Norwegian College of Veterinary Medicine, Oslo, Norway

Bovine lymphocyte antigens of class I were defined for 434 AI bulls of Norwegian Cattle, which is a dual purpose breed. The antigens w16, A2, and A8 occurred at highest frequencies. A gene substitution model was used to compare bovine lymphocyte antigens with total breeding value and breeding values for milk yield, milk fat percentage, milk protein percentage, and meat production. Several bovine lymphocyte antigens were significantly associated with the traits in question: low fat percentage was associated with A8, A10(w50), and A11; high milk protein percentage with A13; and low meat production with the rare antigen w1. Associations of the bovine lymphocyte antigens and milk yield were not significant.

Key Words: bovine lymphocyte antigens class I • production traits • Norwegian cattle

Submitted on December 7, 1992
Accepted on July 21, 1993






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Copyright © 1993 by the American Dairy Science Association ®.