Association of Bovine Lymphocyte Antigens with Milk Fat Percentage Differences

Abstract A group of 246 Holstein artificial insemination bulls was examined for associations of bovine lymphocyte antigens with differences in transmitting ability for milk and fat yield and fat percent. The mean fat percentage associated with the w10 allele was .15% greater than the mean for four other alleles. No differences in phenotypic or allelic effects were detected for milk or fat yield.