Associations between casein haplotypes and milk production traits were studied in Finnish Ayrshire dairy cattle. Genotyping of casein loci for over 300 Al bulls revealed e g haplotypes three of which were tested within six heterozygous sires against estimated breeding S " o f ^ ^ s T h . results M o m ,ha. in one of .he six M M M l . ™lkeb,Mv. fa. oontem. milk yield and protein content were associated with the haplotypes.

R. Velmala, K. Elo, J. Vikki, Esa A Mäntysaari, A. Maki-Tanila

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 19. Selection and quantitative genetics; growth; reproduction; lactation; fish; fiber; meat., , 348–350, 1994
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