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Turkish Journal of Veterinary & Animal Sciences

DOI

-

Abstract

The distribution and types of \alpha-s_1-casein, \beta-lactoglobulin, \beta-casein and \kappa-casein in Holstein cattle were identified. It was determined that the frequencies of \alpha-s_1-casein were 0.958 and 0.042 for \alpha-s_1-Ka^B and \alpha-s_1-Ka^C; \beta-lactoglobulin, 0.516 and 0.484 for \beta-lgn^A and \beta-lgn^B; \beta-casein, 0.995 and 0.005 for \beta-Ka^A and \beta-Ka^B; and \kappa-casein, 0.677 and 0.323 for \kappa-Ka^A and \kappa-Ka^B, respectively. The differences between the empirical and theoretical distributions of the \alpha-s_1-casein, \beta-lactoglobulin, \beta-casein and \kappa-casein genotypes were not significant. The effects of the \alpha-s_1-casein, \beta-casein and \kappa-casein types on milk yield traits were not significant, while the effects of the \beta-lactoglobulin types were significant (p

First Page

447

Last Page

454

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