Immunogenic polymorphism in cows of black-and-white breed of CJSC “Kurakinskoe” in Oryol region

Currently, animal breeding is a developed science that covers a wide range of tasks and methods for solving them in animal husbandry. Animal evaluation, selection and selection can be identified as the main selection tools. However, when selecting individuals based on external characteristics (phenotype), the accuracy of the breeding assessment of producing animals is low. Evaluating animals based on genetic markers related to quantitative characteristics is especially important for traits that manifest with age or only in animals of the same sex. To reflect the selection processes occurring in the breed and herd, it is necessary to study immunogenetic polymorphism. In this regard, in the study, alleles of blood groups were studied by 11 systems of loci, as well as the frequency of their occurrence. As a result of research on the herd of ”, it was established that 50% of animals are carriers of antigens CJSC Kurakinskoye QUOTE 15 H',FF, C',G',O4,W,G2,C1 "> . In the studied herd, alleles were found that could potentially be genetic markers of high milk productivity in Black-and-White cows.