| Summary: | The formation of immunogenetics as a science was the result of numerous studies on the study of blood groups and other polymorphic systems, the results of which are successfully applied both in animal husbandry and in animal breeding. Modern biotechnological methods used to analyze blood groups enable us to determine the true origin of animals. To determine the correctness of the breeding processes occurring in the breed, the antigenic composition of blood groups, which are also used to study the reliability of origin, needs to be studied. The results obtained make it possible to analyze genetic similarity, determine the level of polymorphism and the nature of structural changes in the result of breeding work. Also, by analyzing the distribution of the frequency of occurrence of antigens, it is possible to determine the genetic distances and genetic similarity of breeds and lines among themselves [1].
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