Blood group systems and biochemical values of Kalmyk breed of cattle bred in the Republic of Sakha (Yakutia)

The analysis of antigens in blood group systems of imported cattle of Kalmyk breed was presented in the study. The research objective was studying anti-gene structure of cattle of Kalmyk breed bred on the territory of the Republic of Sakha (Yakutia). Totally 70 heads of Kalmyk breed of cattle were investigated on the farm “Krestyakh” of Suntar district in the Republic of Sakha (Yakutia). Blood groups were identified by immunogenetic tests with a standard practice on the reaction of agglutination with monospecific serums. The research revealed 36 antigenic factors. In EAB system 19 antigens were identified: G2, O1, O2, O3, G’’, G’, Q’, B1, D’, E2’, E3’, Y1, Y2, A1’, A2’, T1, T2, Y’, I2. The most common antigens in EAB system were E3’ with the frequency of 18.8 %, Y1 with the frequency of 13.7 % and E2’ with the frequency of 10.2 %. In the analysis of tested animals 2 heifers of 2017 and 2018 years of birth were not the descendants of seed bulls. From preferable erythrocyte antigens-markers of high growth and beef production with the high frequency of occurrence was the antigen E3’ (0...