IMPROVEMENT OF BREEDING AND PRODUCTIVE QUALITIESOF THE ABERDEEN ANGUS BREED IN NORTHERN KAZAKHSTAN

Abstract

The article shows the findings of research material on the comparative characteristic of the growth and development of young Aberdeen Angus stock of different genotypes bred in the Northern Kazakhstan by Kolos LLP of Denisov district, Kostanay region. Male calve and heifer calves were evaluated for productive and breeding qualities. In this manuscript, it was established that the highest assessment scores, according to the research methodology, were observed in the young animals of Group I, which have genetic lineage connections to breeding stock (Canadian selection) and sired by the bull AAR Ten Gauge 1501 7AN425, known for its strong quantitative characteristics.

The research results demonstrated that cows, as the Aberdeen Angus breeding stock, have high resistance to the transmission of offspring hereditary features. A middle position between peers is occupied by the following animals: group II (Estonian selection), according to the bull genotype AAA 17888695; III group (Kazakhstan selection) and according to the genotype of the bull KZP157796788.

The trends identified in relation to traits that characterize the productive and breeding qualities of young Aberdeen Angus stock (young male calves and heifer calves) with various genotypes, suggest that the current livestock within the core farm can serve as replacements for breeding purposes and for achieving beef production.