CORRELATION BETWEEN GENETICS FEATURES OF KALMYK AND RUSSIAN HORNLESS BREEDS CALF BULLS WITH MEAT PRODUCTIVITY
DOI:
https://doi.org/10.31857/2500-2082/2022/5/53-57Keywords:
genes, alleles, meat productivity, bulls of the Kalmyk and Russian polled breedsAbstract
The article presents the material on the assessment of genetic characteristics and productive qualities of bulls of the Kalmyk and Russian polled breeds in a comparative aspect. Scientific research was carried out in the breeding reproducer for the breeding of the Russian polled breed "VolgoDonAgro" in the Volgograd Region. Two groups of 8-month-old bulls of the Russian polled breed and Kalmyk bulls of the Aita type were selected, 25 heads each. Bulls-analogues were selected taking into account age and breed. The advantage of the bulls of the Russian polled breed in comparison with their peers of the Kalmyk breed in terms of the content of DNA markers responsible for the formation of meat productivity has been proved. A significant superiority of the meat productivity of bulls of the Russian polled breed compared to the Kalmyk analogues was established: an increase in slaughter yield by 1.44%, pulp yield – 1.78, meat index – 0.59%.