For citations:
Abilov A., Dunin M., Pridanova I., Ushakov S., Seidakhmetov B. Hormonal biochemical monitoring at bull-producers of different breeds in the conditions of the Central Black Economic District. Genetics and breeding of animals. 2021;(4):100-107. (In Russ.) https://doi.org/10.31043/2410-2733-2021-4-100-107