For citations:

Pereryadkina S.P., Galchenko V.A., Lisichenko G.O. Determination of the effectiveness of ovarian ultrasound during synchronization of sexual hunting in cows. International Journal of Veterinary Medicine. 2022;(1):180-185. (In Russ.) https://doi.org/10.52419/issn2072-2419.2022.1.180