For citations:
Gorelik A.S., Rebezov M.B., Belookov A.A., Belookova O.V., Kulmakova N.I., Safronov S.L. Assessment of influence of duration of the service period on the milk yield of cows. Agrarian science. 2023;(1):49-52. (In Russ.) https://doi.org/10.32634/0869-8155-2023-366-1-49-52