For citations:

Lakhov S.D., Petrova Y.V., Lugovaya I.S., Belkin E.A. Use of the drug Activiton for the prevention of ketosis and postpartum complications in fresh cows. Agrarian science. 2020;(7-8):21-23. (In Russ.) https://doi.org/10.32634/0869-8155-2020-340-7-21-23