For citations:

Gamko L.N., Pilyughaytsev D.A., Lemesh E.A. The influence of the smectite tripoli natural mineral additive in the grain feed mixture on the calves productivity during milk period. Agrarian science. 2019;(1):27-30. (In Russ.) https://doi.org/10.32634/0869-8155-2019-321-1-27-30