The milk productivity results and nutrients costs for receiving one kilo of milk while feeding cows with probiotic “Levisell SC” are given in the article.
red-marked breed, probiotic, milk productivity, forage consumption
1. Ovsyanikov A.I. Osnovy opytnogo dela v zhivotnovodstve. - M.: Kolos, 1976. - S. 39-86.



