%0 Journal Article %T EFFECT OF PREMIXES AND BOLUSS ON PRODUCTIVITY AND QUALITY OF COW’S MILK %A Krupin, E.O. %A Shakirov, S.K. %A Kashaeva, A.R. %K cow, premix, bolus, vitamins, minerals, milk, productivity, fat, protein %J Vestnik of Kazan State Agrarian University %D 2020 %N 15 %P 4 %I Kazan state agrarian University