%0 Journal Article %T ABOUT SOME PECULARITIES OF CHANGING THE PHYSICAL AND CHEMICAL COMPOSITION OF THE COW BREAST SECRET %A Krupin, E.O. %A Shakirov, S.K. %A Zuhrabov, M.G. %A Tagirov, M.S. %K cow, diet, energy, beestings, milk, fat, protein, trace elements %J Vestnik of Kazan State Agrarian University %D 2019 %N 14 %P 4 %I Kazan state agrarian University