%0 Journal Article %T The use of multicomplex in the cultivation of black-and-white bulls %A Vasil'eva, M.I. %A Isupova, Y.V. %A Smolyakova, M.I. %K bulls of black-and-white breed, multi-complex, erythrocytes, leukocytes, productivity, slaughter weight, slaughter yield, active acidity %J Agrarian Bulletin of the %D 2022 %N 220 %P 8 %I Ural State Agrarian University