%0 Journal Article %T TRANSFORMATION OF PROTEIN AND ENERGY FOOD IN PROTEIN, AND ENERGY %A Iskhakov, R.S. %K bulls, hybrids, conversion, protein, Black-and-white, Aberdeen-Angus, Limousin %J Bulletin Samara State Agricultural Academy %D 2016 %N 1 %P 3 %I Samara State Agrarian University