TY JOUR TI New parameters of lifetime assessment of meat productivity of Dzhalginskiy merino sheep KW phenotypic variation KW factor analysis KW sheep KW meat performance KW animal breeding KW body measurements KW evaluation KW ultrasonography JO Agrarian Bulletin of the AU Krivoruchko, A.Y. AU Yacyk, O.A. PY 2021 IS 207 PB Ural State Agrarian University