TY JOUR TI FATTY ACID COMPOSITION OF MILK FAT OF PUREBRED AND CROSSBRED FIRST-CALF HEIFERS KW cattle breeding KW first-calf heifers KW black-and-white breed KW German and Dutch Holsteins KW crossbreeds KW milk KW fatty acid composition KW gas chromatography JO Bulletin of KSAU AU Kosilov, V.I. AU Yuldashbaev, Y.A. AU Kadralieva, B.T. AU Nikonova, E.A. PY 2023 IS 0 PB Krasnoyarsk State Agrarian University