TY JOUR TI DAIRY PRODUCTIVITY OF COWS ORIGINING FROM PERSPECTIVE BRANCHES OF THE HOLSTANIAN BREED KW line KW branch KW cow KW milk productivity KW Holstein breed JO Agrobiotechnologies and digital farming AU Shaydullin, R.R. AU Kharisova, C.A. AU Ahmetov, T.M. AU Tenlibayeva, A.S. PY 2023 IS 2 PB Kazan state agrarian University