TY  JOUR
TI  PRODUCTIVE LONGEVITY OF COWS OF BLACK-MOTLEY BREED, DEPENDING ON THE FIRST INSEMINATION AGE AND LEVEL OF MILK YIELD FOR THE FIRST LACTATION
KW  black-motley breed
KW  age of first insemination
KW  milk yield for the first lactation
KW  productive longevity
KW  lifetime milk production
KW  service period
KW  MOP
KW  KVS.
JO  Vestnik of Kazan State Agrarian University
AU  Rudishina, N.M.
AU  Shtyreva, I.V.
PY  2017
IS  11
PB  Kazan state agrarian University