TY  JOUR
TI  SERVICE-PERIOD INFLUENCE ON BLACK-MARKED BREED COWS MILK PRODUCTIVITY
KW  dairy productivity
KW  service period
KW  black-marked breed cows
JO  Bulletin of KSAU
AU  Chasovshchikova, M.A.
PY  2012
IS  
PB  Krasnoyarsk State Agrarian University