%0 Conference Article %T THE MILK YIELD OF HOLSTEIN BREED OF COWS AFTER FIRST CALVING %A Zelenina, O.V. %K Holstein breed; first-calf cows; milk yield, fat and milk protein %J SCIENTIFIC SUPPORT FOR LIVESTOCK BREEDING IN SIBERIA %D 2024 %P 3 %I Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS