%0 Conference Article %T INFLUENCE OF THE AGE OF THE FIRST FRUITFUL INSEMINATION ON THE PRODUCTIVE LONGEVITY OF COWS %A Fedoseeva, N.A. %A Kochetkova, M.S. %K heifers, cows, live weight, frequency of inseminations, productive longevity, measurements, black and white breed %J PROCESS MANAGEMENT AND SCIENTIFIC DEVELOPMENTS. OCTOBER, 13, 2021. BIRMINGHAM, UNITED KINDOM. %D 2024 %P 2 %I AUS PUBLISHERS