TY  CONF
TI  ANALYSIS OF ECONOMICALLY USEFUL CHARACTERISTICS OF FIRST-BROWN HEIFERS DEPENDING ON THE AGE OF FIRST INSEMINATION
KW  age of first insemination
KW  first heifer
KW  service period
KW  milk production
JO  XIII All-Russian scientific-practical conference of young scientists «Achievements and prospects of development of the Russian agriculture", dedicated to the memory of R.G. Gareev
AU  Vasil'eva, M..
AU  Grachev, V..
PY  2023
PB  TRIA FRC Kazan Scientific Center of RAS