TY CONF TI ASSESSMENT OF THE QUALITY OF EGGS OF CROSS COBB-500 BROILER LAYERS KW broiler layers KW eggs KW Butofan KW physical and chemical indicators. 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 Moysevich, V.. AU Kochergina, E.. AU Kletikova, L.. PY 2023 PB TRIA FRC Kazan Scientific Center of RAS