TY CONF TI MODIFICATION OF METABOLISM IN BROILER CHICKENS UNDER THE INFLUENCE OF AMINO ACID PREPARATIONS KW feeding KW blood KW minerals KW amino acids KW broiler chickens. 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 Zhuravlena, Y.. AU Grechkina, V.. PY 2023 PB TRIA FRC Kazan Scientific Center of RAS