TY JOUR TI THE TRACE ELEMENTS VARIOUS SOURCES USE IN DIETS IN COMBINATION WITH AND WITHOUT PHYTASE AND THEIR EFFECT ON ZOOTECHNICAL INDICATORS AND INTESTINAL MICROBIOCENOSIS OF BROILER CHICKENS KW mineral supplement KW phytase enzyme KW live weight KW productivity KW intestinal microbiocenosis JO Bulletin of KSAU AU Zhilochkina, T.I. AU Yegorov, I.A. AU Mkrtchyan, M.E. AU Laptev, G.Y. AU Ilina, L.A. PY 2023 IS 0 PB Krasnoyarsk State Agrarian University