TY JOUR TI COMPARATIVE ASSESSMENT OF MORPHOLOGICAL STATE OF TROUT SEEDING AND COMMODITY SPECIES WHEN USING FORAGE WITH PROBIOTIC ADDITIVES KW aquaculture KW rainbow trout KW probiotic KW starting feed KW production feed KW fry KW yearlings JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Aitkaliyeva, A.A. AU Alpeisov, S.A. AU Ibazhanova, A.S. PY 2020 IS PB Astrakhan State Technical University