TY JOUR TI CHANGES IN THE MICROFLORA AND HISTOLOGICAL STRUCTURE OF THE STERLET INTESTINE DURING FEEDING WITH AQUAFOODS WITH HAPRIN KW haprin KW sturgeon KW juvenile sterlet KW intestinal histology KW intestinal microflora KW fish feeding KW fish meal replacement JO Vestnik of Omsk SAU AU AGAPOVA, V.N. AU RANDELIN, D.A. AU AGAPOV, S.Y. AU LIPOVA, E.A. AU LIPOVA, E.A. PY 2025 IS 59 PB FSBEI HE Omsk SAU