TY JOUR TI INFLUENCE OF THE TEMPERATURE AND pH ON THE LEVEL OF THE ACTIVITYOF THE DIGESTIVE ENZYMES OF RUSSIAN STURGEON(ACIPENSER GULDENSTADTII B.) KW Russian sturgeon KW digestive enzymes KW intestinal epithelium KW adaptation KW temperature KW pH JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Bednyakov, D.. AU Nevalennyy, A.. PY 2013 IS 2013 PB Astrakhan State Technical University