TY JOUR TI INFLUENCE OF SURFAGON INJECTIONS ON BIOCHEMICAL COMPOSITION OF BLOOD AND STRUCTURAL TRANSFORMATIONS OF OVARIES IN HYBRID FEMALES OF RUSSIAN STURGEON × LENA STURGEON (ACIPENSER GUELDENSTAEDTII BRANDT, 1833 × ACIPENSER BAERII BRANDT, 1869) IN RECIRCULATED AQUACULTURE SYSTEMS KW closed circuit of cultivation KW sturgeon KW biochemical indexes KW osmolality KW hormones KW generative exchange JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Sorokina, M.. AU Geraskin, P.. AU Grigoriev, V.A. AU Dubovskaya, A.. AU Levina, O.. AU Metallov, G.. AU Ponomareva, E.. PY 2018 IS 2018 PB Astrakhan State Technical University