TY JOUR TI THE INFLUENCE OF TREATMENT-AND-PROPHYLACTIC SPECIMEN ES-2 ON THE FUNCTIONAL STATUS OF TILAPIA HYBRID OREOCHROMIS SPP KW aquaculture KW tilapia KW feeding KW treatment-and-prophylactic specimen KW extract of sapropel JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Shirina, Y.. AU Ableev, D.. AU Kotelnikov, A.. AU Ponomarev, S.. AU Fedorovykh, Y.. PY 2017 IS PB Astrakhan State Technical University