TY JOUR TI Optimization of the cryoprotector composition for the preservation of African catfish reproductive cells KW aquaculture KW cryopreservation KW reproductive cells KW cryoprotectant KW African catfish KW artificial reproduction KW biotechnology JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Firsova, A.. AU Polovinkina, M.. AU Osipova, V.. AU Ponomareva, E.. PY 2023 IS PB Astrakhan State Technical University