TY JOUR TI EXPERIENCE OF USING POLYVALENT PURIFIED PYOBACTERIOPHAGE (PYOBACTERIOPHAGUM POLYVALENTUM PURUM) IN AQUACULTURE KW pyobacteriophage KW two-year-olds KW red tilapia KW fish-breeding biological parameters KW morphobiochemical blood parameters JO Fisheries AU Zhandalgarova, A.D. AU Bahareva, A.A. AU Grozesku, Y.. PY 2021 IS 2021 PB FSBI "TSUREN"