FIELD: artificial fish breeding. SUBSTANCE: method involves providing concentration of violet preparation K within the range of 0.1-0.3 mg/l during spawn incubation period to embryonic stage at which embryos begin to turn. Method allows fish product loss to be reduced by improved spawn incubation process through controlling saprolegniosis and using spawn with low fertility (below 50%) for incubation. EFFECT: increased efficiency in artificial fish breeding and improved fish yield. 1 tbl, 3 ex
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