CRAWFISH REARING METHOD Russian patent published in 1998 - IPC

FIELD: fishery. SUBSTANCE: method involves placing female "bud" stage spawn carrying crawfish preliminarily caught in natural basins into cassettes for providing their separate keeping; placing cassettes with female crawfish into vessels filled with running water taken from natural basin; holding female crawfish in vessels to larvae pipping stage without feeding in vessels; removing cassettes with female crawfish upon pipping of larvae; placing into vessels plant objects making feed for larvae; subjecting water supplied to vessels to mechanical cleaning and periodically exposing this water to magnetization, with total magnetization time not exceeding 2 hours a day. EFFECT: reduced time between molts, increased yield of commercial product by increased viability of crawfish and adequate processing of water. 1 tbl