FIELD: pisciculture.
SUBSTANCE: the method deals with growing up larvae under industrial conditions at feeding for 2-3 wk in trays and breeding places directly on the pond, releasing grown-up larvae into the pond for finishing and application of aeration equipment in winter and catching commercial fish. Larvae should be released into the ponds at high quantity of small-sized fish, for example, top-water fish, whitefish larvae should be grown up to 20-21 mm length and above 40 mg body weight, oxygen content in aeration area should be maintained not less than 4 mg/cu. dm. Commercial this year's broods should be caught at the end of finishing period, as for 2-yr-old ones under conditions of open water - during the second year of raising or next winter. The innovation enables to decrease the number of small-sized poorly-maturing fish and provides conditions for raising commercial fish.
EFFECT: higher efficiency of fish raising.
1 ex
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