The fry began to feed on the 2nd to 3rd days after hatching. Before breeding, prepare enough bait according to the planned number of fry. The most nutritious and palatable bait is leeches, which can be purchased, distributed, or cultivated. Pits, cement ponds, etc. can all be used to grow leeches. To cultivate leeches in leeches, 400 grams of quicklime, 40 grams of chicken manure, 200 grams of soy sauce, and 40 grams of water are poured per square metre. After 3 days, a small amount of leeches are placed. After the 15th day thereafter, the otters began to breed. Breeding leeches is started two weeks before hatching, and the time for the fish to start feeding exactly coincides with the time the otters begin to multiply.
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