The large surface net enclosures the crabs, and within 7 days to 15 days after the crabs are stocked, the crab species are not adapted to the large water ecological environment, and often stay up all day and night to cluster and turn counterclockwise along the edge of the net, or to the bottom. The mud turned up and drew holes under the gabion, which could easily cause a large number of crab species to escape. At the same time, due to long-term crabs do not eat, physical weakness, easy physical failure and death, affecting the survival rate of crab species. Through temporary raising, the crab species can recover their strength and adapt to the new environment of the water body. This will increase the survival rate of crab species and the rate of crab rearing.
The specific method is to set up one or two holding areas with an area of ​​2 mu to 4 mu for every 100 mu of water surface, which is a round or oval double-layered fence structure. Transplanting water peanuts, Elodea, Aquatic plants, such as Vallisneria, have a coverage of 60% or more. The crabs were planted in the holding area and were fed twice a day. Each feeding site was evenly distributed. The bait was mainly eaten by small crabs, snails, animal blood clots, cocoons and other animal foods. After 15 days to 20 days of storage, the crab species can basically adapt to the new water environment. Then the holding area is removed and the crab species are put into large water bodies for cultivation.
The specific method is to set up one or two holding areas with an area of ​​2 mu to 4 mu for every 100 mu of water surface, which is a round or oval double-layered fence structure. Transplanting water peanuts, Elodea, Aquatic plants, such as Vallisneria, have a coverage of 60% or more. The crabs were planted in the holding area and were fed twice a day. Each feeding site was evenly distributed. The bait was mainly eaten by small crabs, snails, animal blood clots, cocoons and other animal foods. After 15 days to 20 days of storage, the crab species can basically adapt to the new water environment. Then the holding area is removed and the crab species are put into large water bodies for cultivation.
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