Krill crayfish, commonly known as crayfish, has been exploring the artificial breeding of crayfish because of the decreasing natural resources, the shortage of supply in the market, and rising prices. The author adopted a model of crayfish crayfish and crustacea co-cultivation in the same pool, and achieved remarkable results. It is worthy of promotion and application. Now the technology is introduced as follows:

Pond conditions and preparation require a quiet environment, convenient transportation, energy irrigation, water retention and fertility, soil clay or loam. Special requirements for adequate water, good water quality, free from any pollution. The pond area is not limited, 5 acres to 15 acres can be, water depth of 0.8 meters to 1.2 meters, pool slope ratio 1:2 to 3. A 60 cm high calcium plastic plate or aluminum plate is used around the pool to prevent escape. Bamboo and wooden piles are used as supports. The cement culvert or plastic pipe with a diameter of about 40 cm is used as a water inlet in the pool, and the outlet is provided with the same pipe in the opposite corner of the pond. The inlet and outlet must be sealed with a dense barbed wire or plastic net to prevent crabs. Species and crayfish escape. After the harvest of crab species is finished, the silt in the pond is removed. 50 kg of tea seed cake and 100 kg of quicklime per acre are splashed and disinfected to kill predator organisms. However, there is no effect on the parent of the krill crawfish in the pond's cave. .

Transplantation of aquatic plants and snails is the key to the success of breeding. Waterweed and snail are both high-quality bait of crab species and crawfish, clam shells and attachments to avoid enemy invasion, which are beneficial to the purification of water quality, and can also protect the sun from high temperatures in the summer and autumn, which can reduce the water temperature. The method of transplanting is to set about 5 meters of aquaponic community zone around the pond. Every 5 meters in the middle of the pond is fixed with a pile of water and peanuts with bamboo piles and ropes. Put 300 to 500 kilograms of fresh snails per mu before Chingming, let them breed in the pool, as a natural food for shrimps and crabs.

Crab seedlings are purchased and cultivated in the corner of the pond with a net fence of 5% to 10% of the total surface area as a holding pool for crab cultivation. Crab seedlings are cultivated for about 1 month, and when they reach about 6,000 per kilogram, they are folded. In addition to the fence, it allowed it to climb into the pond to grow. Select crabs that breed in the Yangtze River water system (preferably using a simulated natural environment soil pool). The number of crabs per kilogram is about 160,000. After desalination for more than 7 days, the salinity is less than 3 出 when it is discharged. . Crab seedlings require a healthy body, neat specifications, pure color (being beige), swimming and crawling active. Seedlings with crab seedling boxes, air-conditioned vehicles transport.

After the crabs are transported to the poolside, the crab seedlings box is first placed in the pool water for 1 minute to 2 minutes and then lifted. This is repeated 2 or 3 times to adapt the crab seedlings to the water temperature of the cultivation pond. After the crabs are placed, they are fed with feed. The big eye larvae are fed with egg yolk and fed once every 2 to 3 hours. After entering the first batch of young crabs, they are converted into fish cakes and bean cakes and bran, and they can also be fed with crabs. Special opening bait, feeding rate decreased from 100% to 5% to 7%.

Shrimp seedlings and stocking fry stockings can be divided into two modes. One is the spring stocking of larvae, and the stockings of 2 cm to 4 cm in size from 2 months to 5 months in the current year, after 2 months to 3 months. After months of raising, they are caught in batches by the cage; the other is the stocked shrimp in the fall. From September to October, the mature broodstock is stocked at a ratio of 3:1 male and female, and the specification is only 40 grams or more. From April to May, the land cage net began to catch the broodstock that had produced the shrimp, so that the self-produced shrimp was grown in the pond, and the fish was caught and listed. The stocking rate of shrimp seedlings is generally about 5,000 per acre.

In addition to using the natural food in ponds, the daily feeding and management of crab species and crawfish crayfish began to increase the amount of feed from April onwards, and they can feed water grass, wheat, corn, bean cakes, and snails, oysters, clams, and other bait, as appropriate. The combination of fixed feeding and appropriate spraying ensures that all crabs and crayfish can eat feed. From August to September, they mainly feed plant-based feeds. From October to December, they feed more animals. Sex feed. In the hot season, change the water every 10 days and change the water by 1/3 each time. It is necessary to adhere to each patrol pool in the morning and evening, check the water quality, shrimp and crab feeding conditions, the number of aquatic grasses and natural foods, and the completeness of the anti-fighting facilities. The weather should be checked at any time to prevent shrimps and crabs from escaping. In particular, we must guard against predators such as rats, frogs, and birds. During the growing period, lime water is splashed once every 15 days to 20 days, and 5 kg of quick lime is used.

Crab species and crayfish crustaceans are generally harvested from February to March in the following year. The method is to use the dip net to capture the fish under the spray. When most of the crab species are caught, the pool water is drawn and the fish is removed from the pond. The water peanuts are evenly piled on the open space on the poolside, and the water is released in the evening. The next morning the crabs are caught under the water peanuts, which can capture more than 90% of the water 2 times in a row. Krill crawfish are harvested on a regular basis and captured round-by-year. The fishing tools are ground cage nets.

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