I. Pond requirements. Tongshui has sufficient water resources, good water quality, and convenient drainage and drainage. The area is generally 3~5 mu. The pool pool should have a certain slope, and in order to avoid the escape of crayfish burrows, the pool pool width should be more than 1.5 meters, and around the pool floor is set to 0.5 meters high, the smooth wall of the escape or escape board. In the middle of the pond some loach was built to create a cave for crayfish. Note that the loach is not connected to the pond. The loach is about 4/5 of the pool length, 1 meter above the width, and 5 to 10 centimeters above the water surface. The depth of the pool should be 0.8 to 1.5 meters, preferably in the middle of the water, surrounded by shoals, and placed on the bottom of the tree roots, bamboo and so on. Strictly sterilize before stocking, 300 to 500 kg of livestock manure per acre. In the pond, water plants that account for 30% of the pond area, such as Vallisneria, Hydrilla verticillata, Eichhornia crassipes, Water Lilies, Water Peanuts, etc., are convenient for crayfish to avoid hostile invasion and habitat during clam shelling.

Second, juvenile shrimp stocking. Juvenile shrimp stocking mainly adopts 3 modes. First, summer stocking, to put the first batch of juvenile shrimp hatched in the same year, stocking time in mid-July, the stocking rate of more than 0.8 cm per acre of juvenile shrimp 3 to 40,000. The second is the stocking in the fall, with the largest size shrimp or shrimp species cultivated in the year, and the stocking time is from mid-August to September. About 1.2 cm of shrimp specifications, put 2.5 to 30,000 per acre. Shrimp species specifications 2.5 to 3 cm, put 1.5 to 20,000 per acre. The third is the winter and spring stocking, generally in December or March to April of the following year, with stocks that do not meet the market specifications of the current year, mainly shrimp, with 100 to 200 fish per kilogram, 1.5 to 20,000 shrimp species, after winter and spring Two seasons of breeding, listed on the market from June to July.

Juvenile prawns are required to have strong physique, complete appendages, no injury, disease-free, and strong activity, and the stocking specifications of the same pond should be the same. Before stocking, first put the juvenile shrimp into the plastic basin, slowly add a small amount of water to the basin until the water temperature in the basin is close to the pool water temperature, and add 3% to 4% of salt water to the bowl for disinfection for 5 minutes. Then slowly prawn into the pool along the edge of the pool. Care should be taken to avoid exposure during stocking. If the shrimps returned from the field are returned to the market and the water is left for a long time, causing some shrimps to become coma, the juveniles should be kept in a basin for a period of 20 minutes before they are stocked again.

Third, feed feeding. Can be directly fed minced fish, snail meat, silkworm cocoons, clams, slaughterhouse waste and rice bran, bean cake, bran, pumpkin, hawthorn and fresh water grass, etc., can also be fed with shrimp feed, but to maintain feed Crude protein content is above 25%.

From July to October, the water temperature is appropriate, which is the peak season of shrimp growth. At this time, the daily feeding amount of shrimp is full, after eating, and no residual bait is taken. Generally, animal feed accounts for 8% to 12% of shrimp body weight and dry feed. Or compound feeds account for 3%~5% of shrimp body weight. The feed was placed in the shallow water near the pool and fed 2 times a day, once in the morning and at night. The amount of feed at night was 60% to 70%. The other seasons were fed once a day, before and after sunset, and the daily feeding amount was 2% to 5% of the shrimp body weight. Crayfish have poor swimming ability, a small range of activities, and an habit of occupying land, so feeding should adhere to timing, fixed-point, qualitative, quantitative. In addition, the feed must be paid attention to when the weather is fine, and more investment, high temperature hot, continuous rainy days or too heavy water quality is less cast; a large number of shrimp when the shell clams, after the clam shell more cast.

Fourth, daily management. Insist on a daily tour of the pond and find problems in a timely manner. Timely topdressing, after 1 week of stocking, 50 to 60 kg of livestock manure per acre is applied. During the middle and later stages of cultivation, 15 to 20 kg of manure is fermented per mu, keeping the pond water green or brown. About 35 centimeters. Change the water frequently, change the water every 5~7 days during the hot season, change the water once every 15~20 days, change the water volume every time by 20%~30% of the pool water, keep the pH value of the pool water at 7 Between ~9, dissolved oxygen is greater than 4 mg/l. The water body is sterilized and improved regularly. Every 15 days, the amount of quicklime is 10-15 kg per day. The whole pool is splashed once. Every month, every cubic meter of water body is bleached or disinfected with 0.5-0.6 g of water and splashed on the whole water pool. In the middle and later months of the cultivation, 5-6 grams of photosynthetic bacteria per square meter of water and 40-60 grams of sediment improver are poured on the water to maintain a good water environment.

V. Fishing listing. Crayfish grow faster and can be harvested after 3 to 5 months of feeding. There are many fishing methods, such as shrimp cages, nets, pull nets or dry pools. The method of catching and catching large catches and catching small catches will not be able to keep the stock of the listed fishery. It should be noted that drugs should be used with caution before they are caught for disease prevention before catching, otherwise they will affect the crayfish catch rate, commercial shrimp quality and aquaculture efficiency.

Dried Fruit

Dry fruit, that is, the fruit whose peel is dry after ripening. Dried fruit is divided into cracked fruit and closed fruit. Most of them are rich in protein, vitamins, lipids and so on. There are many common dried fruits in our life, such as chestnut, Castanea henryi, thunderbolt fruit, hazelnut, cashew nut, walnut, melon seed, pine nut, almond, ginkgo, pistachio, BIGone fruit, desert fruit, Torreya grandis, white melon seed, pumpkin seed, peanut, Padan wood, xiaweiguo, etc.

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