Pond conditions. Nursery ponds should not be large, suitable for 1-2 acres, water depth of 1-1.2 meters, slope ratio 1:2.5-3, 10-15 cm mud pool bottom. In addition to the field disinfection. 15 days before stocking, drain the pond water, use 75-150 kg of lime to clear the pond, and fill the water 80-100 centimeters after one week. Then, use tea cake with 40-50 kg per acre to splash the whole pond or bleaching powder 15-25 grams per acre. Mi Quanchi is splashed to kill the enemy's harmful organisms and pathogens, and it can be stocked after being tested for 5 to 7 days without toxicity. Rehydration before restocking, water 80-100 centimeters, inlet 80 mesh sieve with double-layer bandage filter to prevent rivers from stocking organisms into the pond. Basic feed cultivation. 400-600 kilograms per acre of fermented organic manure was applied as a base fertilizer in the pond, and 1-2% lime was added for disinfection during fermentation. The amount of base fertilizer was increased in Xinkaitang, and old ponds were reduced as appropriate. After hatching, shrimps are topdressed once every 4-5 days (100-150 kg) to maintain the density of water plankton plankton and ensure the supply of live bait during the seedling period. The selection and cultivation of broodstock. In April-September (April-July, the peak period of shrimp breeding), the acre should be held at the end of the egg-bearing shrimp (male and female), 10 kg or mus, and 4-5 kg ​​of eggs should be released. Put some branches, roots or nets in the pond after the shrimp is put in, so that the brooders can climb and inhabit. During the breeding period, broodstock should be properly fed palatable condiment, including chopped fish, gill nets, snail meat and Maimaifu, rice bran, etc., and the daily feeding amount is 0.5-1.0 kilograms per mu. The egg-holding shrimp can also adopt the pond net cage to cultivate the seedlings. The cage mesh net is set 0.5 cm, the area is 6-10 square meters, the net height is 1-1.2 meters, and the tank is set with 30-40% water, and the stocking density is per square. 0.5 kilograms, an acre of ponds is placed incubator one (Mu pond holding eggs 3-5 kilograms), daily feeding amount (grain) accounted for 3 - 4% of egg weight shrimp, keep the flow of water inside and outside the box.