In recent years, the technology of light freshwater aquaculture for white shrimps in South America has been successful. The scale of its breeding has rapidly expanded and it has become the fastest growing species in shrimp farming. High-income is bound to be accompanied by high risks. Many farmers are in contact for the first time, but they are still not familiar with the culture technology of P. vannamei. They have used old experience and encountered many problems. In response to the problems encountered by farmers, we have to report our production practices and put forward the following suggestions: 1. To prepare well for the seedlings, we must first do a clear pond disinfection work. Days or so, release lime 150kg per acre, 7 days after the water 30cm, at the same time Shiji fertilizer 150kg, training water quality. At present, the seedling field is generally reduced to 3% of salinity. The shrimp seedlings are preferably intensively cultivated and fully adapted to light and then put into the pond for breeding. Therefore, the ply nets are required to be fenced and generally 50 m2 per mu. The salinity of the holding pool should be consistent with the salinity of the seedlings, and 50kg of magnesium sulfate per ton of salt should be added. To increase the survival rate can be equipped with a corresponding oxygen-increasing equipment, equipped with a gas head per lom2. 2, one-time release of seedlings should be sufficient, to ensure the current yield of cultured white shrimp in South America generally up to 80%, 10,000 seedlings can produce 100kg shrimp. Based on the forecast for this year's market, the price of South American white prawns should be around RMB 20/kg. To effectively resolve market risks, production must be increased. The critical point of profit and loss in the region is about 100kg per mu. Therefore, when the yield per mu exceeds 200kg, the ideal return can be guaranteed. Therefore, when we raise the seedlings, we require the mu to stockpile 20,000 prawns from South America, even if the survival rate is only 50%, and the corresponding yield can be guaranteed. 3. Dilution is gradually carried out to ensure that the survival rate is increased by about 5cm every day after the seedlings are released. After one week, the shrimp and shrimps are fully adapted to freshwater aquaculture. Thereafter, the water can be added periodically as the temperature increases, and when the temperature is high in summer, the aquaculture water level should be more than 1.5cm. . 4, to master a reasonable amount of feeding, and regular feeding of antiviral drugs Penaeus vannamei before the breeding of the feeding requirements of less and fine, in addition to fertilizing the water quality to ensure that the shrimp when the bottom of the pond have enough basic food, but also should be fed Amount of high-grade food (such as shrimp, BP, etc.). After a week of adapting to the environment, the shrimps are mainly fed with crushed material. At this time, Quanchiposa should be splashed to ensure that the shrimp can obtain sufficient food. When the size of Penaeus vannamei reaches 3cm, it should be fed with pellet feed. At this time, feeding should be set on the shallow water around the pond to observe the food status of Penaeus vannamei. Before the specification reaches 7cm, feed 2 times a day (generally 8-9am, 4-5pm); after the specification reaches 7cm, feed 3-5 times a day. To enhance the disease resistance of Penaeus vannamei. Efficient and non-residue drugs should be fed regularly, plus allicin, immune polysaccharides, EZO, etc. 5. Equipped with aeration facility, and start up regularly in summer. When the per mu yield of white prawn exceeds 200kg, corresponding aeration facilities should be provided. Generally, a 1.5kW aerator is provided for every 3 mu. In the peak season of summer and autumn, the system should be turned on every day at about 2 o'clock in the morning. When the weather is hot and humid, it can be turned on in advance. The boot time should be maintained at more than 1 hour. When the weather is fine, it can be turned on in the afternoon to keep the dissolved oxygen in the water evenly distributed. 6, do not frequently change the water, with microbial preparations to regulate water quality in the peak season of growth, due to a large number of feed feeding, water pollution is more serious, the conventional method is to change a lot of water, which requires ample source, and the current serious water pollution, Difficult to guarantee. In practice, we often use the emblem of biological agents to control water quality, the effect is very good. The emblem biological preparation is mainly composed of photosynthetic bacteria. It can effectively decompose organic matter, reduce the concentration of ammonia, nitrite, and hydrogen sulfide in the water and keep the water quality stable. Generally, the dosage per hectare (water depth l.5m) is 3 to 5 kg, and one month of spray 2 3 times. 7. Fishing should be carried out several times in batches to increase production. The stocking of Penaeus vannamei in the region is mostly at the end of May and early June. In August, part of the dumplings has reached the commercial specifications, and at this time, the market price is relatively high and can be caught in the cage. In actual production, we are caged at 4 o'clock in the morning and put away in an hour. The quantity can be determined based on the sales volume, and generally a cage can receive about 5kg. The prawns of white prawns can be placed in cages equipped with aerators. The small-size shrimps can be kept in ponds for further cultivation. Large catching and keeping small can increase yields and achieve better economic benefits.