The artificial culture of Penaeus vannamei grows fast, and it can reach the market specification in 60 days. The salt tolerance range is wide (0-40 ‰), and various culture modes such as pure fresh water, brackish water, seawater and the like can be adopted, and the fish can grow from natural sea areas to fresh water ponds, breaking geographical restrictions, and having high temperature resistance and strong disease resistance; The diet is miscellaneous, and the requirement for feed protein is low, and 35% can meet the growth needs. It is a high-quality variety of "light-cultured shrimp", which expands the breeding area. When cultivating Penaeus vannamei, the size of shrimp fry should be more than 2 cm, the diluted fry should be 3-5 mu in the pond, the water depth is about 1.5 m, the seedling release time is at the end of May and the beginning of June, and the water temperature is above 20℃. Under general breeding conditions, 20,000 shrimp seedlings should be put in each mu and 500- 100 flowers should be raised.

First of all, there are two ways of polyculture.

1, Penaeus vannamei polyculture freshwater pomfret. Generally, 50,000-80,000 Penaeus vannamei fry, 0/50-200 freshwater pomfret/kloc and 0/00 silver carp fry/kloc are put into each mu.

2. Penaeus vannamei is mixed with grass carp and carp. Generally, per mu, Penaeus vannamei fry 1000 ~ 30000, grass carp 500, carp 300 and silver carp fry 1000 are put in.

Second, the advantages of interplanting Penaeus vannamei in fish ponds

1, and the requirements for pond conditions are not high. As long as the sediment is not very deep, the freshwater fish pond can be interplanted with Penaeus vannamei, and there is no need to specially transform the original pond.

2. Small investment, quick effect and high income. Interplanting Penaeus vannamei in freshwater ponds can effectively use the culture space. Interplanting Penaeus vannamei in fish ponds can effectively inhibit the reproduction of rotifers, especially when it is less than 5 cm, the effect is quite obvious and the pesticide cost can be reduced.

Third, the benefits of proper fish culture in shrimp ponds. Because of the activities of fish, the vitality of water quality is increased, the water environment conditions are improved, the composition of phytoplankton population is changed, and the most suitable environmental conditions for shrimp growth are created. Fish can attack sick shrimp, reduce the rapid propagation and spread of pathogens, control the increase of pathogens, make healthy shrimp immune and increase the disease resistance of healthy shrimp.