What are the culture techniques of Penaeus vannamei? What are the prospects for breeding?

At present, people's requirements for meat diet are becoming more and more stringent, and there are more and more varieties. Shrimp has slowly stepped onto the table of people. The yield of Penaeus vannamei is the highest among the prawns, and more and more people raise Penaeus vannamei. What are the culture techniques of Penaeus vannamei? What are the prospects for farming?

I. Culture techniques of Penaeus vannamei

1. Culture site: the cultivation of Penaeus vannamei should choose the site with flat terrain and muddy or sandy bottom is the best. It is also required that the quality of sea water and fresh water is pollution-free and that there is an adequate supply of electricity. The bottom of the aquaculture pond should be flat and solid, the bottom is fruit-shaped and tilted to the center, the bottom of the pond is equipped with drainage pipes, and the pool depth is preferably 2 to 2.5 meters.

two。 Disinfection and sterilization: before releasing shrimp seedlings, it is necessary to disinfect and sterilize shrimp ponds to ensure the healthy growth of Penaeus vannamei. One month before the shrimp fry is released, quicklime should be put into the shrimp pond for disinfection, and appropriate bleach should be added to the shrimp pond a week before release. A certain amount of water quality fertilizer can also be added to the shrimp pond to provide a growing environment for Penaeus vannamei.

3. The choice of shrimp fry: Penaeus vannamei is born in South American salt water, and freshwater culture is mainly used in China, so it is necessary to choose desalinated shrimp fry. It is also necessary to choose varieties with large market demand according to the needs of the market.

4. Regulating water quality: it is very troublesome to change water in the process of cultivating Penaeus vannamei, so it is necessary to manage the water quality. Such as the method of changing water to reduce feed to keep the water quality clean, the changes should also be adjusted with the season, so as not to affect the growth of shrimp.

5. Feeding: Penaeus vannamei was fed twice a day in the early stage, 3 times a day in the middle of culture and 4 times a day in the later stage of culture. Sprinkle evenly on the edge of the pond when feeding.

6. Disease control. Once the disease of Penaeus vannamei is very difficult to recover, so it is mainly to prevent. Dibromohydantoin compound disinfectant is mainly used every 10 to 15 days, the dosage of each cubic meter of water is 0.1 grams, and the dissolved water is sprinkled evenly throughout the pool. ''

7. Capture: Penaeus vannamei has been cultured for 65 to 80 days, reaching 60 to 70 grams can be put on the market. Can be caught with shrimp cage nets, can also be caught in dry ponds.

2. Prospect of Penaeus vannamei culture

1. Market price: at present, there are many places in China where there are breeding bases for Penaeus vannamei, and the market price is not cheap. The price of shrimp is related to many factors. Such as the culture area, the size of shrimp, the freshness of shrimp. The market price is generally between 25 yuan and 50 yuan per jin.

two。 Market demand: Penaeus vannamei is currently the best-selling seafood in the market. At present, domestic consumption is relatively large, and there is a very high export volume. With the development of fresh logistics, the market will further expand, and the demand will continue to rise.

3. The cost of breeding. At present, the culture cost of Penaeus vannamei is relatively high, because the current culture technology is not very perfect, and some techniques often appear. The cost of pond management and transformation, plus the cost of equipment, feed, management, etc., is about 15000, and the cost of farming per mu is about 14000.

4. Culture output: at present, the cultivation of Penaeus vannamei twice a year can produce more than 300,000 prawns, weighing more than 3,000 jin.

5. Breeding prospects: at present, the market demand for shrimp is rising, the market of Penaeus vannamei is often in short supply, and the prospect of breeding is very good.

The culture technology of Penaeus vannamei is constantly developing, and the yield of shrimp culture will be higher and higher in the future. And the demand for shrimp is also on the rise, and the prospect of breeding is still very considerable.