The second step is to add water for desalination. From the second day after the shrimps enter the pond, the local fresh water in Aksu, Xinjiang is added to the desalination pond regularly and quantitatively every day, and the salinity of the water in the pond is gradually reduced to make the shrimps adapt to the local environment. Zhou Jingsen, the person in charge of the breeding base, said that there are two ponds covering an area of 16 mu in the breeding base. The water is snow water from Tianshan Mountain, and shrimp seedlings are introduced from Hainan, and the breeding method is "shrimp cultivation".
"Shallow culture of sea shrimp" refers to the cultivation of sea shrimp in fresh water. The biggest technical difficulty lies in adapting sea shrimp to the fresh water environment in Xinjiang. After adding fresh water every day for seven to ten days to make the water environment in the desalination pond similar to that in the pond, shrimp seedlings can be put into the pond for breeding.
Clever use of resources
Zhou Jingsen said that the water temperature that Penaeus vannamei generally adapts to is around 25℃. If the water temperature is lower than 18℃, it is not suitable for the growth of Penaeus vannamei. "After the desalination process is over, after the shrimp seedlings enter the Datang, we should monitor the temperature, dissolved oxygen, pH value, ammonia nitrogen and nitrite water environment of the pond every day. Second, skillfully use resources to "build the sea" and turn saline-alkali water into "artificial seawater".
Hongqi Farm, the third division of Xinjiang Production and Construction Corps, is located in the eastern Pamirs. Because of its low terrain, the surrounding underground saline-alkali water is gathered here. The groundwater level is relatively high, and the salinity of water quality is high, and the pH value is generally above 8. A large amount of saline-alkali water can not be recycled by other industries such as agriculture, which has a negative impact on local soil and crop production.