Toxicity preventive aquaculture method for penaeus japonicus

Abstract

The invention provides a toxicity preventive aquaculture method for penaeus japonicus. The toxicity preventive aquaculture method includes A, removing sludge at the bottoms of aquaculture ponds, spreading quicklime and exposing the quicklime to the sun for 2-3 days; B, laying mixed soil with the thickness of 10 cm at the bottoms of the aquaculture ponds and then exposing the mixed soil to the sun for 2-3 days; C, injecting water into the aquaculture ponds until the depth of the water reaches 50-60 cm, spreading plant ash, cow dung and calcium-magnesium phosphate fertilizers into the aquaculture ponds, allowing the water, the plant ash, the cow dung and the calcium-magnesium phosphate fertilizers to stand still for 10-15 days and then injecting water into the aquaculture ponds until the depth of the water reaches 1.5-1.8 m; D, releasing young penaeus japonicus into the aquaculture ponds and filling the aquaculture ponds with ozone; E, spraying sodium dichloroisocyanurate aqueous solution into the aquaculture ponds at the intervals of 7-10 days in 1-2 months after the young penaeus japonicus is released into the aquaculture ponds so that the concentration of sodium dichloroisocyanurate in the aquaculture ponds is 0.1-0.4%, and continuously spraying the sodium dichloroisocyanurate aqueous solution by 2-3 times. The mixed soil comprises kaolin and fine gravel which are uniformly mixed with each other according to a mass ratio of 1:2. The toxicity preventive aquaculture method has the advantages that the occurrence rate of diseases in aquaculture procedures can be effectively reduced, the aquaculture survival rate can be increased, and the aquaculture quality can be improved.

Description

technical field [0001] The invention relates to aquatic product cultivation, in particular to a poison-proof cultivation method for Japanese prawns. Background technique [0002] The distribution of Penaeus japonicus is very wide, from the Red Sea, the east of Africa to the coasts of Korea and Japan, and there are a large number of distributions along the coast south of the Yangtze River in my country. Japonica prawns are tender and nutritious, suitable for breeding in areas with high salinity, and are resistant to low temperature and dryness. They are suitable for selling fresh and live shrimp, and the price is relatively high. It has become an important breeding target in many countries and regions. In 1970, Taiwan, China began to test the culture of Penaeus japonicus. The culture of Penaeus japonicus in the coastal areas of mainland my country started relatively late. Since 1988, the culture of Penaeus japonicus has been started in Zhejiang, Fujian and Guangdong provinces...

AI Technical Summary

Problems solved by technology

[0003] The traditional Japanese prawns are mainly cultured in autumn in the South China Sea, but Japanese shrimp farming is difficult, the growth rate is slow, it is not resistant to high temperature, and there are frequent diseases, which leads to low production of Japanese prawns and restricts the further development of the industry.

Images