Pond and method for culturing penaeus japonicus through mulching film sand bed self-purification

Abstract

The invention relates to a pond and a method for culturing penaeus japonicus through mulching film sand bed self-purification. The pond comprises a mulching film pond, pillars, a perforated PVC (Poly Vinyl Chloride) plate, a perforated PVC pipeline, a screen tulle, a protein separator and an ozone generator, wherein a plurality of perforated PVC water inlet pipes are uniformly paved at the bottom of the mulching film pond; perforated PVC screen plates cover the bottom of the mulching film pond by taking cement concrete as the pillars; the screen tulles of 60 meshes cover the perforated PVC screen plates, and a plurality of perforated PVC air inlet pipes are uniformly paved on the screen tulles; an upper covering sand bed is 20-30 cm; the perforated PVC air inlet pipes externally wrapped by screen tulles of 20 meshes are paved on the surface of the upper covering sand bed; drainage pipes are arranged at the bottom of the mulching film pond; and drained sewage enters the protein separator and the ozone generator through a water pump and then reflows to the mulching film pond for recycling after being processed. The method adopts sand bed self-purification circulating water for culturing the penaeus japonicus, thereby reducing the usage amount of aquacultural raw water, the exchange of aquacultural water bodies, the horizontal transmission paths of pathogens and the generation of diseases; and in addition, the invention can outstandingly enhance the culturing stability and the output of the penaeus japonicus and reduce the generation of the diseases.

Description

technical field [0001] The invention relates to a pond and a method for self-purifying and cultivating Penaeus japonicus in a plastic film sand layer. technical background [0002] Shrimp farming is the pillar industry of my country's aquaculture industry. In 2007, the national farmed shrimp production reached 1.2679 million tons, accounting for about 31.23% of the global farmed shrimp production. Although my country's shrimp pond culture has reached the international leading level in terms of scale and output, the sustainable development of the industry still faces severe challenges. First of all, the breeding species and breeding technology cannot meet the needs of the rapidly developing industry. From the 1970s to the early 1980s, my country's prawn farming species were mainly Chinese prawns. In the mid-to-late 1980s and 1990s, with the breakthrough in industrialized breeding technology of Penaeus monodon, the culture of Penaeus monodon emerged in southern my country, a...

AI Technical Summary

Problems solved by technology

In the traditional breeding mode, the sand layer at the bottom is in a static state, and the deposition and reproduction of pollutants and bacteria are serious.

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