Ecological regulate and control cultivation method for penaeus orientalis in sea water pool

Abstract

The invention relates to a seawater pond prawn biological control green aquaculture method which belongs to the seawater pond prawn aquaculture field. Before putting in larva prawn, a prawn pond artificial ecological system is established in a seawater pond. The method comprises the following steps: (1) 0.5m3 to 1m3 of lichen every mu of prawn pond is transplanted in April; (2) 2kg to 3kg of algal gammarid very mu of prawn pond is transplanted from April to the beginning of May; (3) 1kg to 2kg of corophiidae very mu of prawn pond is transplanted from April to the beginning of May; (4) 10kg to 20kg of assimineidae every mu of prawn pond is transplanted from April to the beginning of May; (5) pseudopolydora is transplanted in the same water inlet period; (6) culture; (7) daily test. The method has the advantages that the prawn pond artificial ecological system provides biological bait for the prawn, prevents diseases, realizes green aquaculture without public hazard, replaces traditional mechanical clearing with biological purification, and realizes discharge without pollution during prawn aquaculture.

Description

technical field [0001] The invention belongs to the field of prawn cultivation in seawater ponds, and in particular relates to a green cultivation method for ecological regulation of prawns in seawater ponds. technical background [0002] my country is the largest shrimp farming country in the world and occupies an important position in the international shrimp trade. However, since the outbreak of white spot syndrome virus (wssv) in the whole country in 1993, the shrimp farming industry in my country has been severely hit, and the output is large. Landslides, huge economic losses. The area and output of prawn farming have been decreasing year after year, and the losses have been serious, which has caused my country's prawn farming industry to fall into a low state for several consecutive years, and the annual economic losses caused by this are as high as billions of yuan. [0003] At the end of the last century, in order to save the industry of prawn farming, my country suc...

AI Technical Summary

Problems solved by technology

However, as time goes by and inbreeding intensifies, the germplasm of these two kinds of prawns changes, and their disease resistance decreases year by year. At the same time, because prawn white spot syndrome virus (WSSV) is always a worldwide chronic disease, there has been no one Special effective prevention and control methods have caused the outbreak of shrimp farming diseases. Due to the needs of production, a large number of pesticides, disinfectants, antibiotics, feed additives and other drugs have to be used. At the same time, the quality of prawns has declined, affecting the health of consumers, international trade, and even market access and sales. At the same time, the drainage of shrimp ponds containing a large amount of nutrient-rich substances, residual drugs, and pathogens is discharged into coastal waters. Serious pollution in the coastal waters has caused the shrimp farming industry to continue to fall into the vicious cycle of "frequent disease occurrence-disease prevention and treatment-administration of drugs-environmental pollution-frequent disease occurrence"

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