Recirculating prawn aquaculture method in combination with nitrification-assimilation effect

A technology of recirculating aquaculture and assimilation, applied in the direction of chemical instruments and methods, applications, fish farming, etc., can solve the problems of high energy consumption in system operation, low economic benefits, low success rate of recirculating aquaculture, etc., and achieve improved treatment Efficiency, reduction of water circulation rate, and the effect of inhibiting some potential pathogens of Flavobacteriaceae
CN110521648AInactive Publication Date: 2019-12-03YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI +2
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
Publication Date
2019-12-03
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a recirculating prawn aquaculture method in combination with a nitrification-assimilation effect and belongs to the technical field of aquaculture. A culture system used in the method comprises a culture pond, a microfilter, a water circulating pump, a biofilter, an ultraviolet sterilization device and a Roots blower; when the culture system is utilized for culture, browngranulated sugar 40-50% of the bait feeding amount or molasses 50-60% of the bait feeding amount is added into the culture pond every day to promote growth of heterotrophic bacteria, and part of metabolic waste is removed by utilizing the bacterial assimilation effect. According to the method, in the circulating water culture system with nitrification as a water treatment core, a carbon source iscontinuously increased in the culture process, growth of the rhodobacteriaceae bacteria in a culture water body is promoted, the bacterial assimilation effect is strengthened, meanwhile, the nitrification effect of nitrification bacteria is not inhibited, the assimilation effect and the nitrification effect jointly purify the water body, the microbial water treatment efficiency is improved, the load of a water treatment system is reduced, and a culture water environment is improved.
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Description

Technical field

[0001] The invention belongs to the technical field of aquaculture, and specifically relates to a method for cyclic aquaculture of shrimp with combined nitrification-assimilation. Background technique

[0002] Litopenaeus vannamei is one of the three major shrimp culture species in the world. It has the advantages of fast growth, strong environmental adaptability, and long survival time out of water. In 2018, the marine production of Litopenaeus vannamei was 1.118 million tons, reaching a crustacean 65.6% of mariculture production. Affected by the deterioration of the ecological environment and the excessively high breeding density, the shrimp aquaculture industry is facing many environmental pressures. It is not affected by adverse factors such as seasons and weather. The environmentally controllable factory farming model is increasingly favored by the industry, especially in my country In the north, the factory farming model of shrimp has developed to a certain ...

Claims

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