Method for controlling water quality in aquaculture by utilizing oocystis

Abstract

The invention provides a method for controlling water quality in aquaculture by utilizing oocystis. The method comprises the following steps: 1) adding oocystis seeds and nutrients into clean water body, cultivating for 5-7 days, then putting fingerlings into the water body, and cultivating; and 2) ventilating the seedling cultivation water body in the step 1), adding the nutrients in the cultivation process and supplementing the oocystis seeds. The method provided by the invention has the advantages that the oocystis is introduced in the aquaculture, and the oocystis is utilized for absorbing ammonia nitrogen and nitrite in the water body and reducing excessive inorganic salt in the water body, and adsorbing heavy metals for reducing influence of the heavy metals in the water body on aquaculture cultivation; meanwhile, the oocystis preferentially occupies ecological space in the water body, so that the oocystis has exclusiveness on vibrios and blue-green algae, so that the method provided by the invention can stabilize normal functions of an aquaculture water system ecological system, improve an aquaculture water environment and prevent multiple aquatic diseases of prawns and the like.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a water transfer method for green algae in aquaculture, and more particularly to a method for regulating water quality in aquaculture by using oocysts. Background technique [0002] Prawns, whose scientific name is Litopenaeus vannamei, also known as White Prawn, are wide-temperature and wide-salt marine animals. They are welcomed by many consumers because of their high protein content and delicious meat. With the continuous development and advancement of species breeding technology, more and more seafood has been artificially cultured to meet the large demand of the market. [0003] In recent years, the high-density intensive culture of prawns has led to unstable production due to the prevalence of diseases, and the high incidence of shrimp diseases has brought great risks to farmers. In the prior art, a large amount of chemical drugs are generally used in the disease preve...

AI Technical Summary

Problems solved by technology

At present, there are many methods for water quality regulation in aquaculture. For example, the patent publication number CN105130007 discloses a water quality regulator, which specifically adjusts the water quality of aquaculture by adding EM bacteria, chemicals and chemical oxygenates. Ecological balance, but the added bacteria may have side effects on the breeding objects, or become dominant bacteria, which is difficult to contain, thus affecting the survival of beneficial bacteria in aquaculture water, and at the same time, aquaculture grows in chemical-rich water, which cannot guarantee shrimp The quality of product; Another example, publication number is that the patent of CN105502599 discloses a kind of composite water quality conditioner for aquaculture, maintains water quality ecological environment by adding described conditioner, specifically adopts Coptidis Rhizoma extract, Radix Radix Radix, cinnamon, electric Stone powder and other substances are compounded. Although it has good water quality disinfection and bactericidal effects, because the compound regulator is easy to eutrophicate the water body, coupled with the need for frequent use, it may cause other aquatic animal diseases, and the compound regulator There is no guarantee of long-term use

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