Application of PHA in aquiculture

Abstract

The invention discloses an application of PHA in aquiculture. A PHA-containing agent is adopted as a matrix for the solid-phase denitrification of water body and a biomembrane of large surface area is formed, thus providing energy and places for the dephosphorization and denitrification of microbes; in the meanwhile, the PHA-containing agent provides nutritional substances for beneficial microorganisms to make them propagate in large numbers, so as to restore the ecological environment of the water body, improve the water quality, increase dissolved oxygen, minimize the feeding amount of forage, establish an excellent eco-balance system and accomplish environmentally-friendly and sustainable high-density breeding.

Description

technical field [0001] The present invention relates to aquaculture, in particular to the application of PHA in aquaculture. Background technique [0002] The traditional aquaculture model, especially the intensive high-density farming model, mostly consumes a large amount of high-protein feed and maintains the production method at the cost of polluting the pond itself and the nearshore environment; in addition, farmers use a lot of disinfection to prevent and control fish and shrimp diseases. Antibiotics, antibiotics and other drugs have seriously damaged the ecological environment. This vicious cycle not only pollutes a large amount of water sources, increases the cost of farming, but also seriously restricts the development of healthy fish and shrimp farming. Studies have shown that only 20% of the protein in the feed is utilized, and about 80% of the nitrogen is discharged into the water environment and converted into harmful ammonia nitrogen, nitrite nitrogen, etc.; in...

AI Technical Summary

Problems solved by technology

However, none of these existing methods can purify the waters in aquaculture at the same time and provide nutrients for beneficial microorganisms in aquaculture at low cost and continuously and effectively.