Natural compound for improving anti-stress reaction of fish and application thereof

Abstract

The invention discloses a natural compound for improving anti-stress reaction of fish. The natural compound comprises a natural compound anti-stress agent I and / or a natural compound anti-stress agentII, wherein the natural compound anti-stress agent I comprises two or more of a wild liquorice organic solvent extract, a radix angelicae sinensis organic solvent extract and a mulberry leaf organicsolvent extract; and the natural compound anti-stress agent II comprises two or more of a hawthorn water extract, a radix angelicae sinensis water extract and a motherwort water extract. The application of the natural compound for improving the anti-stress reaction of the fish is used for preparing freshwater fish anti-stress reaction additives or feed; wherein the stress reaction comprises a high-density stress reaction. The fish anti-stress reaction compound provided by the invention is a natural plant extract, and other substances are not artificially added into basic feed raw materials. The natural functional feed can inhibit fish weight gain, food intake and feed efficiency reduction caused by high-density stress in culture, has no residue and no toxic or side effect, and does not pollute the environment.

Description

technical field [0001] The invention relates to the technical field of freshwater fish culture, in particular to a natural compound for improving fish anti-stress response and its application. Background technique [0002] "High density and intensification" is an important feature of current aquaculture. However, the high-density breeding mode reduces the living space of fish in the water body, intensifies the competition and interference between different individuals; increases the amount of feed, increases the amount of breeding waste in the water body, and deteriorates the water quality; these factors make the stress of fish Response is increased, thereby reducing fish growth rate, feed intake and feed efficiency. Stress response can also reduce the immunity of fish and increase the morbidity and mortality of fish. The above factors have also increased the use of antibiotics and chemical drugs in farming, resulting in increased drug residues in fish meat. The defects i...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the high-density breeding mode intensifies the stress response of fish, and some existing feed additives are toxic to animals, even carcinogenic, and may cause food safety hazards and hazards due to residues in fish. Human health, the present invention provides a natural compound for improving the anti-stress response of fish and its application to solve the above problems. It is a natural compound prepared based on Chinese herbal medicine with the same origin as medicine and food, and is used as a natural anti-stress response additive and feed for fish , has no toxic and side effects, and is of great significance for improving its economic and social benefits

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