Novel disease-resistant additive for adult procambarus clarkii shrimps and preparation method of novel disease-resistant additive

Abstract

The invention discloses a novel disease-resistant additive for adult procambarus clarkii shrimps. The novel disease-resistant additive comprises the following components in parts by weight: 30-80 parts of a plant extraction polysaccharide compound, 20-50 parts of a yeast compound, 5-40 parts of levamisole, and 5-30 parts of sodium alginate, wherein the plant extraction polysaccharide compound comprises 30-40 parts of astragalus polysaccharide, 15-20 parts of bamboo shoot polysaccharide, and 20-25 parts of rice bran polysaccharide; and the yeast compound comprises 20-40 parts of yeast cell walls and 20-30 parts of selenium yeast. According to immunoenhancement components which are screened, not all the components having the best immunoenhancement properties are combined, while through comprehensive consideration of complementary characteristics, synergistic efficacy and immunoenhancement effects of the components, under the combined action of the components and within a specific contentrange, synergistic effects are achieved. The disease-resistant additive disclosed by the invention is added to the feed, so that the disease resistance of the adult shrimps can be obviously improved,the breeding survival rate can be increased, the breeding yield can be increased, and the mortality rate of the adult shrimps can be reduced. The water quality of a pond can be improved to a certainextent, the used raw material sources are stable to supply, and the production technology is simple.

Description

technical field [0001] The invention relates to the technical field of aquatic feed additives, in particular to a novel disease-resistant additive for adult shrimp of Procambarus clarkii and a preparation method thereof. Background technique [0002] Procambarus clarkii, also known as crayfish, has developed rapidly in domestic farming in recent years. According to incomplete statistics, the domestic breeding area has exceeded 9 million mu. However, the yield per mu is low, with an average of only 200 jin / mu. Tracing it to its cause, adult shrimp's poor immunity, high incidence of disease and the lower survival rate of farming are one of the important reasons. [0003] At present, there are many domestic studies on enhancing the immunity of adult crayfish, but most of them focus on the juvenile stage, and there are few studies on adult shrimp. The disease resistance of adult shrimp determines the success rate of breeding. At present, the low survival rate of adult shrimps...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many domestic studies on enhancing the immunity of adult crayfish, but most of them focus on the juvenile stage, and there are few studies on adult shrimp. The disease resistance of adult shrimp determines the success rate of breeding

At present, the low survival rate of adult shrimps in the lobster farming process has seriously affected the farming output and farming benefits, especially during the rainy season from April to May

This seriously restricts the healthy development of the crayfish farming industry

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