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

A technology of Crayfish and additives is applied in the field of new disease-resistant additives for Crayfish adult shrimp and its preparation, which can solve the problem of restricting the healthy development of crayfish farming industry, affecting farming output and farming benefits, and low survival rate of adult shrimp. and other problems, to achieve the effect of improving the disease resistance of adult shrimp, improving pond water quality, and increasing aquaculture production.

Inactive Publication Date: 2018-05-08
GUANGDONG NUTRIERA GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
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preparation example Construction

[0041] The present invention also provides a preparation method of the additive, comprising the following steps:

[0042] 1) The raw materials are counted in parts by weight: 30-80 parts of plant extract polysaccharide complex, 20-50 parts of yeast compound, 5-40 parts of levamisole, and 5-30 parts of sodium alginate. Ultrafine pulverization is carried out after impurity removal.

[0043] Among them, the functional components of the yeast complex are β-mannan oligosaccharides (7-10%) and β-glucans (5-8%).

[0044] 2) Mixed by paddle mixer for 180s;

[0045] 3) Screen with 80 mesh rotary sieves;

[0046] 4) Light-proof packaging.

[0047] The method for using the novel disease-resistant additive for adult shrimp of Procambarus clarkii according to the present invention is to use the disease-resistant additive as a feed additive in the compound feed for adult shrimp of Procambarus clarkii, and the added amount accounts for the formula (percentage by weight) of the adult shrim...

Embodiment 1

[0049] A novel disease-resistant additive for adult Procambarus clarkii shrimp, comprising the following ingredients in parts by weight: 30 parts of a plant-extracted polysaccharide compound, 20 parts of a yeast compound, 5 parts of levamisole, and 5 parts of sodium alginate.

[0050] Among them, the plant-extracted polysaccharide complex is 30 parts of astragalus polysaccharide, 15 parts of bamboo shoot polysaccharide, and 20 parts of rice bran polysaccharide;

[0051] Yeast complex consists of 20 parts of yeast cell wall and 25 parts of yeast selenium;

Embodiment 2

[0053] The difference between this example and Example 1 is that the plant-extracted polysaccharide complex of this example is 35 parts of astragalus polysaccharide, 18 parts of bamboo shoot polysaccharide, and 23 parts of rice bran polysaccharide;

[0054] Yeast complex is 30 parts of yeast cell wall and 20 parts of yeast selenium;

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80
CPCA23K50/80Y02A40/818
Inventor 张松杨勇王耀华彭志东章太卓
Owner GUANGDONG NUTRIERA GRP CO LTD
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