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Immunopotentiator for large yellow croaker juvenile

An immune enhancer, the technology of large yellow croaker, applied in the direction of application, medical preparations containing active ingredients, plant raw materials, etc., can solve the problems of no oligosaccharide immune enhancer, etc., to improve immunity and disease resistance, No toxic side effects, the effect of improving the survival rate

Inactive Publication Date: 2012-08-15
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no oligosaccharide immune enhancer for large yellow croaker juveniles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] An immune enhancer for large yellow croaker juveniles. The cell wall of solid beer yeast is ultrasonically broken to obtain beer yeast extract, or the beer yeast by-product after beer brewing is ultrasonically broken to obtain beer yeast extract. Yeast extract contains β-1,3-glucan. The weight content of β-1,3-glucan in brewer’s yeast extract is 18-25%. 20 kilograms of oligosaccharides, 15 kilograms of mannan oligosaccharides, and 20 kilograms of brewer's yeast extract are uniformly mixed with the above-mentioned raw materials to prepare an immune enhancer.

Embodiment 2

[0012] An immune enhancer for large yellow croaker juveniles, which is basically the same as in Example 1, except that in the raw material formula: 25 kg of fructooligosaccharides, 25 kg of galactooligosaccharides, 20 kg of mannan oligosaccharides, extracted from brewer's yeast 30 kg.

Embodiment 3

[0014] An immune enhancer for large yellow croaker juveniles, which is basically the same as in Example 1, except that in the raw material formula: 30 kg of fructooligosaccharides, 30 kg of galactooligosaccharides, 10 kg of mannooligosaccharides, extracted from brewer's yeast 25 kg.

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PUM

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Abstract

The invention disclose an immunopotentiator for large yellow croaker juvenile, which is prepared by uniformly mixing the raw materials including fructooligosccharide, galactooligosaccharides, mannan oligosaccharides and yeast extract; only 0.1 to 0.2% of the addition amount of the immunopotentiator in feed can prominently enhance the immunity and the disease resistance of the large yellow croakerjuvenile so as to raise the survival rate of large yellow croaker fry in a full culture period, the survival rate can be raised by over 12% and the immunoprotection rate can reach over 30%; and the immunopotentiator is free from toxic and side effects, residue and drug resistance, and also, has no adverse impact on feed palatability. Thus the immunopotentiator for the large yellow croaker juvenile is small in addition amount, can prominently enhance the immunity and the disease resistance of the large yellow croaker juvenile, and can raise the culture survival rate by over 12% and reach the immunoprotection rate up to over 30%.

Description

technical field [0001] The invention relates to an immune regulator for fish, in particular to an immune enhancer for large yellow croaker juveniles. Background technique [0002] Due to the intensive farming of fish, the incidence of fish disease has greatly increased, and the use of a large number of antibiotics and other drugs with potential safety hazards has led to increased resistance to bacterial diseases and increased drug residues in fish. The problem has attracted widespread attention. In order to improve the antibacterial ability of farmed fish and reduce the drug residues in farmed fish, people have developed additives to improve the immunity of fish. The current immune additives include Chinese herbal medicine preparations, polysaccharide preparations, small peptide preparations and oligosaccharides. preparations, etc. The curative effect of Chinese herbal preparations is slow, and the active ingredients of the medicine are uncertain and the use is limited. P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K31/733A23K1/18A23K1/16A61K36/064A61P37/04A61K31/702A61K31/715A23K10/16A23K20/163A23K50/80
CPCY02A40/818
Inventor 周歧存杨锐
Owner NINGBO UNIV
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