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A kind of immune enhancer for fish and its application

An immune enhancer and fishery technology, applied in the fishery immune enhancer and its application in aquaculture, can solve the problems of drug residues, drug resistance, and environmental pollution in aquatic products, achieve good effect, improve ability, better effect

Active Publication Date: 2021-06-08
WUHAN ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the prevention and control of diseases is mainly based on the prevention and control of chemical drugs, but the long-term repeated use of chemical drugs is likely to cause problems such as drug resistance, environmental pollution, and drug residues in aquatic products, and cannot fundamentally solve the problem of fish diseases. question

Method used

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  • A kind of immune enhancer for fish and its application
  • A kind of immune enhancer for fish and its application
  • A kind of immune enhancer for fish and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 (recipe screening)

[0030] 1 Materials and methods

[0031] 1.1 Test material

[0032] Select Astragalus polysaccharide, Atractylodes macrocephala polysaccharide, Ganoderma lucidum polysaccharide, and Lentinan polysaccharide for two-two compounding, for example: Astragalus polysaccharide: Atractylodes polysaccharide (mass ratio 1:1); Astragalus polysaccharide: Ganoderma lucidum polysaccharide (mass ratio 1:1); Astragalus polysaccharide: Lentinan (mass ratio 1:1); Atractylodes polysaccharide: lentinan (mass ratio 1:1); Atractylodes polysaccharide: Ganoderma lucidum polysaccharide (mass ratio 1:1); Ganoderma polysaccharide: Lentinan (mass ratio 1:1). The normal eel diet was used as the control group.

[0033] 1.2 Test method

[0034] The test was divided into 7 groups, 1 control group, 6 test groups, 2 parallels in each group. The control group was fed with common eel feed, and the experimental group was fed with astragalus polysaccharide and Atractylode...

Embodiment 2

[0045] Embodiment 2 (proportion screening)

[0046] Select the optimal formula screened out in Example 1: astragalus polysaccharide and Atractylodes macrocephala polysaccharide, and prepare compound preparations according to the ratios in Table 2 respectively. The common rice field eel feed is used as a control group, and rice field eel serum alkaline phosphatase and acid phosphatase are used as investigation indicators. As a result, it was found that the alkaline phosphatase and acid phosphatase activities of the compound preparation prepared in various proportions were significantly higher than that of the control group (p<0.05), and when the mass ratio of astragalus polysaccharide and Atractylodes macrocephala polysaccharide was 3:1, 2:1, 1:1 , at 1:2, the activity of alkaline phosphatase and acid phosphatase was significantly higher than that of the same mass single preparation (p<0.05), and the weight gain rate and survival rate of the 3:1 and 2:1 groups were significantly...

Embodiment 3

[0050]A fishery immune enhancer of the present embodiment consists of the following components by mass percentage:

[0051] Astragalus Polysaccharide 60%

[0052] Atractylodes polysaccharide 40%; the sum of the mass percentages of each component is 100%.

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Abstract

The invention discloses a fish immune enhancer and its application in aquaculture. The immune enhancer for fishery of the present invention is composed of the following components by mass percentage: 33%-75% of astragalus polysaccharide; 25%-67% of Atractylodes macrocephala polysaccharide; the sum of the mass percentages of each component is 100%. The immunopotentiator for fishery of the present invention is a combined preparation, which can better exert the immunopotentiating effect. Both the astragalus polysaccharide and the atractylodes polysaccharide used in the invention can improve the non-specific immunity of the fish body, but the two have different action modes and effects, and the combination of the two can complement each other, and the ability to improve the non-specific immunity of the fish body is greatly enhanced. Moreover, the immune enhancer for fishery of the present invention has good effect. The indoor virus attack test shows that the immune protection rate reaches 58.8%, and the Datang application test shows that the immune protection rate reaches 64%. In addition, the raw materials used in the present invention are all Chinese herbal medicine extracts, which are non-toxic and pollution-free, and there is no hidden danger of damage to the breeding ecological environment and drug residues in aquatic products.

Description

technical field [0001] The invention belongs to the technical field of aquatic animal disease prevention and control. More specifically, the invention relates to a fishery immune enhancer and its application in aquaculture. Background technique [0002] With the improvement of intensive farming in my country and the increasing density of farming, the diseases of farmed fish are becoming more and more serious. Bacterial venereal diseases, viral venereal diseases, and parasitic diseases have brought huge economic losses to fish farming. At present, the prevention and control of diseases is mainly based on the prevention and control of chemical drugs, but the long-term repeated use of chemical drugs is likely to cause problems such as drug resistance, environmental pollution, and drug residues in aquatic products, and cannot fundamentally solve the problem of fish diseases. question. Contents of the invention [0003] Plant polysaccharides are a natural macromolecular active...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K31/715A61P37/04A23K50/80A23K20/163
CPCA61K31/715A23K20/163A23K50/80A61P37/04A61K2300/00
Inventor 张立强邓平丁桂珍魏朝辉郑程鹏余少梅周裕和张生元唐永国喻运珍艾桃山苏可先陶维忠张浩
Owner WUHAN ACADEMY OF AGRI SCI
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