Composition for resisting duck viral hepatitis, freeze-dried powder, and preparation method and use of freeze-dried powder

A technology for duck viral hepatitis and freeze-dried powder, which is applied in the directions of antiviral agents, application, freeze-dried transportation, etc., can solve the problems of relatively strict requirements for vaccine storage conditions, stress response of livestock and poultry, and troublesome operation, and achieves a high level of improvement. Immunity and survival, targeted, cost- and labor-reducing effects

Inactive Publication Date: 2014-11-26
HENAN UNITED INVE FEEDSTUFF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, people use vaccines to immunize against duck viral hepatitis. The early effect is better, but multiple vaccinations are required, the operation is troublesome, the cost is high, and it is easy to cause stress reactions in livestock and poultry, and the vaccines have strict requirements for storage conditions. , it needs to be refrigerated at low temperature, and it will be invalid at room temperature for a period of time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The anti-duck viral hepatitis composition of this embodiment consists of the following components in parts by weight: 97 parts of anti-duck viral hepatitis egg yolk antibody, and 1 part of anti-duck viral hepatitis transfer factor.

[0042] The anti-duck viral hepatitis freeze-dried powder of the present embodiment is composed of the following components by weight: 97 parts of anti-duck viral hepatitis yolk antibody, 1 part of anti-duck viral hepatitis transfer factor, 0.2 part of formaldehyde, 0.01 part of thimerosal, 0.05 part of selenium, 0.5 part of vitamin C, 1 part of polyvinylpyrrolidone, 0.5 part of glycine.

[0043] The preparation method of anti-duck viral hepatitis freeze-dried powder in the present embodiment, concrete steps are as follows:

[0044] (1) Vaccine preparation from virus strains: take the national standard duck viral hepatitis virus strains to proliferate and inactivate to prepare emulsifiable concentrate vaccines for later use;

[0045] (2) Pr...

Embodiment 2

[0059] The anti-duck viral hepatitis composition of this embodiment consists of the following components in parts by weight: 95 parts of anti-duck viral hepatitis egg yolk antibody, and 1.5 parts of anti-duck viral hepatitis transfer factor.

[0060] The anti-duck viral hepatitis freeze-dried powder of the present embodiment is composed of the following components by weight: 95 parts of anti-duck viral hepatitis egg yolk antibody, 1.5 parts of anti-duck viral hepatitis transfer factor, 0.3 part of formaldehyde, 0.02 part of thimerosal, 0.1 part of selenium, 1 part of vitamin C, 2 parts of polyvinylpyrrolidone, 0.5 part of glycine.

[0061] The preparation method of anti-duck viral hepatitis freeze-dried powder in the present embodiment, concrete steps are as follows:

[0062] (1) Vaccine preparation from virus strains: take the national standard duck viral hepatitis virus strains to proliferate and inactivate to prepare emulsifiable concentrate vaccines for later use;

[0063...

Embodiment 3

[0070] The anti-duck viral hepatitis composition of this embodiment consists of the following components in parts by weight: 96 parts of anti-duck viral hepatitis egg yolk antibody, and 2 parts of anti-duck viral hepatitis transfer factor.

[0071] The anti-duck viral hepatitis freeze-dried powder of the present embodiment is composed of the following components by weight: 96 parts of anti-duck viral hepatitis yolk antibody, 2 parts of anti-duck viral hepatitis transfer factor, 0.25 parts of formaldehyde, 0.015 parts of thimerosal, 0.075 parts of selenium, 0.75 parts of vitamin C, 1.5 parts of polyvinylpyrrolidone, and 0.5 parts of glycine.

[0072] The preparation method of anti-duck viral hepatitis freeze-dried powder in the present embodiment, concrete steps are as follows:

[0073] (1) Vaccine preparation from virus strains: take the national standard duck viral hepatitis virus strains to proliferate and inactivate to prepare emulsifiable concentrate vaccines for later use...

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Abstract

The invention discloses a composition for resisting duck viral hepatitis, freeze-dried powder, and a preparation method and use of the freeze-dried powder, and belongs to the technical field of veterinary feed additives. The composition comprises, by weight, 92-97 parts of a duck viral hepatitis-resistant yolk antibody and 1-3 parts of a duck viral hepatitis-resistant transfer factor. The freeze-dried powder comprises, by weight, 95-97 parts of the duck viral hepatitis-resistant yolk antibody, 1-2 parts of the duck viral hepatitis-resistant transfer factor, 0.2-0.3 parts of an inactivator, 0.01-0.02 parts of an antiseptic and 2.05-3.6 parts of a heat-resistant freeze-dried protective agent, and has the advantages of low preservation conditions, long preservation time, high antibody titer and good biological activity. Through combined use of the duck viral hepatitis-resistant yolk antibody and the duck viral hepatitis-resistant transfer factor, the freeze-dried powder has effects of preventing and treating duck viral hepatitis, improves duck immunity and survival rate, is convenient for use and has a low cost.

Description

technical field [0001] The invention specifically relates to an anti-duck viral hepatitis composition, an anti-duck viral hepatitis freeze-dried powder, and also relates to a preparation method and application of the freeze-dried powder, belonging to the technical field of animal feed additives. Background technique [0002] Duck occupies a relatively large share in my country's aquaculture industry. The annual slaughter volume is nearly 2 billion, the meat production reaches nearly 3 million tons, and the annual profit reaches more than 3 billion. However, the raging duck disease has brought huge losses to my country's breeding industry. Among them, duck viral hepatitis is one of the most serious diseases that endanger ducklings. [0003] Duck viral hepatitis is referred to as duck hepatitis for short. It mainly harms ducklings under 20 days old. The younger the ducklings are, the higher the mortality rate is. The highest mortality rate can reach 90-95%, and all antibiotics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K39/42A61K9/19A23K1/16A61P1/16A61P31/12A61K38/00A23K20/195A23K50/75
Inventor 吴红云赵小中郭俊清
Owner HENAN UNITED INVE FEEDSTUFF
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