A kind of anti-duck viral hepatitis composition, freeze-dried powder, preparation method and application

Abstract

The invention discloses an anti-duck viral hepatitis composition, freeze-dried powder, preparation method and application, and belongs to the technical field of animal feed additives. The composition is composed of the following components in parts by weight: 92-97 parts of anti-duck viral hepatitis egg yolk antibody, and 1-3 parts of anti-duck viral hepatitis transfer factor. The freeze-dried powder is composed of the following components in parts by weight: 95-97 parts of anti-duck viral hepatitis egg yolk antibody, 1-2 parts of anti-duck viral hepatitis transfer factor, 0.2-0.3 parts of inactivator, and 0.01-0.02 parts of preservative 2.05-3.6 parts of heat-resistant freeze-drying protective agent; it has the advantages of reducing storage conditions, prolonging storage time, high antibody titer, and good biological activity. Anti-duck viral hepatitis transfer factor is used in conjunction with anti-duck viral hepatitis egg yolk antibody The invention has the effect of preventing and treating duck viral hepatitis, can improve the immunity and survival rate of ducks, and is convenient to use and low in 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...

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