Pharmaceutical composition for preventing duck viral diseases, freeze-dried powder, preparation method and applications of the composition

Abstract

The invention discloses a pharmaceutical composition for preventing duck viral diseases, freeze-dried powder, a preparation method, and applications of the composition, and belongs to the technical field of poultry feed additive. The pharmaceutical composition is mainly composed of the following components in parts by weight: 85 to 95 parts of duck viral disease preventing yolk antibody, 1 to 5 parts of duck viral disease preventing transfer factor, and 1 to 5 parts of alpha-interferon, and preferably comprises the following components in parts by weight: 5 to 10 parts of astragalus polysaccharide, 5 to 10 parts of angelica polysaccharide, 10 to 20 parts of wolfberry polysaccharide, and 10 to 30 parts of licorice polysaccharide. The duck viral disease preventing yolk antibody, duck viral disease preventing transfer factor, alpha-interferon, and traditional Chinese medicine extract (astragalus polysaccharide, angelica polysaccharide, wolfberry polysaccharide, and licorice polysaccharide) are compounded to prepare the pharmaceutical composition, which can prominently improve the organism immunity and disease preventing ability and effectively prevent the duck viral diseases. The pharmaceutical composition can be made into freeze-dried powder, which can be preserved at a normal temperature for a long time and has the advantages of high antibody titer and good bio-activity.

Description

technical field [0001] The invention specifically relates to a pharmaceutical composition for resisting duck viral diseases, and also relates to freeze-dried powder for resisting duck viral diseases, a preparation method and application of the freeze-dried powder, and belongs to the technical field of poultry feed additives. Background technique [0002] Duck viral diseases mainly include duck plague and duck viral hepatitis. Duck plape, also known as duck virus enteritis (DVE), is an acute, febrile, septic infectious disease of ducks, geese and other birds of the order Anseriformes. The disease is characterized by widespread prevalence, rapid spread, and high morbidity and mortality. As early as 1923, Baudet first discovered the disease in the Netherlands, until 1940, Bos first proposed the name of duck plague, and confirmed that it was a new virus disease different from chicken plague. Afterwards, there were reports of the occurrence of this disease in various countries ...

AI Technical Summary

Problems solved by technology

Among them, the excessive use of western medicine has brought great potential safety hazards to the consumption of duck meat products.

The early effect of vaccination is better, but multiple vaccinations are required, the operation is troublesome, the cost is high, and it is easy to cause stress response in ducklings, and the vaccine has high requirements for storage conditions, and it needs to be refrigerated at 2-8 °C. It loses its effect after a period of time at room temperature

Chinese herbal feed additives are also one of the current research directions, but there are many types of Chinese herbal medicines, and the same Chinese herbal medicines have very different effects on different poultry and livestock diseases, and the immune effect of Chinese herbal medicines on diseases is extremely limited, so its application also has certain limitations. limitation

Injection of egg yolk antibody is also a relatively common method, but the immune effect of a single injection of egg yolk antibody sometimes cannot meet the actual needs

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