Application of traditional Chinese medicine composition with Uraria crinita in preparation of drugs for preventing and treating porcine viral diarrhea

Abstract

The invention relates to the field of traditional Chinese medicine and discloses application of a traditional Chinese medicine composition with Uraria crinita in the preparation of drugs for preventing and treating porcine viral diarrhea; the traditional Chinese medicine composition comprises Uraria crinita, root of Mongolian milkvetch, root of ural licorice and Crotalaria zanzibarica, is prepared by ethanol thermal reflux extraction and water decoction and extraction, and may prevent and treat porcine viral diarrhea. The traditional Chinese medicine composition according to the invention has good antiviral effect, the source of active pharmaceutical ingredients is sufficient, and the traditional Chinese medicine composition is widely applicable to the preparation of drugs for treating porcine viral diarrhea in piglets, adult boars and adult sows.

Description

technical field [0001] The invention relates to the field of traditional Chinese medicine, in particular to a preparation method of a traditional Chinese medicine composition containing cattail grass and its application in medicine for suppressing porcine viral diarrhea. Background technique [0002] Porcine viral diarrhea is a relatively common disease in pig herds. Its pathogenic viruses mainly include porcine epidemic diarrhea virus, porcine rotavirus, porcine pseudorabies virus and porcine transmissible gastroenteritis virus. Infection with one of them After one or more cases, symptoms such as watery diarrhea and vomiting often appear in the infected pigs, and the onset is sudden and the transmission is fast. Piglets within one week of age can easily die within 2-7 days after symptoms appear, and the mortality rate can reach 100%. Adult pigs can gradually recover after 3-7 days of diarrhea, but may form a dead pig. Porcine viral diarrhea is a worldwide epidemic, which s...

AI Technical Summary

Problems solved by technology

Viral diarrhea vaccines for pigs are divided into strong vaccines and inactivated vaccines. The virulent vaccines are fed to pregnant sows by mixing the intestinal contents and feces of infected pigs on the farm to make them produce antibodies and protect piglets. However, this method does not Eliminate the presence of viruses, which are extremely prone to repeated infections

However, the virulence of the strains of inactivated vaccines is unstable, and there are hidden dangers such as reversion to strong virulence or too weak virulence to form an immune response.

[0004] In addition to vaccination, antibiotics and other drugs can be used to control bacterial infection caused by viral infection in order to prevent pig viral diarrhea, thereby improving the survival rate of pigs, but the abuse of antibiotics will pollute the environment and may even screen The emergence of superbugs makes the prevention and control of the epidemic more difficult. In addition, if not handled properly, the antibiotics remaining in the pork may have adverse effects on the human body, so there is a potential risk for the prevention and treatment of swine viral diarrhea

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