When it comes to the most popular plant extract among farmers, it is undoubtedly astragalus polysaccharide. Since the outbreak of swine fever in 2006, immune enhancers have become a popular product in the market. Among the immune enhancers, astragalus polysaccharides (APS) is the most widely used and favored by farmers.
Astragalus polysaccharide (APS) is one of the main active components of Astragalus membranaceus. Color is brownish yellow powder, taste slightly sweet. The suitable dosage form is divided into extract, oral liquid and injection. At present, the use of APS in breeding can play three aspects of the effect: one is to enhance the resistance of animals, the second is to treat viral diseases, the third is to enhance the immune effect of vaccines. Astragalus polysaccharides can enhance resistance first because of its effect on the immune organs. Astragalus polysaccharides can promote the development of the spleen and increase its weight. Secondly, it also enhances non-specific immunity and stimulates macrophages to function. Astragalus polysaccharide is antiviral because it has a significant stimulating effect on the interferon system. It has been reported that ASTRagalus polysaccharides can induce endogenous interferon in animals, which can produce antiviral proteins and inhibit viral protein synthesis after acting on cells.
Astragalus polysaccharide can enhance the immune effect of vaccine because it can promote specific immunity. Studies have confirmed that APS can significantly improve the immune function of splenic lymphocytes by changing intracellular information transduction. Astragalus polysaccharides can promote the circulation of lymphocytes by enhancing the adhesion between lymphocytes and endothelial cells, and increase the contact opportunity between lymphocytes and antigens, thus expanding the immune response and enhancing the immune function of the body.
The main function of APS is the regulation and recovery of non-specific immune function. At present, its clinical effect has been recognized by people. The use of ASTRagalus polysaccharide with other drugs to prevent and treat complex pig diseases represented by high fever is popular in the industry.
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