This product has a variety of effects such as increasing the body's immune function, enhancing the effectiveness of antibiotics and sulfa drugs, reducing the generation of antibiotic resistance, and diluting vaccines. Astragalus polysaccharide induces the body to produce interferon, has the function of regulating and enhancing humoral immunity and cellular immunity, and can effectively relieve viral diseases and immunosuppressive diseases. It has obvious therapeutic effect on high fever, loss of appetite and low immune function caused by various viral and bacterial diseases such as infectious bursal disease (IBD) in chickens, etc.