Biological product for treating gosling plague and preparing method thereof

The invention provides a biological product for treating gosling plague and a preparing method thereof. The technical scheme is based on the good controlling effect of an antigen-antibody compound on a virus, a combination scheme with VP3 protein as an antigen and an egg yolk antibody as an antibody is determined according to the characteristics of a gosling plague virus, and on this basis, the specific preparing methods of the VP3 protein and the egg yolk antibody are further designed. According to the technical scheme, on the basis of the original gosling-plague egg yolk antibody, the gosling-plague VP3 protein antigen is added, and a compound is prepared. The gosling-plague antigen-antibody compound can resist persistent infection caused by pathogenic microorganism, excess using of antibiotics is avoided, the interference of a maternal antibody is broken through, and an intense stress reaction caused by live vaccine is reduced; as the used antigen is not a complete virus antigen, but is the antigen prepare