Preparation method of egg yolk antibody for treating type I and novel duck hepatitis and duck glossocele

The invention provides a preparation method of an egg yolk antibody for treating type I and novel duck hepatitis and duck glossocele. According to the technical scheme, a type I inactivated vaccine for duck hepatitis, a novel inactivated vaccine for the duck hepatitis and an inactivated vaccine for the duck glossocele are taken as immunogens for inoculating laying hen, and an immunization method and an inoculation dosage are designed in an innovative way, so that each antibody reaches a high titer level. On the basis, the extraction opportunity of the egg yolk antibody is determined by taking the specific titer indexes of different antibodies, so that the treatment effect of the obtained egg yolk antibody is ensured effectively. Meanwhile, the invention further designs a specific egg yolk antibody extraction process. The obtained triple egg yolk antibody has a high titer, and has definite prevention and treatment effects on the duck hepatitis and the duck glossocele at the same time; the method fills the tech