Duck viral hepatitis: mainly occurs in ducks aged 3-20 days, and also occurs in other age groups. The incidence of ducks is relatively high and growing rapidly. Generally speaking, diseases that occur at an earlier age, as well as more serious diseases, will cause greater damage. Therefore, the state should make a detailed investigation on the incidence of diseases in local laws in order to prevent the occurrence of diseases by giving drugs a few days before they are lost.

The clinical diagnosis of the disease is relatively easy to distinguish, and its symptoms are mainly dyskinesia, ataxia and nervous system symptoms (rotation, spasm, etc. ), body side down, sole paddling, and arch palm (head backward, neck backward, back backward). The disease will affect the growth and development of ducks to varying degrees.

Anatomical symptoms: liver bleeding, swelling, mottled appearance, fragile texture, and many bleeding spots or bleeding spots of different sizes, some of which are very bad; Gallbladder enlargement, bile color becomes pale; Spleen enlargement, punctate bleeding. The kidneys are swollen and congested.

Prevent this disease. Generally, duck hepatitis vaccine is inoculated with attenuated vaccine within three days (the disease has a high incidence and needs strict and good immunity). Once the disease occurs, the sooner the better, it is necessary to inject therapeutic biological agents, hyperimmune serum or yolk antibody solution into muscle (the first injection of healthy ducks), and add water in combination with antiviral drug VC to treat liver detoxification and promote body recovery.