The histopathological changes of inoculated duckling with duck hep atit is virus type I (DHV-I) were observed.

• 对试验感染I型鸭肝炎病毒雏鸭的组织病理变化进行了观察，结果表明：接毒后12h，肝、脾、肾及胰等器官组织主要表现为变性性变化；