Using the model of domestic rabbit suffering from schistosomiasis japonicum hepatic fibrosis, the value of ribonucleic acid ( RNA) was determined with ultraviolet spectrophotometer and changes of hepatic pathology were observed with light and electron microscope at the same time. 应用家兔日本血吸虫病模型,在不同阶段进行肝内核糖核酸含量的测定和光镜、电镜观察肝组织相应的变化。