1. The bacteria disease of soft - shelled turtle (Trionyx Sinensis) is one of the ma jor diseases in turtle culture industry in China, the disease harms the turtle from juvenile to adult or parent.

2. Spermiogenesis of sperm head in soft-shelled turtle, Trionyx sinensis, was examined by transmission electron-microscopy.

3. The biological and non-biological factors causing Trionyx diseases had been discussed.

4. Trionyx sinensis virus ( TSV ) was isolated from the lethal disease Chinese soft - shelled turtle.

5. Objective: To analyse the fatty acid and trace element composition and antioxidant capacity of Trionyx sinensis.

6. It can provide reliable basis for artificial culture of Trionyx sinensis[sentence dictionary], the improvement of incubation rate.

7. By means of microscopic examination and observation on spawning activities, the gonadal development of Chinese turtle , Trionyx sinensis, cultured in hothouse was investigated.

8. The methods of wax microtomy and microscopic measurement were applied to study the histology of digestive tract and the face of tunica mucosa of the Trionyx sinensis.

9. The significance of the evolutive changes in the microstructure, and ultrastructure of Trionyx sinensis thymus in relation to the function and evolution has been discussed.

10. This paper is to deal with hemopathology on the perforated disease of Trionyx sinensis.

11. Ultrastructure of mucosal epithelium of small and large intestine in 15 Soft-shelled Turtles, Trionyx sinensis, was observed using transmission electron microscope.

12. In order to study the nosogenesis of complextoxonosis in Trionyx sinensis, the histopathologicalchange had been observed by using tissue section techniques.