Abstract
The present study was carried out to characterize the development of the cervix, vagina and vestibule, which were collected from a total of 60 female Jinhua pigs from 1 to 120 days of age, and examined morphologically and histologically. The weight of the cervix, vagina and vestibule increased rapidly from 45 to 75 days of age. The cervical epithelium was simple columnar until 30 days of age, which was replaced by stratified flattened epithelium from 45 days of age. Though the height of the cervical epithelium increased from 45 to 75 days of age, there were not significantly differences in their values among all groups. The simple columnar epithelium of the vagina was also replaced by stratified flattened epithelium from 45 days of age. A marked increase in the height of the vaginal epithelium was observed between 60 and 90 days of age. The stratified flattened epithelium of the vestibule was observed at 1 day of age. They were stratified rapidly from 45 to 75 days of age, to increase in the height.
