Study on Growth and Development of Reproductive Organs in Female Wuzhishan Swine

LIU Ming-chao;LI Zuo-chen;WANG Xiao-ming;YIN Xi-Jun;CUI Cheng-du;Agricultural College of Yanbian University;Yanbian Prefecture Administration of Animal Husbandry;Yanbian Prefecture Agricultural Scientific Research Institute;

female Wuzhishan swine;;reproductive organs;;growth and development

Wuzhishan swine is an unique small breed in China which is one of the first experimental model animals for human beings.Anatomical and statistical methods was used to provide basic information for the protection,rational development and utilization of Wuzhishan swine variety.The ovaries,fallopian tubes and uterus of different age female Wuzhishan swine were dissected and measured,the data was analyzed and its growth characteristics were discussed.The results showed that the ovarian long diameter,the short diameter and the thickness increase of Wuzhishan swine were related with age linearly and its weight increase was exponentially related with age,while the index increases with age presented the characteristic of first decrease and the following increase;The length of Wuzhishan swine fallopian tube and the growth of diameter was related with age linearly,its increase of weight presented exponential growth;The growth of Wuzhishan swine uterus length with age presented linear growth pattern.The intensity of uterine growth and development was 70 to 110d,and its length was 1.093 to 11.557 cm.