THE URO-GENITAL SYSTEM 127 



Symptoms. The symptoms presented by a sow 

 affected with cystic ovaries are variable. There may be 

 indigestion and circulatory disturbances, but the most 

 common symptom is persistence of the estral period, the 

 affected animals usually failing to conceive. 



Treatment. Oophorectomy is the only apparent 

 relief for cystic ovaries. If only one ovary is affected, 

 the sow may still be used for breeding purposes. 



Dermoid and Dentigerous Cysts 



Dermoids and dentigerous cysts occur in the ovary, 

 but are not of common occurrence in swine. 

 Tumors 



Endotheliomas and sarcomas have been observed in 

 the ovary of swine, but they are rare. They partake of 

 the same nature as do these tumors occurring elsewhere 

 in the body. 



FALLOPIAN TUBES 



Malformations of the fallopian tubes are not common. 

 Injuries to the tubes may occur during the operation of 

 spaying or cesarean section. 



An occasional case of pyosalpinx is observed in the 

 carcasses of swine slaughtered at abattoirs. This con- 

 dition is uncommon, and apparently of little clinical 

 interest. 



UTERUS 



Malformations 



Malformations of the uterus are not significant 

 because the majority of swine are fattened for market 

 and are not used for breeding purposes. An occasional 

 anomaly is observed, such as a rudimentary uterus, 

 double uterus, atresia of the cervix, and so on. 



Injuries 



Injuries to the uterus are not common except in 

 those animals that have had difficulty in parturition and 

 in which instruments have been used. In many instances 



