COMMON DISEASES OF SWINE 



329 



siderable time, possibly several weeks or even two or three 

 months. Often the pig becomes a complete wreck, and death 

 at last occurs. 



Treatment. When a hog once contracts the disease, little 

 can be done in the way of treatment. Preventive measures 

 are the only effective means for fighting this disease. In case 

 the disease should be found in a herd, it is safer to divide the 

 herd up into small groups, keeping hogs which have been ex- 



Courtesy Tennessee Department of Agriculture. 



FIG. 93. Injecting serum behind shoulder (large hog). 



posed to the disease 'separate from those which have not. Dis- 

 eased carcasses should be burned, and thorough disinfection of 

 the premises and the animals should be made. The disease 

 enters the system through the stomach, and, therefore, care 

 should be exercised at all times in providing clean water and 

 feed. The importance of quarantine, isolation, and disin- 

 fection, and methods of conducting the same, have been dealt 

 with under " Sanitation/' which see. 



