COMMON DISEASES OF SWINE 301 



cholera. As a rule, the lungs and pleural membrane are in- 

 flamed, but the button-like ulcers on the lining membrane of 

 the intestines and stomach, which are characteristic of cholera, 

 are absent. The lining membrane of the stomach and intestines 

 is commonly inflamed, and sometimes ulcers are present, but 

 the ulcers differ from those of cholera, being more hollowed 

 out and less button-like in appearance. 



The germs which cause swine plague are more easily de- 

 stroyed and are less readily carried from one farm to another 

 than those of cholera. Healthy hogs should be separated at 

 once from diseased animals, and the premises should be thor- 

 oughly cleaned and disinfected. Up to the present, medicinal 

 treatment has not been successful, and the farmer must rely 

 upon preventive measures. 



BRONCHITIS. 



Bronchitis commonly attacks young, growing pigs, and may 

 be caused by dust, lung-worms, or damp, chilly quarters. A 

 distressing cough, especially when disturbed from their bed, is 

 one of the most prominent symptoms. Many of the pigs be- 

 come unthrifty, and, if the disease attacks very young pigs, it 

 is likely to cause death. 



Dry, comfortable quarters, and nourishing feed will often 

 pull the pigs through, and care ^should be taken in making the 

 pens and yards sanitary before any more young pigs are put 

 in them. 



PNEUMONIA. 



Pneumonia is more serious than bronchitis and frequently 

 causes death in a very short time. It often results from a 

 severe cold, and may also be brought on by over-exertion, such 

 as being chased, or driven at too rapid a rate. Damp and 



