INFECTIOUS DISEASES I45 



surface of the ulcer with lunar caustic. The above 

 treatment should be repeated twice a day in ad- 

 vanced cases, and in mild ones once a day. It 

 should be kept up for as long a time as neces- 

 sary. A small teaspoonful of flowers of sulphur, drop- 

 ped into the mouth of the affected pig, is recom- 

 mended as a treatment for this disease. 



It is usually more economical to kill the badly 

 diseased pigs than it is to treat them, as they are 

 apt to scatter the disease and become badly stunted 

 or deformed. 



TUBERCULOSIS 



The abattoir statistics published by the Bureau 

 of Animal Industry show that tuberculosis is a 

 fairly common disease of swine, and it is no doubt 

 on the increase in this country, especially in dairy 

 sections, where the skim milk from the dairy is 

 fed 'to hogs. Statistics show that tuberculosis in 

 hogs varies according to the prevalence of the 

 disease among cattle, showing that the milk from 

 tubercular cows is the common source of this af- 

 fection. It is liot so prevalent in the United 

 States as in some European countries. 



In the abattoir generalized tuberculosis is more 

 commonly found in fat, heavy hogs than in light 

 ones. In most cases they appear to be in perfect 

 health, and it is on post, mortem examination that 

 the diseased condition of the body is recognized. 

 This is one of the peculiarities of the disease, and 

 it is because of the slow progress and the absence 



