Farmers Bulletin 1060. 
12 
cul os is, in all probability the swine will contract the disease. Swine 
ma 3 contract tuberculosis also by eating parts of the carcasses of 
infected cattle, swine, or poultry. Other sources of contamination are 
infected sputum from human beings, and the feeding of uncooked 
garbage containing the germs of tuberculosis. Tuberculous swine, 
like diseased cattle, may also infect one another. 
SYMPTOMS OF TUBERCULOSIS. 
It must be understood that tuberculosis is a disease which often 
gives no indication of its presence b}^ external symptoms. Y r et 
persons skilled and experienced in dealing with the disease among 
animals frequently are able to detect certain abnormal conditions 
Fig. 5.—A reacting cow that was constantly “bloating.” The pressure of greatly enlarged tuberculous 
glands on the gullet was the cause of the bloating. 
which lead them to pronounce the animal as probably affected with 
tuberculosis. A generally run-down condition, accompanied with a 
cough, is often considered to be an indication of tuberculosis but is 
not a conclusive symptom. When tuberculosis is suspected it is 
always advisable to apply the tuberculin test without delay. 
As the disease often involves the lymphatic glands in various parts 
of the body, an examination of such glands as can be felt in the living 
animal is sometimes helpful in diagnosing the disease. The glands 
