320 DR. LEGEAR'S STOCK BOOK. 



into the body of the cow the small amount of tuberculin used 

 for the test, the increased dose acts on tubercle and nerve cen- 

 ters alike, and a fever is produced. 



. Post Mortem. An examination after death of internal organs- 

 should always be made on any animal that dies, or which has 

 been slaughtered, presenting the above symptoms, which will 

 generally enable even the inexperienced to recognize this disease 

 if present. In advanced cases the principal changes are usually 

 found in the lungs and the lymphatic glands or in connection 

 with the same. The surface or substance of the lung will gen- 

 erally show solid cheese-like masses of varying size. A favorite 

 situation for these tubercular masses is in the glands between 

 and at the root of the lung. They may also be found in the ab- 

 dominal organs; in fact, the germs of the disease may find lodg- 

 ment in any organ of the body. 



Treatment. Inasmuch as there is no specific for this disease, 

 it is of the utmost importance that all animals, as far as pos- 

 sible, be protected from the contagion. The difficulty of know- 

 ing when cattle first become affected makes it impossible (except 

 by the tuberculin test) to prevent the possibility of infection. 

 Too much care can not be bestowed upon the breeding, the sur- 

 roundings, and the food of the animal so that the latter may 

 be the more able to resist infection even when exposed to it. 

 A rigid exclusion of tuberculous animals is all that is necessary 

 to prevent the appearance of the disease, provided consumptive 

 persons or other animals do not infect the cattle. 



The carcasses of all animals which have died of consumption 

 should be burned or buried deeply, so that other animals can not 

 eat them. Hogs, dogs, cats, etc., eating such carcasses and con- 

 tracting the disease, may in turn give the disease to other ani- 

 mals and man. 



