FIFTIETH ANNUAL CONVENTION 123 



ical examination of each animal should be made before or 

 during the application of the test. If animals react to the 

 test they must be separated from the rest of the herd. 

 Principal Benefits of Complete; Eradication of Tuberculosis. 



Increased value of individual animal and increased 

 herd value. 



Ability to ship interstate from accredited herds with- 

 out further testing for a period of one year. 



The owner's name being listed in pamphlets published 

 by various States and live-stock associations. 



Confidence by those who desire to purchase cattle to 

 add to their herds. 



Satisfaction of knowing that the dairy products offer- 

 ed for sale are free from diseased germs. 



Elimination of economic losses caused by the disease. 



Eradication from Areas. 



The unit territory to be worked will depend mainly 

 upon the extent to which the disease has spread. In some 

 States practically every county contains numerous tubercu- 

 lous herds, so that, to control the disease effectively, all the 

 herds must be tuberculin tested. In other States, however, 

 the disease is confined to the beef and dairy herds recently 

 established or to which new animals have lately been added. 

 In the latter case it would not be necessary to test all the 

 cattle, but the examination of the herds should be sufficient 

 to demonstrate most satisfactorily that no diseased herds 

 are overlooked. This can be done by testing several herds 

 in each section of the county wherever there is a suspicion 

 that the disease may exist. 



As a general plan, it is best to take up the work by 

 counties, and substantial co-operation should be obtained 

 from the county, government. Each county should pay (1) 

 part of the expense of exterminating the disease by employ- 

 ing inspectors to make the tests, (2) part of the indemnities 

 paid for tuberculous animals, and (3) its share of the cost 

 of cleaning and disinfecting barns, stables and sheds. When 

 a large percentage of the herds of a county are diseased, it 

 is advisable to clean up the herds within a township or 



