48 MODERN DAIRY PRACTICE. 



by cows suffering from inflammation of the udder a dis- 

 ease which is not transferable from cows to man, as tuber- 

 spread of tuberculosis in cattle. In all cases where tuberculosis has 

 been found or is suspected, all animals in the herd should be injected 

 with tuberculin ; and those giving the characteristic reaction must at 

 once be separated from the sound ones, and a thorough disinfection 

 of the stable must take place. It is not necessary to sacrifice the 

 diseased cows immediately ; their milk may be utilized AFTER 

 HAVING BEEN BOILED, and they may be prepared for the butcher, 

 so that the owner may realize as much as possible on them. The 

 disease having been taken in its beginning at least in case of the 

 greater number of animals they fatten easily, and the loss resulting 

 from sacrificing them prematurely will thus be reduced to a mini- 

 mum. Delivered to the butcher at the proper time their lesions will 

 be insignificant. [Tubercle bacilli very rarely appear in the flesh of 

 animals, and even if such should be the case the bacteria, according 

 to the consensus of authorities on the subject, are easily killed by 

 simply boiling. W.] 



" The essential point to be observed in all cases is to remove the 

 diseased animals from the healthy ones, and to exclude them merci- 

 lessly from reproduction. If the young animals escape infection 

 the renewal of the herd will not be endangered, and the void will be 

 filled in the course of a couple of years. When I have applied 

 tuberculin injections I have always assured the owners that the 

 young stock which proved healthy would remain so in the future 

 provided they were separated from the diseased animals ; and ex- 

 perience has always confirmed the correctness of this prevision. 



" It is only necessary to go over a herd once with the test, if the 

 directions given have been strictly followed ; no new animals should 

 be introduced into the herd before having been subjected to the 

 tuberculin test. 



"Thanks to this simple method, the owners of the animals 

 can with little expense and without relying on governmental aid, 

 free themselves from the heavy tribute annually paid to tuber- 

 culosis. 



"Everybody knows, but it is well to repeat it, how dangerous. 



