Granular l^enereal Disease of Cattle 103 



Affected bulls are to be handled along the same general lines 

 as described for cows. 



The prophylaxis and control of the maladj' is highly impor- 

 tant and, in a general way, demands the enforcement of the usual 

 regulations for the control of contagious diseases. Of the first 

 importance is sexual isolation ; coition must be prohibited until 

 the disease has wholly disappeared in the two animals to be 

 mated, not alone because a diseased animal will quite surely 

 transmit it by copulating with a sound one, but because coition 

 tends constantly to arouse the disease to new and increased ac- 

 tivity. In addition there needs be general isolation of the dis- 

 eased from the health}-, with thorough and efficient disinfection 

 of the stalls and all portions of the stable. 



In a suspected herd, the penis and sheath of the bull should 

 be thoroughly disinfected by means of a reliable douche, both 

 immediately before and after copulation. This is easily accom- 

 plished by placing a barrel or other container, filled with a relia- 

 ble antiseptic, in a convenient elevated place, from which the 

 fluid may flow by gravity, and attaching to it, by means of a 

 faucet, a piece of rubber tubing 10 to 15 feet long, the free end 

 of which ma}' be inserted into the opening of the sheath and the 

 cavity thoroughly douched. In regions where the malady exists 

 or is suspected, efficient quarantine should be enforced against 

 the entrance into the herd of diseased or suspected animals. 



