326 The Diseases of Animals 



racks, mangers, against which contaminated animals 

 have rubbed. 



As soon as this disease is discovered, those animals 

 which show no symptoms of it should be removed to 

 ground or yards not previously occupied by cattle hav- 

 ing the disease. If such arrangement is not possible^ 

 all affected animals should be separated from the healthy 

 ones, and all posts, mangers, and feed-racks, against 

 which infested animals have rubbed, should be thor- 

 oughly disinfected by scrubbing with a solution of one 

 part of carbolic acid dissolved in twenty parts of water. 

 Those animals which appear healthy should be care- 

 fully watched, and should symptoms of the disease ap- 

 pear the affected animals should be separated from the 

 others at once. In short, every precaution should be 

 taken to isolate the disorder, thereby reducing the ex- 

 tent of the attack. 



The most successful medicinal 'treatment of cattle 

 itch consists of a combination of external and internal 

 remedies. The value of sulfur given internally in the 

 treatment of parasitic diseases is well known. Sulfur 

 is best administered in combination with salt, placed 

 where animals can lick it at will. One pound of flowers 

 of sulfur mixed with eight pounds of common salt is 

 a good proportion. If cattle are not accustomed to 

 eating salt, the quantity of this mixture should be lim- 

 ited to a small handful at first, and gradually increased. 

 The external treatment consists in the application of 

 remedies that will destroy the parasites and eggs 

 without injuring the animal. If a large number of 

 cattle are affected, the most satisfactory method is to 



