250 DISEASES OF CATTLE. 



ing, in cut feed : Powdered gentian root, three drachms ; 

 powdered ginger root, three drachms ; mix, and make 

 one dose. If these powders improve the animal in a w^eek 

 or so, give two drachms of the sulphate of iron in addition 

 thereto. The iron, however, may dry up the milk con- 

 siderably. The case then resolves itself into whether it 

 would be better to have a dead cow or a dry one. Good 

 and generous feeding is indicated in this disease. 



Apoplexy. — (See Splenic Apoplexy.) 



Aphtha or Thrush, — This is an eruption in the mouth 

 similar to small bladders, and is often mistaken for a 

 contagious disease called Epizootic Aphtha. 



Cause, Irritation in the mouth of young cattle from 

 teething. 



Treatment If treatment be at all necessary, a weak 

 mixture of vinegar and cold water will answer ; or a solu- 

 tion of alum or alum water applied to the mouth twice a 

 day, will be all that is wanted. 



Biliary Calculi or Gallstones. — These are of several 



colors. 



(1.) White Gallstones. 



(2.) Yellow Brown Gallstones. 



(3.) Dark Green Gallstones. — All of which are 

 hard, grooved, and have the odor of musk. During the 

 life of the animal no symptoms arc observed whereby their 

 presence can be detected. This, however, is of little or no 

 consequence, as no treatment is necessary, and they scarcely 

 ever cause the ox any inconvenience. 



Black Q,uarter. — Joint Felon — Quarter Evil. This is 

 a disease peculiar to young cattle, and occurs in the spring 

 of tiie year. It is characterized by one hind leg and thigh 



