JOHNES DISEASE 63 



lished. In some cases constipation sets in before death 

 occurs, so that there may be several days with no evac- 

 uations, preceding the end. 



The treatment of Johnes disease up to the present 

 time has been unsuccessful. Until a satisfactory treat- 

 ment has been elaborated the handling of this disease 

 lies solely in prevention. Feces from infected animals 

 should be cremated and premises disinfected. Imme- 

 diate isolation of the patient should be the rule, and 

 when death comes the entire carcass should be buried 

 in quicklime. 



DIFFERENTIAL DIAGNOSTIC MARKS OF— 



Enzootic Dysentery 



1. Affects cattle of all ages; calves, young stock, 

 old stock. 



2. Occurs during winter and spring. 



3. Affects animals stabled or on range. 



4. Onset is sudden. 



5. Course of disease is from one to two weeks. 



6. No appetite. 



7. Feces have no abnormal odor. 



8. Feces are granular. 



9. Feces are chocolate colored. 



10. Milk secretion totally absent. 



11. Pertussis is a common complication. 



12. Practically never fatal. 



Coccidial Dysentery 



1. Affects chiefly young stock. 



2. Occurs during grass season. 



3. Affects animals being pastured almost wholly. 



