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AGRICULTURAL BACTERIOLOGY 



may drop out, and even portions of the skin may die and 

 slough off. As a rule, they do not become profitable feed- 

 ing animals even after recovery. 



It is sometimes difficult or impossible to determine from 

 the symptoms alone whether hog cholera is present in a 



Fig. 60. Hog Cholera 

 Hemorrhages on and in the kidney are one of the most characteristic lesions 



herd. A careful post-mortem examination of the dead an- 

 imals is necessary in order to make a conclusive diagnosis. 

 This examination should be made preferably on the car- 

 cass of a sick animal that has been killed, or on one that 

 has just died. If the examination is delayed for a number 



