SECTION XVII. 



DISEASES OF OBSCURE ORIGIN. 



1. " Nibbling" Disease. 



This disease, also known as "trotting disease," 

 is a very rare affection of sheep in this country, 

 if it occurs here at all, but is common in Germany. 

 The cause has never been fully determined. It 

 was not known in Germany until the fine-wool 

 breeds were introduced into that country. It is 

 most frequent in young rams. 



Symptoms: The first noticeable symptom in a 

 ram is excessive timidity; later, they begin to 

 tremble, and have a very staggery gait. In the 

 latter stages of the disease the animal nibbles 

 itself on the back and loins, and in several weeks 

 to a month, the victim dies of exhaustion. 



Treatment: The most important thing is correct 

 diagnosis. Immediate slaughter is advised, and 

 new blood used in mating. As "gid" produces 

 some similar symptoms, a careful examination 

 must be made to arrive at a correct conclusion. 



2. Louping-ill. 



Mad-staggers or trembles. 



Another obscure disease not found in this coun- 

 try. 



Inflammation of the spinal cord from some un- 

 known cause is thought to be the exciting cause. 

 The trembling, twitching, grinding of teeth and 



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