SECTION XIV. 



DISEASES OF THE BRAIN 

 AND CORD. 



Sheep are subject to many disorders of the brain 

 and cord, but most of these are of parasitic or toxic 

 origin, and very little can be done to alleviate the 

 actual condition. We can, however, by careful 

 autopsies, find the existing cause, and take pre- 

 ventive measures to preclude further extension of 

 the trouble. 



1. Encephalitis. 



Inflammation of the brain. 



This is caused by the invasion of the "gid" 

 parasites; fractures of the skull; exposure, and 

 poisons. 



There is no known treatment that is satisfactory. 



2. Apoplexy. 



Under this heading may be grouped sun stroke, 

 heat stroke, epilepsy, fits and convulsions. 



It is usually of parasitic origin, except in very 

 warm weather and in animals that are abnormally 

 fat. 



Except for the removal of the exciting causes, 

 no treatment is practical. 



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