CHAPTER VI. 



Diseases Common to the Brain and 

 Nervous System 



CEREBRAL APOPLEXY 



Cerebral apoplexy is a rare disease among cattle. It may be 

 due to degeneration and consequent rupture of the blood vessel in 

 the brain. 



SYMPTOMS AND TREATMENT 



The attack is sudden, the animal in most cases falling as if it 

 had received a blovs^ on the head. It may stagger and reel some 

 time before going down. After falling, there are convulsive move- 

 ments of the legs or the animal sinks into insensibility. There may 

 be remissions in the severity of the symptoms, but the pressure from 

 the continued escape of blood soon causes death. Rest, quiet, fric- 

 tion to the legs and surface, frequent turning of the animal and cold 

 to the head are to be practiced, if treatment is attempted. 



CONGESTION OF THE BRAIN 



There is a form of congestive apoplexy affecting cattle which 

 are in a plethoric condition. The congestion or overfilling with 

 blood, causes pressure on the brain substance and disorganizes its 

 function. It occurs mostly in hot weather. In this disease the 

 symptoms are somewhat similar to those exhibited when the animal 

 has inflammation of the brain, but the onset is more sudden, the 

 duration is shorter and there is less fever. There may be frenzy or 

 coma, or alternations, one with the other. The intelligence is 

 diminished, staring eyes, bracing with the legs, pressing against the 

 stall partition or manger, mucous membranes become red. This 

 condition usuallv terminates in recovery. 



