33© Veterinary Medicine. 



tually abolished aud nothing whatever passes from the bowels. 

 The patient is likely to be found lying down and it is difficult to 

 get him up, and when raised he moves stiffly and with reluctance. 



In milking cows there may be no symptoms until the animal is 

 excited or fatigued by violent or continued exercise, as a hard 

 run, or a drive of four or five miles. This developes the tremors 

 alike in milch cows and in the mild cases in dry cattle or sheep. 

 The subject stands still and trembles in a striking way, the action 

 resembling the muscular contractions seen after the removal of 

 the hide in an animal newly killed. The head and ears are 

 drooped, movements are uncertain and stiff, and the animal may 

 even drop dead on the spot. 



As the disease advances the inuscular debility becomes so great 

 that the animal lies down if possible, and if once down he seldom 

 rises again. The decubitus is extended, the head being stretched 

 on the ground. There is a most complete apathy, the subject 

 showing no fear, no apprehension, no difjposition to escape or 

 resent injury. The wildest or most timid steer can be freely 

 handled, and there is no disposition to flight or retaliation. The 

 eyes are bloodshot aud become fixed and glazed, winking ceases, 

 the breathing is .slow, pulse infrequent, and temperature often 

 sub-normal. The extremities and surface of the body are cool, 

 the muzzle dry, the coat usually stares, the apathy merges into 

 a complete hebetude, torpor and coma, in which condition the 

 animal often dies on the eighth or tenth day. Violent exercise 

 precipitates the death at once. Recoveries are infrequent and 

 attended by no critical discharge from bowels or kidneys, only by 

 a slow, at first almost imperceptible, resumption of natural action. 



The milder cases, those that show no appreciable symptom 

 when at rest, are seized with trembling or rigor when made to 

 undergo the slightest exertion; they appear haggard, stupid and 

 spiritless, drag their limbs slowly and stiffly and quickly stop 

 from pure weariness and debility. 



The prostration is even more marked in sheep, which often 

 seem unable to rise, or lack the nervous energy to do so. 



Calves tremble while sucking, and will sometimes leave the 

 teat, vomit the contents of the stomach, fall down and perish. 



In Vomiting Animals {pig, dog,) emesis usually occurs, and 

 torpor of the bowels or obstinate constipation is present. Pigs 



