454 THE STOCK owner's adviser. 



Institute, Darpart, Russia, in January, 1891, thousands of ex- 

 periments have been made with satisfactory results in all cases. 

 Treatment. — It is a waste of time and money to treat this 

 disease. The time has arrived when this disease should be 

 stamped out, and included in the contagious disease, animal act. 



GRASS DISEASE. 



This disease prevails in different parts of Scotland, and occui'S 

 from the end of April until the middle of June, the period wlien 

 grasses begin to ripen. All 'ages and breeds of animals are alike 

 liable to the disease when put on fields favorable to its develop- 

 ment. It is most frequently seen on light, gravelly land, and 

 especially poor land. Eye grasses are most favorable to the pro- 

 duction of the disease. The animals generally are on pasture 

 about a month before they are attacked. It is always worse on 

 first year's grass. 



Symptoms. — The animal loiters about, feeding occasionally, 

 and if it lies down a characteristic flapping or restless movement 

 of the ears may be observed. If you attempt to drive the animal 

 from the field he will become excited, and generally becomes 

 blind before going very far. There will be purging of a black 

 and watery character. The cow refuses all food and water, the 

 milk suddenly fails, and she grates the teeth. The pulse is 

 accelerated, extremities cold, and the animal blind. The tem- 

 perature is not elevated, and the disease runs a course of three 

 days before the crisis is reached. At this period the animal is 

 intensely excited with violent tremors, bellows fearfully, presses 

 its head against the wall, or, if unfastened, scrambles up against 

 the wall, staggers, falls, and dies. 



Post-Mortem Appearances. — The contents of the manyplies 

 are soft and in a healthy condition. The only lesion observed is 

 an inflammation of the true stomach and bowels, evidently due 

 to some narcotic. 



Treatment. — Treatment is unsatisfactory. When the animal 

 is in good condition, immediate slaughter is to be recommended. 

 This disease has not been seen in America. 



