HOVEN OR BLOAT. 173 



Dissolve (D) in tliree pints hot water and give as a drench — 

 repeat in 16 hours if bowels do not move freely. 



Prognosis. — A large proportion of cases recover when prop- 

 erly treated soon after disease appears. 



Prevention. — A large proportion of these cases may be pre- 

 vented but hoven will appear occasionally under conditions which 

 cannot be prevented. Avoid as fully as possible the conditions 

 that have been cited as causes. There are two methods of turning 

 cattle and sheep on new pasture in the spring or at any season; 

 from one pasture to a richer; or from grass to clover, with rea- 

 sonable safety. First — Turn them on but a few minutes the first 

 day and increase this time each day for a week. Second — Give 

 the cattle or sheep a large ration of the dry food, to which they 

 have been accustomed, on the evening before they are to be turned 

 on ; repeat the large ration of this food the next morning, feeding 

 much later than usual and then turn them out, soon as done eat- 

 ing, which should be after the dew is ofif the grass and not soon 

 after a rain. Under these conditions cattle and sheep may be 

 turned on grass in the spring or on new or different pasture with 

 little risk. Never make such change when the grass is wet from 

 dew or rain. Pastures where the old grass stands quite heavy on 

 the ground and the young grass grows up in such a way that the 

 stock must eat the two together, are much less dangerous than 

 those where the stock gets only the new grass. 



Causes of death. — There is usually carbonic dioxide gas pois- 

 oning; sometimes actual sufifocation; frequently rupture of the 

 stomach or diaphragm. 



