HOG CHOLERA. 123 



come through this means. The serum produced last 

 year, wherever used in cholera-infected herds, saved 

 over eighty per cent, of the animals. It is easily ap- 

 plied, and its good effects in sick hogs are seen almost 

 immediately. 



That hog cholera will ever be successfully treated 

 with medicine I doubt, but that it will be prevented in 

 time I firmly believe. The whole trend of investiga- 

 tion seems to be in that direction, and I feel sure suc- 

 cess awaits their efforts. Till then I suppose we must 

 make use of the best means at our disposal to combat 

 the disease. 



Page after page has been written as a means of 

 telling hog cholera, but much of it is difficult of com- 

 prehension to the average reader. If you have never 

 had it in your herd you are to be congratulated on 

 your good fortune ; and if you ever do, when you are 

 done with it you may not have as many hogs as you 

 did before, but rest assured of one thing, and that is 

 you will know hog cholera when you see it again. As 

 a rule hogs do not look well for weeks before an attack. 

 At other times it will come like a bolt of lightning from 

 a clear blue sky. The first thing noticeable is a loss of 

 appetite ; the hair will look harsh and dry ; sometimes 

 a slight cough will be noticeable, at other times not. 

 The disease is sometimes of slow development, at other 

 times quite rapid. Instead of the sprightly, rapid 

 movement so characteristic of the young and growing 

 hog, he moves slowly and indifferently; he looks gaunt 

 and tired ; his back is arched, and he moves his hind 

 legs with a dragging motion; his temperature will most 

 likely be high, probably from 104 to 108 the normal 



