136 Hog Cholera 



new diseases become of sufficient importance that attention should be 

 given to them, I have no doubt the experiment station and the U. S. 

 Dep't. of Agricuhure will call the farmer's attention to them. When 

 hogs are dying in a community in numbers with symptoms of hog chol- 

 era and the lesions of cholera are found on the various organs after 

 death, the thing for the farmer to immediately get interested in is a good 

 anti hog cholera serum used in liberal doses. There are many concerns 

 making serum and because you have immuned your hogs and they con- 

 tinue to die do not be too easily led into believing that you have some 

 other disease than hog cholera. However there are rare cases where 

 hemorrhagic septicemia follows cholera, especially where the quarters 

 are dusty or the weather is wet. Then hemorrhagic septicemia bacterin 

 for swine should be used. See cattle department for the description of 

 this malady. 



There are a multitude of products on the market to prevent hog 

 cholera. No attention should be given to such products or those sup- 

 posed to prevent or cure diseases supposed to closely resemble hog chol- 

 era, when thrifty hogs are dying as they do in hog cholera. To date, 

 most experiment stations and the U. S. Dep't. of Agriculture have not 

 found such diseases and products of sufficient importance to deserve par- 

 ticular attention. 



Cholera may assume an acute or chronic form. That is to say, the 

 hogs may die soon after they take ill or linger for several days. The 

 symptoms do not differ in the two forms except in the length of time the 

 hog lives after it takes sick. 



Hog cholera usually develops in from 4 to 18 days after the germ 

 enters the hogs body. Because you do not find from three to six dead 

 hogs every morning that showed no sickness the previous night, do not 

 form the conclusion you haven't got hog cholera. Tlie hogs may drop 

 off several days apart with hog cholera. The disease usually appears 

 in the acute form but may run into a chronic form in a community and 

 remain in that form in a community for several months. The germ 

 seems to weaken as it passes through several generations. "Wlien a di- 

 sease first appears in a community, the hogs seem to have pretty gener- 

 ally the same symptoms, but after the disease has been at work for some 

 time no two hogs of the same herd may have the same symptoms. The 

 symptoms presented depends upon the organs effected. If the intestinal 

 canal or any other one organ is the seat of the disease, you have intes- 



