Hog Cholera. 



13 



taken to prevent its spread. Proper houses, yards, feeding and 

 care must be provided to keep the herd in a healthy growing condi- 

 tion. 



Healthy hogs naturally resist almost all diseases and have a slight 

 resistance against hog cholera, but filthy crowded pens and yards 

 with lack of exercise and poor feeding overcome this resistance and 

 are a secondary cause of the spread of the disease. 



There are two tilings necessary to keep hog cholera out of the 

 herd. The first is to keep away from the hogs the germ that 

 causes the disease. The second is to increase the resistance of the 

 hog to the organism so that if it does happen to come in contact with 

 the germs it will resist the disease. To provide the necessary pre- 

 cautions, care must be given to the foods, yards, drinking water, 

 trough and floors. If the food is from the slops of boarding houses 

 or hotels it should be cooked for fear that it may contain pieces of 

 raw infected pork that have come from the western packing houses. 



The cooking kills all germs and this reduces the chance of in- 

 fecting the hogs with any disease from this source. Yards that are 

 not well drained and become muddy are not fit for use after the 

 first year because soil becomes so full of organic matter that it be- 



Using the disinfected artificial hog wallow. 



comes filthy, ill smelling and unhealthy. Each, year new yards 

 should be provided and the old ones plowed up and sowed with 

 some forage crop. The wallow hole is one of the most essential 

 features of a hog lot during the summer months and it is always 



