220 HOG CHOLEKA 



responsibility, for, given a clean herd he is sup- 

 posed to know how to keep it clean. The preven- 

 tion or handling of hog cholera in herds fed on 

 garbage is not different in principle from han- 

 dling the disease in other herds, but there are 

 several difficulties peculiar to the garbage-fed 

 herd that must be overcome. These difficulties are 

 so closely linked up with methods of swine hus- 

 bandry that all must be considered at the same 

 time. 



Should the garbage feeder raise or purchase 

 feeding hogs ! Many considerations enter in, but 

 as a general rule if the herd is to be relatively 

 small, say less than 500, if there is provision 

 for exercise and a little pasture, if warm farrow- 

 ing pens can be provided, and if a supervisor who 

 thoroughly underctands swine breeding can be se- 

 cured, the ^est plan is to raise the pigs. Under 

 ordinary conditions, as the herd is increased in 

 size, raising the pigs becomes relatively less feas- 

 ible. The question of proximity to a good mar- 

 ket for good feeding shoats likewise must be con- 

 sidered, and what we have said in a preceding 

 chapter in regard to handling feeder hogs, applies 

 here as well. Shoats that have been immunized 

 on the farm are by far the safest purchase, and 

 susceptible ones that can be purchased from 

 thrifty farm herds may be immunized without 

 much danger. Purchase of stockyard hogs is ad- 



