FEEDING SWINE 



309 



in place of part of the corn so as to give the ration more bulk will 

 improve it. A greater variety of feeds will probably also make the 

 ration better." Swine may grind their own grain, as shown in 

 figure 82. 



Fattening Swine. In the corn belt States, which supply a 

 large proportion of the hogs fattened for market, the common 



FIG. 81. A cement feeding floor provided with sanitary substantial troughs is an essential 

 to a well-equipped piggery. (Wisconsin Station.) 



practice is to keep the hogs with fattening steers until three to 

 four weeks before the end of the fattening period, when they are 

 penned and finished for market. As previously shown, the number 

 of hogs put with the steers will vary with the form in which corn 



Fia. 82. The 



'hog motor," a device for making pigs grind the corn they eat. 

 Company, Minneapolis.) 



(Hog Motor 



is fed to the latter; the extra grain which the hogs receive is 

 likewise determined by this factor, and the amount of undigested 

 feed in the droppings of the steers (p. 273). If the steers are fed 

 snapped ear corn or whole shelled corn, much more passes through 

 undigested and becomes available to the hogs in the droppings than 

 if soaked corn, ground corn, or corn and cob meal is fed. If the 



