HOG PRODUCTION 



267 



Grain and other concentrates are usually fed by hand, 

 the amount of the^ ration depending upon the system of 

 feeding followed. A method of feeding now being used with 

 success by many farmers is to furnish the hogs with a constant 

 supply of feed by means of self-feeders. A self-feeder is 

 simply a container for concentrates such as corn, tankage, 

 etc., and is constructed so as to allow the hog to eat as often 

 and as much as it wants. " Hogging down corn " is another 



Lard type of hog. Chester White. (U.S. Dept. of Agriculture.) 



application of the principle of self-feeding. Two advantages 

 are claimed for the use of self feeders; reduction of labor, and 

 economy in the use of feed. The following summary of the 

 results of some feeding trials makes clear the latter point : 



