Methods of Feeding 



417 



OTHER METHODS 



Other methods of treatment, such as steaming, roasting, 

 fermenting, malting, and predigesting with various acids 

 and caustics, result unfavorably, because they either 

 destroy or render less available some or all of the nutrients 

 contained in the feed. 



SELF-FEEDERS 



The self-feeder attempts to decrease the labor cost inci- 

 dent to pork production. By this method, once a lot of 

 fattening pigs are on full feed, a correct ration may be 

 put into the bin to last a week or more, and only slight 



Fig. 37. — Small Self-feeder for Hogs. 



attention need be paid to that feeder for several days. 

 The use of the self-feeder has been general in the West 

 for many years and while much labor was saved it was 

 commonly believed to be less economical of feed than hand 

 feeding. Several years ago tests were begun at the Oregon 

 Experiment Station at Corvallis and at the Eastern Oregon 

 Experiment Station at Union to determine just how much 

 loss there was in using the self-feeder. As a result of 

 2e 



