Methods of Feeding 41} 
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 
= 
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HCHO | 
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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 
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