418 



Western Live-stock Management 



numerous repeated tests it was found that 100 pounds of 

 feed put in the self-feeder would actually make more pork 

 than if fed by hand in the most approved manner. The 

 very great practical value of the self-feeder was therefore 



Fig. 38. — Self-feeder. 



put beyond all question. Later an extension of this system 

 to eliminate the labor of mixing feeds has been put into 

 practice by the Iowa Experiment Station. Several self- 

 feeders in which were placed various ground grains and 

 tankage, each in separate compartments, were provided, 

 and the pigs were allowed to balance their own ration. 



