544 



Feeds and Feeding. 



additional, to ascertain whether the stock food aided in digesting 

 the corn. At the same time other pigs were fed corn in a prac- 

 tical way, some getting stock food additional and others getting none. 

 Three proprietary stock foods were used, viz.: International, Iowa, 

 and Standard. The conclusions were that stock foods did not have 

 any beneficial effect on the digestion, and that a bushel of corn pro- 

 duced as much or more pork when corn was fed alone than it did 

 when stock foods were added to it. (343, 445) 



IV. PASTURE; RAPE; SOILAGE; HAY; SILAGE. 



894. Mixed pasture. The results of trials extending over 12 

 years at the Utah Station 1 to determine the value of pasture con- 

 sisting of alfalfa and mixed grasses, principally the former, for pigs 

 averaging from 60 to 75 Ibs. each at the beginning, are summarized 

 below : 



Value of pasture for fattening pigs. 



*Loss. 



We learn that the pigs on a full grain ration in pens gained 0.9 Ib. 

 each daily and required 484 Ibs. of grain for 100 Ibs. of gain, while 

 those getting a full grain ration on pasture gained 1.2 Ibs. each 

 daily, pasturage effecting a saving of about 15 per ct. in the grain 

 required to produce 100 Ibs. gain. The pastured pigs getting a 

 limited grain ration ate less grain for each 100 Ibs. of gain than 

 when fed a full grain ration, but also made smaller daily gains, the 

 fattening period being thereby lengthened. If the full grain ration 

 on pasture would have fattened pigs in 100 days, the quarter grain 

 ration would have required 245 days. 



Linfield states 2 that pigs fed a limited grain ration on pasture, 

 when later put on full feed, made rapid gains at slightly less cost 

 than those fed a full ration from the start. Hence, for growing 

 pigs to be fattened later, a part grain ration on pasture is an econom- 



1 Bui. 94. 



Loc. cit. 



