rASTLRING AND SOILING ,163 



recorded American experiments was that of Josiah 

 Quincy, by which he found that 20 cows could be sup- 

 pHed by soihng from 17 acres of land, while 50 acres 

 were necessary to pasture a like number. 



Soiling crops are more frequently used for the larger 

 animals than for swine, and the greater number of ex 

 periments with green food for swine have been with 

 pasturage. A dairy cow may be more successfully 

 maintained by soiling than on pasture, but a hog, kept 

 in a pen and furnished grass only, would prove unprof- 

 itable. This was tested at the Utah station (Bulletin No. 

 40), where shotes confined in pens and fed on green 

 forage exclusively, mainly alfalfa, lost more than yi 

 pound per day during a period of three months. 



This does not at all signify that soiling may not be 

 valuable in swine-rearing, but it emphasizes the impor- 

 tance of supplemental feeding. If grain is the main 

 feed, pasturage or soiling may supplement it, while to 

 hogs on even the best of alfalfa pasture the ear or more 

 of corn that may be given daily will be the supplemen- 

 tary part of the ration. In any case the ratio of feeds 

 should be so adjusted that the hogs will not lose weight 

 or remain at a standstill. The feeder should consider al- 

 ways that any day between weaning and starting to mar- 

 ket in which the hogs do not make some gain is a day 

 lost, if not worse. 



VALUE OF PASTURE AND SOILING 



Results at the experiment stations, so far as reported, 

 show that soiling swine may be entirely profitable. 

 In Utah, where the problem "resolves itself into 



