Value of Various Feeding Stuffs for Swine. 535 



are equal to 1 bu. (56 Ibs.) of corn in pig feeding. Grisdale of the 

 Ottawa Experimental Farms 1 reports that raw potatoes alone will 

 scarcely maintain life in pigs, but given in small quantities they help 

 to keep them in health when other succulent food is lacking. (273) 



876. Artichokes. French of the Oregon Station 2 placed pigs in a 

 field of artichokes, estimated to yield 740 bu. per acre. As the pigs 

 made little gain on the tubers alone, a small allowance of mixed 

 wheat and oats was supplied in addition, about 310 Ibs. of mixed 

 grain being then required to produce 100 Ibs. of gain. In this case 

 the artichokes saved from 150 to 200 Ibs. of grain for each 100 Ibs. of 

 gain made. Sweitzer of the Missouri Station 3 rates artichokes equal 

 to potatoes for pig feeding. Grisdale of the Ottawa Experimental 

 Farms* found artichokes economical and slightly more valuable 

 than potatoes. Altho long grown in a small way and often extolled, 

 no extended feeding trials have yet been made with artichokes, nor 

 does their use by feeders seem to increase. (274) 



877. Sweet potatoes. Trials at several southern stations show 

 that swine do not relish the sweet potato as they do peanuts and 

 chufas, which crops can usually be grown instead to greater advan- 

 tage. Newman and Pickett of the South Carolina Station 5 found 

 that it required over 500 Ibs. of sweet potatoes, when fed alone, 

 to equal 100 Ibs. of corn. Duggar of the Alabama Station, 6 allow- 

 ing pigs to harvest sweet potatoes at will, secured 100 Ibs. of gain by 

 feeding 313 Ibs. of grain additional, thereby saving about 200 Ibs. 

 of grain for each 100 Ibs. of increase while fattening. Duggar 

 states that it is probably advisable to give pigs feeding on sweet 

 potatoes protein-rich feeds, such as cowpeas and peanuts, in ad- 

 dition. (288) 



878. Peanuts. At the Alabama Station 7 Gray, Duggar, and 

 Ridgeway fed 3 lots of 61-lb. pigs for 60 days upon the rations 

 shown in the table on the next page, to determine the value of pea- 

 nuts in supplementing corn for fattening pigs. 



The table shows that pigs fed 3.8 Ibs. corn gained only 0.7 Ib. 

 daily, while those getting 1.6 Ibs. of corn daily and foraging in 

 the peanut field gained 0.9 Ib. Lot III, fed 2 parts corn and 1 part 

 cotton-seed meal while in the peanut field, made slightly larger 

 gains than Lot II on corn and peanuts. It was found that 1 acre 

 of good peanuts was equal to about 3,200 Ibs. of corn in feeding 

 value. When a legume crop like peanuts is foraged by pigs, the 



1 Bui. 57. 8 Bui. 29. 6 Bui. 52. 7 Bui. 143. 



2 Bui. 54. Bui. 51. 8 Bui. 122. 



