Value of Various Feeding Stuffs for Swine. 



543 



Due to the alfalfa pasture, the lot on corn alone made satisfac- 

 tory and economical gains. The pigs receiving ground bone in addi- 

 tion to the corn required about the same amount of concentrates 

 for 100 Ibs. of gain as those fed corn alone, but had the strongest 

 bones of any. Shorts strengthened the bones somewhat, and tank- 

 age with corn produced much stronger bones than corn alone. (90) 



893. Proprietary stock foods. At the Ottawa Experimental 

 Farms 1 Grisdale fed groups of 4 pigs, ranging in weight from 45 to 

 75 Ibs. each, for 90 days to test the value of certain proprietary 

 stock foods when added to a mixture of half shorts and half mixed 

 ground grains peas, oats, and barley. The results of the trial are 

 shown below: 



Value of proprietary stock foods in porlc production. 



Of those receiving stock food, only Lot IV, fed herbageum, made 

 larger gains than Lot I, fed a straight meal ration. Valuing the 

 mixed meal at $1, skim milk at 15 cents per 100 Ibs., and the stock 

 foods at market prices, the lots receiving stock food made more ex- 

 pensive gains than Lot I. Skim milk at 15 cents per 100 Ibs. lowered 

 the gain-cost materially, and clover and rape pasture to a less de- 

 gree. In this trial the stock food was added to a palatable, well- 

 balanced ration of mixed grains. 



Michaels and Kennedy of the Iowa Station 2 conducted trials 

 with pigs fed corn, with and without some proprietary stock food 



1 Kpt. 1904. - Bui. 113. 



