154 RESULTS OF EXPERIMENTS IN SWINE FEEDING 



Feeds were valued as follows: 



Corn, 43 cents per 56 pounds, or 76.8 cents per hundred- 

 weight. 



Barley, 35 cents per bushel, or 72.0 cents per hundred- 

 weight. 



Shorts, $1.8.00 per ton, or 90 cents per hundred-weight. 



Meat meal, $35.00 per ton, or $1.75 per hundred- weight. 



Tankage, $33.00 per ton, or $1.65 per hundred-weight. 



According to these values, the cost of 100 pounds gain was 

 as follows: lot 1, $3.15; lot 2, $3.56; lot 3, $3.21; lot 4, 

 $3.41. 



Conclusion. It will be noted that the group fed corn alone 

 made the smallest daily gains and the most expensive gains. 



The cheapest gains were made by the lot fed corn, barley, 

 and shorts, though this lot stood third in rate of gain. 



The largest gains were 'made by the meat meal group, but 

 the high price of the meat meal runs up the cost out of pro- 

 portion to the rate of gain. 



In this experiment, meat meal proved superior to tankage 

 as a supplementary feed with corn. 



Meat Meal. A second experiment by the Iowa Experi- 

 ment Station was conducted with different proportions of 

 Armour's meat meal with corn as compared with corn alone. 

 Thirty-six pigs, averaging 137 pounds in weight, were divided 

 into four groups and fed 100 days. 



Lot 1. Corn meal 7 parts, meat meal 1 part. 



Lot 2. Corn meal 8% parts, meat meal 1 part. 



Lot 3. Corn meal 10 parts, meat meal 1 part. 



Lot 4. Corn meal alone. 



The average daily gain per pig, the feed consumed per 

 100 pounds gain, and the cost of 100 pounds gain were as 

 follows : 



