360 SWINE IN AMERICA 



less than one-half the gain made by a ration of one-third 

 soy beans and two-thirds corn, one-half as much as mid- 

 dlings and corn, and but little more than one-half as 

 much as tankage and corn. 



7. Corn meal alone impaired the digestive capacity 

 of the pigs as shown by the feed consumed, which was 

 320 pounds less than any other lot consumed. 



8. The longer the pigs were fed on corn alone the 

 more inefficient it became, requiring' 12 19 pounds feed 

 per 100 pounds of gain during the last week of the test 

 against 500 pounds the first week, and an average of 

 557 pounds. 



9. Corn meal alone produced poor appetites, light 

 bone, deficient development in valuable portions of the 

 carcass, and a general state of unthrift as shown by the 

 hair, skin and hungry look of the animals. 



10. The gains on pigs fed under the conditions of 

 this test cost $5.01 per ioo pounds where corn meal 

 alone was used, $3.44 with one-half corn meal and one- 

 half middlings, $3.59 in the lot receiving two-thirds 

 corn meal and one-third soy bean meal, and $3.71 where 

 five-sixths corn and one-sixth digester tankage was fed. 



In Indiana Bulletin No. 126 Skinner records a test in 

 which two lots of four 84-pound pigs were fed 70 

 days — one lot on five parts corn meal and one part lin- 

 seed meal and the other lot on five parts corn meal and 

 one part soy bean meal. The cost of the feed was fig- 

 ured at $18 per ton for corn meal and $30 per ton for 

 the linseed and soy bean meal. The cost of 100 pounds 

 of gain on the linseed meal lot was $3.82, and on the soy 



