EXPERIMENT STATION BULLETINS. 



277 



TEST NO. 2. 



Digester Ta7il:(u/e and Com Meal vs. Corn Meal Alone for Fattening 



Pigs. 



In this case the ration for Lot XI consisted of corn meal 9 pounds 

 and tankage 1 pound, the tankage forming but one-tenth of the entire 

 ration. The ration for Lot XII consisted of corn meal only and both 

 rations were fed as a thick slop by adding water. 



The pigs used in this case were somewhat heavier than those of test 

 one at the beginning of the experiment, averaging 155.25 pounds, but 

 were fed to greater weights covering a period of eighty-four days. 



The following table gives the results of this test : 



During the eighty-four days of this test the four pigs of Lot XI con- 

 sumed an average of 4.54 pounds corn meal and .5 pounds tankage per 

 head daily, while increasing in live weight from 156 to 254 

 pounds at the rate of 1.16 pounds per head daily. At the same time 

 the four pigs of Lot XII consumed on an average 4.83 pounds corn 

 meal per head daily, while increasing in live weight from 154.5 pounds 

 to 228.8 pounds at the rate of .88 pounds per head daily. In this test 

 and also in No. 1, it was a noticealDle fact that the" corn meal fed pigs 

 kept pace with the corn meal and tankage fed pigs for a time, but the 

 gains of the latter became increasingly greater as the feeding period 

 advanced. We should not expect the advantages of the balanced ration 

 to show markedly on a short feed. 



Though absolutely greater, the comparative cost of production is less 

 in test 2 where tankage formed but one-tenth of the ration than where 

 it formed one-sixth in test 1. 



TEST NO. 3. 



Digester Tankage for Fattening Swine. 



Tests Xos. 3 and 4, of part 2, differ only from Tests 1 and 2 in that 

 middlings was introduced into both rations. 



In this test the ration for Lot XIII was made up as follows: Middlings 

 20 pounds, corn meal 10 pounds and tankage 3 pounds, the latter form- 

 ing one-eleventh of the ration; the ration of lot XIV consisted of 

 middlings 20 pounds and corn meal 10 pounds. 



The pigs of these two lots, a Duroc Tamworth cross, were put on feed 



