trient. This difference amounted in all to five and eight-tenths 

 pounds of dry matter. He also gained two and twenty-five one- 

 hundredths pounds more in live weight than Pig A. 



The pigs were weighed each day, at the same hour, and 

 showed a continued increase in weight, amounting in all to 

 three and seventy-five one-hundredths pounds for Pig A, and six 

 pounds for Pig B. 



Pig A did not eat readily, and on two occasions his daily 

 rations had to be reduced below that originally planned for him. 

 Pig B ate freely at each feeding and consumed the full ration 

 planned for the experiment, and apparently would have eaten 

 more if it had been given him. This fact was probably owing 

 to the greater digestibility of the ration. 



This greater digestibility of the skim-milk ration was no- 

 ticeable for each nutrient ; but especially so for the crude fibre, 

 as the following table of percentages of digestibility will show: 



TABLE IV. 



To be sure the crude fibre does not occur in large quanti- 

 ties in the food of pigs, yet there was a difference in the dung 

 of the two pigs, apparent to the eye. The dung from Pig A was 

 dry and hard and contained many undigested hulls or scales 

 from the middlings and corn meal, while Pig B passed a soft 

 dung. 



The nutritive ratios calculated from the actually digested 

 nutrients vary but slightly in the two rations, being i to 6.17 for 

 the corn meal and middlings, and i to 6.27 for the corn meal 

 and skim-milk. 



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