RELATIVE VALUES OF FEEDING STUFFS 615 



TABLE 176. DIGESTIBILITY OF DRY MATTER BY CATTLE 



In these experiments the digestibility of the maintenance ration 

 appears to have been distinctly higher than that of the heavier rations 

 in Period i, in which the largest proportion of hay was fed. The 

 differences became much less marked as the total feed was progres- 

 sively increased, and as between the two-thirds and full-feed ration 

 was scarcely significant, especially in view of the individual differ- 

 ences in this pair. The effect also decreased as the proportion of 

 grain in the ration was increased, so that on the average of the four 

 periods but little difference is shown with certainty among the three 

 heavier rations. 



Unpublished experiments by Armsby and Fries, in which varying 

 amounts of a uniform mixture of two-thirds grain and one-third hay 

 were fed to steers, afford confirmation of the foregoing results : 



TABLE 177. DIGESTIBILITY OF MIXED RATIONS BY STEERS 



