150 



EXPERIMENT STATION. 



[Jan. 



The required nutrients were figured on the basis of average 

 milk testing 4 per cent., while the average milk produced by 

 the cows under test was 5.71 per cent. fat. Such milk would 

 naturally require more nutrients for its production, but we have 

 no exact method at present on which to base a calculation for 

 milk of different degrees of richness. On the basis of the above 

 calculations it will be seen that both the rations fed were in ex- 

 cess of those required, which, as above explained, would account 

 for the lack of any particular difference in feeding effect. 



The amount of digestible nutrients consumed by the average 

 coiD, and the amoimt required by Haecker's standard, was as 

 follows : — 



Nutrients consumed {Pounds). 



It will be seen that the digestible nutrients fed in each case 

 were noticeably above what was required. 



All of the above evidence goes to show that in case of both 

 rations the cows received more than was actually needed, which, 

 ill itself, is a reasonable explanation of why the corn did not 

 show itself superior in nutritive effect to the oats. 



Average Composition of the Herd Milk. 



Experiment I. 



Character of Ration. 



Total Solid.s 

 (Per Cent.). 



Fat 

 (Per Cent.). 



Corn meal, 

 Oat, . 



14.18 

 14.09 



5.46 

 5.52 



