150 



EXPERLAIENT STATION. 



[Jan. 



The required nutrients were figured on the basis of average 

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

 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 difi^erence in feeding effect. 



The amount of digc^stible nutrients consumed by the average 

 cow, and the amount re(|uired by Haecker's standard, was as 

 follows : — 



Nidricnts consumed (Pounds). 



It will bo 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, 

 in 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 Solids 

 (Per Cent.). 



Fat 

 (Per Cent.). 



Corn meal, 

 Oat, . 



14.18 

 14.00 



5.46 

 5.52 



