OAT BY-PRODUCTS FOR FARM STOCK. 



131 



The results of Experiment I have been omitted from the average be- 

 cause of the variation of the lot of oat feed from the recognized standard. 

 The results of Experiments II and III with four and eleven cows, re- 

 spectively, covering periods of five weeks each, show that the substitution 

 of from 7 to 8 pounds of dry matter in the form of oat feed for a like 

 amount of dry matter in the form of a good quality of hay (8 pounds 

 and 7.64 pounds of oat feed in place of 8.5 pounds and 8.14 pounds of hay 

 in natural condition) produced substantially 3 per cent more milk and 

 milk ingredients. 



Table XIII. — Gain or Loss in Live Weight {Pounds). 



During the experiments the cows on the two different rations showed 

 little change in weight. Our object in each experiment was to feed them 

 a little less than was required for maintenance and milk yield, in order 

 to get, so far as possible, the full effect of each ration. In Experiment 

 III some of the cows were considerably advanced in lactation, at which 

 time they are prone to increase somewhat in weight. 



