94 



HATCH EXPERIMENT STATION. [Jan. 



Four of the six cows were rather thin in flesh at the begin- 

 ning of the test, and made gains on both rations. The hay 

 period showed a herd increase of 41 pounds over the cotton- 

 seed period. 



Milk and Butter Yields (^Pounds) . 



In this experiment, the results are the reverse of those ob- 

 tained in the first test, the hay period yielding several per 

 cent, more milk, milk solids and fat. Our observations of 

 the animals from day to day during the trial indicated that 

 the cotton-seed feed ration was falling slightly behind the 

 hay ration. The animals, being in the early part of the 

 lactation period, would naturally be more sensitive to the 

 effect of food than in the latter portion of the period of 

 lactation. 



