34 RBroHT OF Department of Animal Husbandry of tue 



After feeding at this rate^for a week tbe fat was diminished at 

 the same rate as it had been increased by gradually substitut- 

 ing rice meal and extracted corn meal for normal corn meal 

 and the ground flaxseed. The purpose of these changes was to 

 note the effect of the supply of fat upon milk secretion and pro- 

 tein exchange. 



Cow 2. — ^This cow, whose rate of yield was over 2 lbs. of but- 

 ter per day, was fed essentially the same mixture as was given 

 to the whole Station herd. 



Ration of Cow 2. 



Alfalfa hny 6 lbs. Wheat bran 4i/ilbs. 



Corn silase 40 lbs. Malt sprouts 2y^ lbs. 



Sugar beets 10 lbs. Liuseed meal 2^/4 lbs. 



This ration was accurately weighed from INIarch 29th to April 

 18th inclusive, and during the last four days of this time the 

 necessary observations were made in the collection of excreta 

 and weighing of milk. 



The quantities of each constituent of the rations which were 

 consumed during the various periods, expressed in grams and 

 so arranged as to easily trace the changes, are shown in the 

 succeeding table: 



