EXPERIMENT STATION. 



[Jan. 



end of the experiment; the weights, however, were prubahly 

 sufficient to give an accurate average weight of each animal. 

 Sampling and Testing the Milk. — A composite sample of 

 each cow's milk was made for five consecutive days, and pre- 

 served with bichromate of potash. Great care was used to se- 

 cure representative samples. The total solids and fat were 

 determined by approved gravimetric methods. 



At least a week elapsed after the animals were placed upon 

 full rations before the experiment proper began. 



Average BniJii Balions fed to the Six Cows {Pounds). 



Each of the cows received 3 pounds of bran and 12 pounds 

 of beets daily. One of the cows, Ada^ received only 5 pounds 

 of corn or gluten meal per day, while the others received each 

 pounds. The amount of hay fed differed slightly in the case 

 of individual cows, depending upon their ability to utilize it. 

 The hay was of good quality, containing 9.73 per cent, of crude 

 protein; the brau 10.20 per cent.; the gluten meal 42.73 per 

 cent., and the corn meal 11.36 per cent., all on a dry-matter 

 basis. 



Tt will be seen that the basal ration consisted of hay, beets 

 iiiid bran, and that the variable factor was the corn or gluten 

 meal. 



