160 



EXPERIMENT STATION. 



[Jan. 



week preliminary) at the same time the other three received 

 the wheat bran ration. In the second half of the trial the con- 

 ditions were reversed. 



Data concerning Coivs. 



Duration of the Experiment. 



General Care and Feeding. — The experiment was conducted 

 in the station barn especially set apart for such work. Each 

 animal was kept in a roomy stall, well carded and turned daily 

 into a yard for exercise. The daily feed was given in two 

 portions, and water was kept continuously before each animal. 

 All of the cows were in good condition at the beginning of the 

 trial. 



Weighing. — Each animal was weighed for three consecutive 

 days at the beginning and end of each half of the trial. The 

 weight was taken in the afternoon, as the cows were brought in 

 from the yard, previous to feeding and watering. 



Sampling Feeds. — - The coarse fodders were sampled at the 

 beginning, middle and end of each half of the trial, dry matter 

 determinations made at once, and the several samples com- 

 posited. The grains, including the alfalfa meal, were sampled 

 daily into glass-stoppered bottles, and the composites tested for 



