60 AGRICULTUEAJL EXPERIMENT STATION. [Jan. 



throughout the entire experiment to nine pounds per head ; 

 three pounds of corn meal and three pounds of Chicago 

 gluten meal with either three pounds of wheat bran or with 

 three pounds of dried brewers' grain, for the purpose of com- 

 paring the economical merits of these two articles in connection 

 with the production of milk. 



The daily rations of coarse feed consisted of five pounds 

 of rowen — hay of second cut of upland meadows — and of 

 either a mixed green crop of vetch and oats, or of green 

 soja bean or of green fodder corn. The daily consumption 

 per head of grain feed and of hay, as far as quantity is con- 

 cerned, remained the same in case of every animal during the 

 entire experiment, while that of the green fodder crops was 

 governed by the appetite of each animal on trial. The 

 quantity daily consumed decreased as a rule with their 

 advancing growth, on account of the steady increase of solid 

 matter in the plants. The daily consumption of vetch and 

 oats varied at different feeding periods from 45 to 35 pounds 

 in case of the same animals, and that of soja beans from 44 

 to 38 pounds, while that of green fodder corn varied from 

 50 to 38 pounds in case of different animals (fifth feeding 

 period) . 



A record of the composition and general character of the 

 various fodder constituents of the daily diet will be found 

 farther on. 



Five cows, grades of various descriptions and in different 

 milldng periods, served in the trial. 



The subsequent statement shows the average composition 

 of the daily fodder rations used in the trial during five 

 succeeding feeding periods into which the entire experiment 

 was divided. • 



Statement of the Average Daily Fodder Rations used during 

 the Different Feeding Periods. 



