96 AGRICULTURAL EXPERIMENT STATION, [Jan. 



reached to from 30 to 36 ounces. This point was obtained 

 at the close of the second month of the observation, 

 November 11. The live weights of the different animals 

 varied at that time from 85 to 95 pounds. The nutritive 

 ratio, i. e., the relative proportion of the digestible nitrogen- 

 containing organic constituents and non-nitrogen-containing 

 organic constituents, calling the former one, in the daily 

 fodder ration, remained practically the same during the first 

 two months ( 1 : 3 ) . 



The composition of the grain feed was changed at the 

 stated advance in the growth of the animal, while the daily 

 quantity of skim-milk per head remained the same as 

 before, — 5 quarts. The above specified grain mixture (I.) 

 was simply replaced by the following, — 



C Corn meal, four weight parts. 



II. < Wheat bran, one weight part. 



C Gluten meal, one weight part. 



beginning with a daily average ration of 32 to 36 ounces 

 per head, and closing with one of 42 to 45 ounces, December 

 30, when their respective live weights varied from 125 to 

 130 pounds. 



The subsequent change in the composition of the daily 

 diet consisted in an increase of the proportion of the corn 

 meal in the daily grain feed. The daily quantity of skim- 

 milk, 5 quarts, remained the same to the end of the experi- 

 ment. An amount of water was added sufficient to satisfy 

 the thirst of the animal. The new grain mixture (III.) 

 consisted of, — 



C Corn meal, six weight parts. 

 III. < Wheat bran, one weight part. 

 C Gluten meal, one weight part. 



The amount consumed per day rose to 48 ounces per 

 head in some instances, toward the close of the experi- 

 ment. 



The entire management of the feeding was divided, as 

 will be noticed, into three periods, as far as the nutritive 

 character of the daily diet was concerned : — 



