1892.] 



PUBLIC DOCUMENT— No. 33. 



35 



Fertilizing Constituents. 

 Nitrogen, 15 cents per pound ; phosphoric acid, 5^ cents ; potassium oxide, 4£ cents. 



3. Mode of Feeding. 



The daily grain feed ration contained per head throughout 

 the entire experiment three pounds of corn meal and three 

 pounds of wheat bran. To these were added, per head, at 

 different stages of our observation, either three pounds of 

 gluten meal, or three pounds of old-process linseed meal, or 

 three pounds of cotton-seed meal, to complete the grain feed 

 part of the daily diet. One-half of the grain feed was fed 

 with some of the coarse feed at the time of milking in the 

 morning and the other half in a similar way during milking 

 in the evening. The remainder of the coarse fodder was 

 given at noon and after milking in the evening. 



The consumption of the coarse fodder constituents of 

 daily diet, as far as quantity is concerned, was in most in- 

 stances controlled by the appetite of each animal. To satisfy 

 the latter, a small excess was offered and the remaining por- 

 tion subsequently weighed back. This practice was adopted, 

 in particular, in case of rowen when fed alone as coarse feed, 

 and in case of mixed ensilage and of corn stover. Five 

 pounds of rowen, however, were always fed per day to each 

 cow whenever the mixed ensilage of corn and soja bean 

 formed a prominent part of their daily diet. The daily 

 fodder rations, which are described below in detail, repre- 

 sent the average composition of the daily diet used, per head, 

 during the different succeeding feeding periods. 



The subsequent record of the cost of the different fodder 

 ingredients used in the daily fodder ration can assist in 

 recognizing the basis for our calculations of the cost of the 

 latter. 



