1888.] PUBLIC DOCUMENT — No. 33. 17 



A careful examination of our subsequently tabulated feed- 

 ing records of each cow (Susie, Meg and Dora) , leads appar- 

 ently with much propriety, among others, to the following 

 conclusions : — 



The nutritive value of our dry corn fodder compares well 

 with that of an average quality of English hay ; the same 

 may be said of good corn ensilage in place of from one-half 

 to two-thirds of the customary amount of hay. 



The nutritive value of our dry corn fodder (stover) and of 

 a good corn ensilage, taking into consideration pound for 

 pound of the dry vegetable matter they contain, has proved 

 in our case fully equal, if not superior, to that of the average 

 English hay. 



The nutritive feeding value of carrots, taking into consid- 

 eration pound for pound of the dry matter they contain, ex- 

 ceeds that of the corn ensilage as an ingredient of the daily 

 diet, in place of a part (one-half) of the hay fed. The 

 conclusions thus far stated are in full agreement with those 

 pointed out in our earlier experiments. 



The influence of the various diets used, on the quality of 

 the milk, seems to depend in a controlling degree on the 

 constitutional characteristics of the animal on trial. The 

 effect is not uufrequently in our case the reverse in different 

 animals depending on the same diet. 



The yield of the milk decreased, although at a different 

 rate, in the case of different animals as time advanced. 

 The shrinkage in the daily yield of milk amounted, at the 

 end of the entire experiment, to from 3.2 quarts to 4.9 quarts 

 in case of different cows. The gradual decline in the entire 

 milk record of every cow is only once broken ; namely, dur- 

 ing the sixth feeding period, Feb. 7th to Feb. 21st, when 

 the yield of milk shows an increase of from .7 to 1.9 quarts 

 per day, as compared with that of the preceding period. 

 This change for the better was noticed when ten pounds of 

 hay and thirty-four pounds of carrots were used, under other- 

 wise corresponding circumstances, as a substitute for five 

 pounds of hay and twenty-nine pounds of corn ensilage ; the 

 amount of dry vegetable matter contained in the hay fed 

 with roots and in the hay fed with corn ensilage was prac- 

 tically the same in both instances. The feed of the sixth 



