1888.] PUBLIC DOCUMENT — No. 33. 11 



OK FEEDIN^G EXPERIME:N^TS. 



I. Feeding Exi^eriments with Milch Cows ; English Hay, Corn Fod- 

 der, Fodder Com, Ensilage, Roots, etc. 



II. Feeding Experiments with Milch Cows; with Green Fodder, 

 Vetch and Oats, Southern Cow Pea, Serradella, etc. 



III. Feeding Experiments ^vith Pigs ; Skim-milk, Corn Meal, Gluten 

 Meal and Wheat Bran. 



I. Feeding Experiments with Milch Cows. 



The feeding experiments with milch cows reported within 

 a few subsequent pages are essentially a continuation of 

 those described in the fourth annual report of the Station 

 ( 1886-1887). To compare the feeding effect of dried fod- 

 der corn, corn fodder (stover), and corn ensilage as a sub- 

 stitute, in whole or in part, for English hay, and that of corn 

 ensilage as compared with that of roots, under otherwise 

 corresponding circumstances, has been the principal object 

 of our work on both occasions. 



The same fodder articles have been used in both trials, 

 with the exception that in the experiments discussed below 

 carrots have been taken instead of sugar beets, which were 

 used in the preceding year. Aside from this temporary 

 modification in the diet, a comparatively new fodder article, 

 the gluten meal, has been added as a temporary ingredient 

 of the daily fodder ration. This particular change in the 

 composition of the feed used was made for the purpose of 

 securing, whenever desired, a closer numerical relation be- 

 tween the digestible nitrogenous and non-nitrogenous or- 

 ganic constituents of the food consumed as compared with 

 that which served in our previous experiments. The gluten 

 meal was chosen from among the various concentrated com- 



