ee ¥ 
eS LUDYSOR RATIONS FHD-TO MILGHCOWs. 43 
were carefully weighed, and due allowance was made for these 
uneaten residues in estimating the amounts daily eaten. Dur- 
ing the test, usually on the third day, samples of each feeding 
stuff used were carefully taken and at once sent to the labora- 
tory for analysis. From the results of the analyses and the 
weights fed, the total nutrients (protein, fat, nitrogen-free 
extract and fiber) fed each day were calculated. By the use 
of digestion coefficients, estimates were made of the weights of 
digestible nutrients in each day’s ration. 
The names and post-office addresses of the owners of the 
herds studied by the Station are given in the following list, 
together with the dates at which the Station representative was 
at'the farm. At the left, in the first column of figures, is a 
reference number for each test. In the remaining tables, and 
in the discussion, the herds entering into the tests and the 
rations fed are designated by these reference numbers. 
Names and Post-office Addresses of Owners of Herds Studied, 
Dates at which they were Visited, and Reference 
Numbers of Tests. 






cos oF NAME AND Post-OFFICE ADDRESS OF OWNER. DATE oF TEST. 
1894. 
ya i eC. b, Davis, Y antic, - - ~at ec. 10-Decn22: 
eee 2 Heil. WV... F’, Maine, South winuheree - - | Dec. 24-Jan. 5, ’95. 
1895. 
Oia Maes iiaoame. rerd-as No,/27,) /- * : =) | Janey laren 
30, : - | Same Herd as No. 28, - - S - | Jan. 21-Feb. 2. 
74 oe - | I. W. Trowbridge, Putnam, - - - | Feb. 4—Feb. 16. 
Roe sé a Kolbe cadd,.Wapping, - ; - - | Feb, 18—Mar, 2. 
oy ee ye oamertierd:as NO, 3154 - - - - | Mar. 4—Mar. 16. 
Aids o8 - | Same Herd as No. 32, - - = - | Mar. 18—Mar. 30. 
HXPLANATIONS. 
The following brief explanation of nutrients and their uses 
is reprinted from the Report of this Station for 1894: 
Uses of food.—The two chief uses of food are to form the materials of the 
body and make up its wastes, and to yield energy in the form of heat to keep 
the body warm and in the form of muscular and other power for the work it has 
to do. The principal tissue-formers of the food are the protein or nitrogenous 
compounds. They build up and repair the nitrogenous materials, as the muscle 
and bone, and supply the albuminoids of blood, milk, and other fluids. The 
chief fuel ingredients of the food are the carbohydrates (such as sugar, starch, 
etc.,) and fat. These are either consumed in the body or stored as fat to be 
used as occasion demands. 
