96 REPORT OF THE CHEMIST OF THE 
Per Cent or DicestiBLe Matrer in CaTriE Foops. 
The chemical composition of foods was given in Table A, and 
in Table B their digestibility, as determined by American inyesti- 
gations. In Table C is shown the actual amount of these various 
foods digested by animals. I have used American figures so far 
as we have them, and drawn from the German tables for the 
others as given in Armsby’s Manual of Cattle Feeding. 
Table C shows the per cent, or pounds of digestible matter in 
100 pounds of the various foods. As an illustration let us take 
under meals, corn meal. We find that in 100 pounds of the 
average corn meal there are 72.14 pounds of dry matter, six and 
thirty-five one-hundredths (6.35) pounds of albuminoids, and so 
on with any other food. 
From Table C it will be an easy matter to estimate pretty 
closely the amount of digestible matter eaten per day by animals, — 
if we know the amount of food they have eaten. Let us suppose 
that a cow is eating fifteen pounds of red clover hay each day, 
In table C find under hay, red clover. Multiply each set of 
figures given for red clover by the amount of hay eaten and we 
‘at once have the amount 'of digestible albuminoids, etc., eaten as 
follows : 
Digestible 
Clover eaten. matter eaten. | 
ounds. 
Dry matter: 2.26.2. Reagae ts meatarpreiiale pena tentar 43.76 x15 6.56 
ALUN OLB. Ve eo ee pesos Uae ieee ane aie 5.95 x15 .89 
Gyide Tbet ss c8 ite ces Se os Bare ee ees ere 12.3615 1.85. 
Nitrogen-free extract ...................4. 21.67 x15 3.25 
i Si 24 te Ge EOE pe IK GE PRS TL A ya el Yee, 1.48 x15 -..22 

In just the same way from this table can we estimate pretty 
closely the amount of digestible matter that is eaten by any 
animal if we only know the pounds of food fed each day. 
ee: 
—_ ., £m 
