42 STORRS AGRICULTURAL EXPERIMENT STATION. 
} 
In the dry matter (water-free substance) of flesh there was in 
each group an increase in the fat and a corresponding decrease 
in protein and ash. These differences were greater in the wide 
ration group, as the last line of the table points out. 
The chief differences in composition between the different 
groups when calculated to fresh substance of flesh, are still due 
to the fat. One of the facts brought out very early in our study 
of the composition of animal foods was that water and fat to a 
very great extent replace each other. ‘This is strikingly shown 
in the composition of the flesh of the animals of the wide and 
narrow rations. The protein is nearly the same in each, while 
the flesh of the narrow ration animals contains 1.5 pounds per 
Ioo more water, and 1.6 pounds per too less fat than that of the 
wide ration group. : 
The average differences in composition are pointed out in the 
following table: 
Changes in Weights of Nutrients, with Different Rations. 














a IN EDIBLE PORTION (Flesh). 
° 1 ‘ 
EBA | In Water-free Sub- 
aN 7 by rf stance. 
OR CaRE he cle ser 2 
Seep 
S = om | “Oo eee 
- Gi 8 Hm |< 
oe Ay 
Lncrease over beginning of Exp't. |\-1bs. | V.bs. | Lbs. | Lbs. | Lbs. (Las! 
Wide .ration group, average of 5 
animals, - : Y 2 ~ | $2.12 6.72.4 5.44 | Te24 dee ee 
Narrow ration group, average of 4 
animals, - % > 2 i 14558 8.57 558i Odea .06 
Increase of narrow ration over wide 
ration group, ae oe Bs ee 222 1.85 37 -40 Od. .OI 

The gain in the weight of flesh was enough greater in the ani- 
mals of the narrow ration group to very nearly compensate for 
the lower percentage of fat, so that the weight of fat was nearly 
as great in this group as in the wide ration group. The 
increase in dry matter, water and protein was to have been ex- 
pected from the percentage composition. 
The work is being continued during the present winter 
(1893-4) and practical conclusions are reserved. 


