10 
N. C. AGRICULTURAL EXPERIMENT STATION. 
day for this digestion will be found in Table III. The amount of solid 
excrement for each day, with its per centage of water and dry matter, is 
given in Table II. 
It has been shown* that where a coarse fodder, rich in carbohydrates 
and comparatively poor in protein—one in which the “ ratio” is wide, is 
fed alone, the digestibility of both carbohydrates and protein are de¬ 
creased. Hence, while an animal may be supported for a considerable 
time on such fodder, there is a loss of a part of the digestible protein of 
both in addition to the loss of “condition ” of the animal. Therefore, in 
all cases where such a fodder is to be consumed it is on the side of econ¬ 
omy and in the interest of the feeder to add Some by-product, as cotton 
seed meal, which is one of the very best to use in order to get the 
most out of the coarse food and feed the animal to the best advantage. 
Just how much meal should be fed with a coarse fodder varies very 
widely. 
1st. According to the ratios existing between the protein and carbo¬ 
hydrates of both coarse food and meal. 
2d. The kind and age of animal which is to consume the food. 
3d. The object of feeding, whether for maintenance, beef, milk or 
work. 
III. COMPARISON OF COMPOSITION AND DIGESTIBILITY OF WHEAT 
STRAW AND COTTON SEED HULLS. 
Since it has been assumed in previously conducted experiments that 
the digestibility of cotton seed hulls is parallel to that of wheat straw 
this comparison has been deemed of sufficient interest to find a place 
here. The data in regard to the hulls being that obtained in the foregoing 
experiment. 
TABLE VI. 
COMPARISON BETWEEN COTTON SEED HULLS AND WHEAT STRAW. 
COTTON SEED HULLS. 
WHEAT STRAW 
• 
Per centage 
composition. 
10 analyses. 
Comp, bv 
F. E. E. 
Per cent, of 
constituents 
digestible. 
Above 
determined. 
Pounds di¬ 
gestible in 
100 of Hulls. 
Per centage 
com position. 
Ct. E. S., ’87. 
6 analyses. 
Per cent, of 
constituents 
digestible. 
(Wolf’s 
Tables.1 
_ _ ' 
Pounds di¬ 
gestible in 
100 of Straw. 
Drv matters. 
90.08 
35.9 
91.22 
Ash . 
2.87 
27.1 
Protein (N x 6.25)... 
4.23 
24.6 
1.04 
3.45 
26 
0.897 
Fat (Ether Extract).. 
2.24 
80.6 
1 81 
1.29 
27 
0.348 
Nitrogen-Free Ex’ct 
33.20 
40.3 
13.38 
37.33 
40 
14.93 
Crude Fiber. 
47.44 
27.1 
12.86 
44.99 
52 
23.39 
Nutritive Ratio. 
29.6 
43.7 
- ———- --- 
_ 
LArmsby’s Manual of Cattle Feeding, Part II, Chap. I. 
