312 
Journal of Agricultural Research 
Vol. VII, No. 7 
Table XII. —Average daily ration (in pounds) consumed per cow in Feeding Experi¬ 
ment I 
Character of ration. 
Hay. 
Bran. 
Cottonseed 
meal. 
Com meal. 
Vegetable- 
ivory meal. 
Com meal. 
Vegetable-ivory meal. 
20.58 
20. 46 
2. 36 
2. 36 
2. 28 
2. 28 
3 - 36 
I 
3 
Daily samples of the grain and ivory meal were taken and preserved 
in glass-stoppered bottles. These were brought to the laboratory for 
analysis at the end of each half of the trial. The hay was sampled three 
times during each half and determinations of moisture made and ali¬ 
quots preserved for analysis. 
Milk samples were taken for five consecutive days in the first, third, and 
fifth weeks of each half of the test and analyzed for fat and total solids. 
The cows were weighed on two consecutive days at the beginning and 
end of each half of the experiment. 
The cows averaged 0.12 of a pound more hay daily while on the corn- 
meal ration. The 1 pound of com meal fed during the vegetable-ivory 
period applied only to two of the cows for periods of 35 days each. 
From the analyses of the materials fed, their digestibility coefficients, 
and the amounts daily consumed, the quantity of digestible organic nutri¬ 
ents received daily per cow was estimated, the results being given in 
Table XIII. 
Table XIII. —Quantity of digestible organic nutrients in the average daily ration of 
cows in Feeding Experiment I 
Character of ration. 
Protein. 
Fat. 
Fiber. 
Nitrogen- 
free extract. 
Total. 
Nutritive 
ratio. 
Com meal. 
Vegetable-ivory meal... 
2, 03 
I. 88 
O- 53 
•43 
4. 07 
4. 29 
8. 86 
9. 17 
15 - 47 
I 5 * 77 
1 : 6. 9 
1 : 7. 6 
It will be noticed that the total digestible carbohydrates were slightly 
greater for the vegetable-ivory ration than for the corn-meal ration. On 
the other hand, protein and fat show a favorable balance for the corn- 
meal ration. 
At the completion of the experiment a distinct gain in herd weight 
was noticed when the corn-meal ration was fed over that of the vegetable- 
ivory ration (Table XIV). 
Table XIV. —Gain or loss (in pounds) in herd weight in Feeding Experiment I 
Character of ration. 
Gain. 
Loss. 
Average per cow. 
Gain. 
Loss. 
Com meal. 
9 i 
15.6 
I. 0 
Vegetable-ivory meal. 
