BULLETIN No. 87d. 
17 
The nutritive ratio of this silage is rather wide. Its digestibility 
was determined to preface those of raw and roasted cotton-seed, 
w T hich could not be fed alone, and also to use in a study of the 
digestibility of rations of cotton seed meal and corn silage, which 
follow. 
6. DIGESTION OF RAW COTTON-SEED AND SILAGE 
By Brindle Cow. 
Date of First Experiment, February, 1892. 
Daily ration, 12 pounds silage, 4J pounds raw cotton-seed. 
Total period, 21 days, 13 days after proportions of seed and silage 
were settled. 
Feces collected, last 6 days. 
The sample of silage for analysis w^as taken and treated the same 
as for first determination. Two ounces of cotton-seed were put into 
an air-tight jar at each feed for samples to be analysed. 
Date of Second Experiment, February and March, 1892. 
Ration, same as above. 
Feces collected for 6 days, with only one day intervening between 
abo^fe first experiment and second. 
Samples taken for silage, same as above. \ 
An attempt was made to determine digestibility of raw r seed 
directly, when it was found that the heifer would eat enough seed 
to support life, but after eight days the physical effect of the seed 
was too great, and the heifer stopped eating. Following this, silage 
was substituted, and the determination on silage made to precede 
that of silage and raw seed. 
Analytical and Other Data for Calculating the Coefficients of Digesti¬ 
bility. See Tables XI and XII. 
2 
