
a ee orl ae Ny. 
No. 33.] . 113 
table of percentages of dry matter would indicate a variation from 
period to period in the constituents of a given quantity of milk. 
While there is not indication of a constant ratio between the albumi- 
noid consumed and the yield of milk yet in the case of the largest con- 
sumption of albuminoid, the milk yield was also the greatest ; when 
the same amount of albuminoid was consumed in Periods V and VI 
there was a gain of milk in one case and a loss in the other; but Pe 
riod V was a transition period, and the influence of a larger previous 
supply of albuminoid probably exerted an effect on the yield. 
During Period II, hay and bran being fed, and Period VI, ensilage 
being fed, there was a loss in milk yield. During Period III, hay and 
gluten meal fed, the largest gain in milk, and during Period IV, hay 
and meal feeding, also a gain. The indications are here favorable to 
the use of meal as a milk-yielding food, and more particularly to gluten 
meal. The advantage of ensilage asa milk-yielding food is not apparent. 
For the study of the influence of the food, if a any, upon the butter, 
we may use the following figures: 
Fat, calculated 
for milk con- 
PERIOD. Daily milk Totalfat, Totalbutter Fat. Butter, taining 8 per 
yield, lbs. ozs. obtained, ozs. per cons. percent. cent of water. 
ees es Be Son oS 55.06 46.00 45.66 5.26 5.18 5.03 
[i b> ee 52.42 48.54 46.37 5.78 5.54 5.30 
cRNA. 67.27 47.23 35.56 4.62 3.47 4.8 
14h) ee See 53.19 40.72 ao. 7Ta 4.78 4.19 4.61 
3 48. 39.36 30.42 5.07 3.92 4.95 
fe ee 35.235 27.64 26.42 4.9% 4.78 4.89 
aie des- 4-asce . 5 45.82 35.92 35.76 5.4 4.88 43 
By reducing the milk to a uniform water content of eighty-six per 
cent, we eliminate the influence of a varying percentage “of water in 
the natural milk. We find in this column the average to be 4.89 per 
cent, the extremes 5.30 and 4.61 per cent, and the variation 14.2 per 
cent from the average. In Kuhn’s experiment of like character the 
variation was 13.3 per cent from the average. We may thus infer that 
when the milk is calculated to a uniform water content the proportion 
of the fat present under different but full feeding may be practically 
the same. In Kuhn’s case there was a slight increase in the relative 
proportion of fat when palm kernel cake was fed; in our case a slight 
increase when wheat bran was fed. while under an insufficient ration 
during Period V the percentage of fat was greater than under a main- 
tenance ration during Periods III, IV, Vi and VU, and this circum- 
stance but adds force to the general conclusion. 
When, however, we come to the column of total fat contained in the 
daily milk, in ounces, as determined by analysis, we note a wide 
variation, the extremes being 48.54 ounces and 27.64 ounces, or a 
variation from the average of 51 per cent, the fat neither following 
closely the amount of milk yielded nor the ‘albuminoid in the rations. 
We can arrange a new table which will show this. 
Albuminoid Fat yielded, Ounces fat to one 
PERIOD. consunied, - Ibs. pound albumi- 
7 Ibs. noid consumed. 
IR Sete scott.) So's a we we 12.22 49.23 3.86 
SPE SoU Soe ds ecw S26. 9.41 48 .54 5.15 
Ne Ne tae 1.37 46.00 6.24 
a |e niietatdins ats be A 6.56 36 .92 5.62 
NN oe chy ew os 5.76 40.7% 7.07 
(i a RR a 3.69 27.64 7.49 
Ae Fg oa 3.29 39.36 11.96 
[Assem. Doc, No. 33.] 15 
