96 INVESTIGATION IN MILK PRODUCTION. 
and glossy. The cows employed in the experiment during 
the winter previous showed similar indications of having 
been well nourished. Aside from gaining in weight, and on 
this account presenting a moresmooth appearance, they shed 
their coat early and it had that bright, glossy appearance 
which is recognized among stockmen asa sure index of a 
healthy physical tone. 
Combining the results obtained in the last three trials, 
we have the average daily dry matter consumed and nutri- 
ents digested, and gain made and the average for the three 
years: 
TABLE XVII.—Giving Dry Matter and Nutrients Daily per 1000 Pounds Live 
Weight, and Gain in Weight. 








| 
DIGESTED Daily 
Wear Dry | aa os Gain 
ped F Carbohy- Ether Weight 
| Protein drates Extract 
Belllexasscccssslecss- 1897-8 10.93 68 fs) ats 10 SLY 
IL ORE BICcccccoosnsseco 1897-8 12.08 elie 5.38 .10 SENT 
CO Senpceneenecobd 1898-9 11.08 50 6.72 15 16 
FAS BITE NRAS cisadongo oanabcogcuadbeotoes 11.38 .63 5.75 12 23 
WioltiStandards-c.cccse. css. 18.00 70 8.00 10 





The trials on food of maintenance during the three win- 
ters with barren dry cows show that, with an average of 
11.38 pounds of dry matter daily containing of digestible 
matter, as determined by actual digestion experiments, .63 
of a pound of protein, 5.75 pounds of carbohydrates and .12 
of a pound of ether extract, the cows were amply nourished 
and made a daily average gain of .23 of a pound in live 
weight. While the cows received on an average .63 of a 
pound of protein daily it does not follow that it is the 
minimum amount required since in the last experiment the 
cow received only .5 of a pound with very satisfactory re- 
sults. 
The experiments justify the conclusion that with cows 
at rest in stall in comfortable quarters, a ration of 11.5 of 
dry matter containing of digestible matter, .06 of a pound of 
protein, .6 of apound of carbohydrates and .01 of a pound of 
