Nrw York AGRICULTURAL EXPERIMENT STATION. 99 
TABLE XXII.—AN INCREASE IN AMOUNT OF PROTEIN. 
SS SS a a a a ae eee ea} 
AVERAGE PER 
Per 1000 Les. LIVE WEIGHT. Day PER Cow. 




Total 
scaat. | Digest- 3 
mee} ible: | ¥ael “NUE! | wok | rat in 
ganie pro- value. ratio. yield. milk, 
matter. om. 
oO Lbs. Lbs. Cal. Lbs. Lbs. 
= Before | 14.9 2.04 '29,725) 1:7.0 | 22.5 .92 
} 
S After | 15.3°| 2.42 |30,680] 1:6.0 | 22.2 91 
? 
© 
~ 
3 | 
Average of 273 rec- Ss Approxi- Dry Dry Beene 
ords from cows “ mate cost | matter | matter in Be jae 
averag ing 4.5 = fa) Fat in of food in food | food for food for 
5 het milk. for one for one one |b. Hib 
yrs. old and 5.2, 62 Ib. of Ib. of | of milk (|) Oe ae 
months in milk. es 2 milk, milk. solids. solids. 
elt 
aa z 
t 
S 7 Per ct. Cts. Lbs. Lbs. Lbs. 
ay Before 4.1 -69 “0 7.2 4.7 
5 8 
c After 4.1 133) F120 7.6 4.9 

A REDUCTION OF PROTEIN. 
The average from 297 records which cover periods when the 
amount of protein in the ration was reduced give the data in the 
following table. There was, with this reduction, a slight lower- 
ing of the fuel value. The shrinkage in milk yield was at con- 
siderably more than the normal rate. The moderate increase in 
_ live weight was not affected by the change. 
