New York AGRICULTURAL EXPERIMENT STATION. SY 
TABLE XV.—THE AMOUNT OF NUTRIENTS REDUCED WITH LITTLE CHANGE 


Average of 82 rec- 
ords from~. cows 
averaging 4.7 
yrs. old and 5.7 
months in milk. 
A REDUCTION IN 
e 
For about 18 days before change 
and 18 days after. 
Or 
PROTEIN. 
AVERAGE PER 
PER 1000 LBs. LIVE WEIGHT. DAY PER Cow 
: 
Total 
Toco | bigest- Ps 
digest | “ible | Fuel | NOt’ | muk | Fatin 
ganic —_ | value ratio. | Yield. | milk. 
matter,| ‘%e- | 
ee 




Lbs. Lbs. Cal. Lbs. Lbs. 
Before | 15.4 | 2.12 |30,628) 1:6:9 | 21.3) .93 
After | 14.4 | 2.05 |28,530| 1:6.7 | 20.6 | .90 
Approxi- Dry Dry Digest- 
mate cost |matter | matter in | ible dry 
Fat in of food |infood| foodfor | Matter in 
milk. forone |for one| one ib. food for 
lb. of Ib. of | of milk each lb. 
milk. milk. solids. of milk 
solids. 
Per ct. Cts. Lbs. Lbs. Lbs. 
Before | 4-4 -73 1.0 7.7 5.0 
After | 4-4 | -74 | 1.0 | Te 4.9 
AMOUNT OF 
TOTAL NUTRIENTS WITH AN INCREASE 
OF PROTEIN. 
The following table shows the average from 72 records when 
this change in the ration occurred. 
ras considerably greater than is usual. 
The falling off in milk yield 
The rate of gain in live 
weight was about three-fourths pound per day before the change 
and less than half as fast afterward. There was an increase in 
eest of milk production. 
