78 
Rerort or DEPARTMENT OF ANIMAL HUSBANDRY OF THE 
TABLE VI.—LITTLE CHANGE IN AMOUNT OF NUTRIENTS, WITH A REDUCTION 
OF PROTEIN. 


Average of 43 rec- 
ords” from cows 
averaging 5 
yrs. old and 6.8 
months in milk. 
THE AMOUNT OF NUTRIENTS 
| about 14 days before change 
and 18 days after. 
PER 1000 Les. LIVE WEIGHT. 
AVERAGE PER 
Day PERCow. 

Total 
F _ | Digest- a 
diseere) |b ible Fuel | Nutri | wine | Fat in 
ible or tive 
ganic pro- value. ratio. yield. milk. 
tein. 
matter. 
Lbs. Lbs. Cal. Lbs. Lbs. 
Before 15. 5 2.33. 131,193) 126.6, © 2a 20 .86 
After 15.5 1.83 |31,372| 1:8.4 | 20.1 .83 
a ae J 
Approxi- Dry Dry due ae 
mate cost | matter | matter in matter in 
Fat in of food in food | food for food for 
milk. for one for one one lb. each 1b. 
lb. of lb. of of milk of milk 
milk. milk. solids. solids. 
Per ct, Cts. Lbs. Lbs. Lbs. 
Before | 4.1 .70 tet a: 5.2 
we lee eB AR oe a aa 4.1 -69 iG 8.0 5.5 
ABOVE 15.5 LBS. 
BUT LITTLE CHANGED WHEN 
By grouping without regard to the amount of protein those 
records in which the amount of nutrients, when above 15.5 lbs. 
per 1000 Ibs. live weight, was but little changed, the following 
data are found. 
average, considerable reduction in the amount of protein. 
diminution in milk flow was at about twice the usual rate. 
gain in live weight was considerably 
than before. 
There was, in a majority of cases and on the 
‘The 
The 
greater after the change 
