New YorkK AGRICULTURAL EXPERIMENT STATION, 85 
erate increase of the total nutrients and more pronounced in- 
crease of protein. There was practically no change in live 
weight on the average. See B, Table XII. | 
With reduction of the protein—tIn C, Table XII, are the data 
from the 24 records when with a little increase of the total 
nutrients there was considerable reduction of the protein. But 
very slight shrinkage in the milk flow occurred. There was a 
moderate rate of gain in weight before the change and a more 
rapid one afterward. 
AN INOREASE OF TOTAL NUTRIENTS FROM LESS THAN 15.5 LBS. TO 
MORD THAN 15.5 LBS. 
In the following table are the average data from 116 records 
when this increase in the ration was made. The average milk 
yield suffered none of the usual diminution. There was a slight 
average loss in live weight before the change of ration and a 
gain of over one pound per day per cow afterward. 
With but little change in amount of protein—The average of 47 
records when with the above increase of nutrients there was 
but little change in protein is shown in A of Table XIII. Con- 
siderable increase in milk yield followed. There was consider- 
able loss in live weight before the change and an average gain 
of about two pounds per day afterward. 
With an increase of the protein—The average data from 43 
records are given in B of the same table. In each of these there 
was an increase in the amount of protein averaging about 20 
per ct. The shrinkage in milk flow slightly exceeded the normal 
rate. There was a loss in live weight before the change of 
ration and a good rate of grain afterward. 
With a reduction of the protein—The average of 26 records in 
each of which the amount of protein was reduced is given in C 
of the table. While the amount of digestible protein per day 
was reduced about one-half pound, the average amount did not 
fall below 24 lbs. An increase in milk flow followed the change 
and but slight increase in the cost of production. There was a 
good rate of gain in live weight. 
