New York AGricuLtuRAL EXPprRIMENT STATION. 93 
With a reduction of protein—The average from 33 records 
when there was a reduction of protein,as well as of total nutri- 
ents is shown in C of the same table. These cows were some- 
what younger and the stage of lactation a little later than with 
the others. The shrinkage in milk flow was at about twice the 
normal rate for this stage of lactation. There was a good gain 
in weight before the change but much less afterward. 
REDUCING THE AMOUNT OF NUTRIENTS FROM ABOVD 15.5 LBS. TO 
LESS THAN THAT AMOUNT. 
Table XIX shows the average from 86 records when this 
reduction in the amount of nutrients was made. The shrinkage 
in milk flow was at twice the normal rate under a favorable 
ration. There ’was an average gain in weight of about three- 
fourths pound per day before and none after the change of 
ration. | 
With an increase of protein.—In 45 of the above records there 
was an increase of protein. These show an average falling off 
in milk production slightly greater than normally occurs. The 
average gain in weight was at the rate of about one pound per 
day before the change of ration and less than half as much after- 
ward. (B, Table XIX.) 
With a reduction of protein.—In 41 records there was a reduc- 
tion of the protein. These show a shrinkage in milk flow at 
about three times the normal rate. There was a moderate gain 
in live weight before and considerable loss after the change of 
ration. (C, Table XIX.) 
REDUCING THE AMOUNT OF NUTRIENTS TO NOT LESS THAN 15.5 LBs. 
The averages from 50 records, each of which covers a period 
when this reduction of nutrients was made, are found in Table 
XX. There was, on the average, considerable reduction of pro- 
tein. The milk flow diminished somewhat more rapidly than 
usual. The rate of increase in live weight was a good one but 
somewhat slower after the change of ration. 
