106 IIkport of Dkpariment of Animal Husbandry of the 



wcijibl before and a gaiu aftci' the cLange of ration (B, Table 

 XXIX). 



With a reduction of nutrients. — In only 9 of the records there 

 occurred, >yith this same increase of protein, a reduction in the 

 amount of total nutrients. In these few instances there was a 

 rapid diminution of milk flow with a much greater cost of pro- 

 duction. 



AX INCREASE OF THE PROTEIN WHE'N ABOVE 2 LBS. AND LESS THAN 



2.25 LBS. 



There are 56 records which cover periods when this change in 

 the ration was made. There followed a diminution of milk flow 

 at a little less than the normal rate. The gain in live weight, 

 fairly good before, was very little after the change. The data 

 are found in Table XXX. 



With an increase of nutrients. — After an increase of protein, 

 with an increase in the amount of nutrients, in 28 instances 

 there followed ver^^ much less than the usual diminution in 

 milk flow. There was a good rate of increase in live weight 

 before but a moderate loss after the change. See B in Table 

 XXX. 



With a reduction of- nutrients. — When, with the increase of pro- 

 tein, there was a reduction in amount of nutrients in 28 in- 

 stances, the following decrease in milk production was at a 

 faster rate than normal. There was a good rate of gain in 

 weight, but sloAver after the change. 



AN INCREASE OP PROTEIN WHEN BETWEEN 2.25 LBS. AND 2.5 LBS. 



The average data from 72 records which cover periods when 

 this increase in protein content was made are found in Table 

 XXXI. The milk How diminished but very slightly. The live 

 weight increased on the average faster after the change than 

 before. 



With an increase of total nutrients. — Thirty-two records cover 

 periods when with the increase of protein there was an increase 

 of total nutrients. The milk yield was very slightly increased. 

 There was a loss in live weight before the change and a con- 

 siderable gain afterward. 



