81 



will be necessary to either add or substitute some feed rather rich in 

 protein. 



The diminution of the straw to 5 Ibs. instead of 10, the increasing 

 of the clover hay from 5 up to 10 Ibs., the increasing of the bran to 

 4 Ibs.. and the addition of 2 Ibs. of oil cake meal, would mean a much 

 better ration for such a cow, and a ration that would probably ressuit 

 in a considerable increase in the flow of milk. Below is given the 

 new ration, worked out in the same way as tihe old : 



This modified ration is apparently still too wide according to 

 the Wolif-Lehmaiin ; it is however quite as narrow as necessary 

 according to the other Standards given, which are probably the 

 more nearly rig-ht. Further, as this ration is made up almost entirely 

 from exceedingly palatable fesds, corn ensilage, clover hay, wheat 

 bran, crushed oats and oil cake meal, is is probable that it is as good 

 a ration as could be fed such a cow and almost certainly more pro- 

 fitable than would be a ration complying more nearly with the require- 

 ments of the Wolff-Lelimann feeding standard, since to narrow the 

 nutritive ratio down to 1 : 4 -.5 would mean the addition of about 3 

 Ibs. more oil cake or else the still further substitution of clover for 

 straw or of clover in the place of part of the ensilage. Our experi- 

 ence here would seem to show that while the Wolff-Lehmann 

 Standards are probably right wKere no attention is paid to the effect 

 of feeds on palatability, they are apparently unnecessarily narrow 

 when easily digestible, highly palatable feeds make up the ration. 

 In this, our experience seems to bear out the findings of the Wis- 

 consin and other investigators both American and European, whose 

 27889-6 



