30 Wyoming Experiment Station. 



Our experiments with first cutting alfalfa hay show higher 

 digestion coefficients for the dry matter, crude protein, and 

 nitrogen-free extract than the average found by other Experi- 

 ment Stations for all cuttings ; in fact the last two constituents 

 approach the maximum. The digestion coefficients for the ash, 

 ether extract, and crude fiber are a little low. Although the 

 first cutting alfalfa with which these experiments were carried 

 on was not from appearances as good as what may be consid- 

 ered good alfalfa hay in this region, it compares very favor- 

 ably with the same class of hay cut in humid regions. 



The average composition of first cutting alfalfa (average 

 of two) is as follows: 



Nitrogen- 

 Ether Crude Crude free 



Water Ash extract fiber protein extract 

 Average 7.23 9.47 1.94 29.78 16.45 35.13 



This gives a nutritive ratio of i 13.19. 



Wyoming second cutting alfalfa shows a greater average 

 digestibility throughout than does the first cutting from forage 

 grown on the same plot of ground the same year. 



The average composition to correspond to the first cutting 

 given is as follows (average of two) : 



Nitrogen- 

 Ether Crude Crude free 



Water Ash extract fiber protein extract 

 Average 7.DO 8.98 1.93 28.40 15.54 38.15 



Tbis gives a nutritive ratio of i 13. 68. 



These figures are given that a comparison may easily be 

 made. 



The average composition of second cutting alfalfa from 

 all experiments is as follows : 



Nitrogen- 

 Ether Crude Crude free 



Water Ash extract fiber protein extract 

 Average 6.44 8.70 1.62 30.80 15.08 37.36 



This gives a nutritive ratio of i 13.68. 



