126 MASS. EXPERIMENT STATION BULLETIN 200. 



Table VII. — Chemical Analysis of Feeds used (Per Cent). 



The hay was of good to excellent quahty. It contained a considerable 

 proportion of the finer grasses, together wath some timothy and clover, 

 and was usually cut before it was too ripe. Its fiber percentage was not 

 unduly high, and it contained a reasonable amount of protein. Attention 

 has already been called to the fact that the first sample of oat feed con- 

 tained too large a per cent of middlings to be representative, as is indi- 

 cated by its relatively low fiber and high protein and fat. 



The grain mixtures contained the desired amounts of the several in- 

 gredients, and were of satisfactory composition. 



A study of Table VIII shows that the average cow received the same 

 amount of grain daily durmg each experiment. In case of roughage, from 

 6 to 8 pounds of oat feed were substituted for a Uke amount of hay on a 

 dry matter basis. Because of the dryer condition of the oat feed, it took 

 .5 of a pound less of oat feed in its natural condition to replace a like 

 amount of hay, e.g., 6.5 pounds of oat feed in place of 7 pounds of hay, 

 or 8 pounds of oat feed in place of 8.5 pounds of hay, or 7.64 pounds of 

 oat feed in place of 8.14 pounds of hay. If 8 pounds, of hay in its natural 

 state had been fed in place of 8 pounds of oat feed in its natural state 

 the results should have been slightly more favorable to the oat feed. 



