6o 



THE FORAGE AND FIBER CROPS 



AMERICA 



Palatabilit/of timothy hay. This rack shows way timothy hay was eaten by cattle when 

 harvested at different stages of maturity. Each of the four compartments was filled 

 with equal quantities of hay cut at the periods indicated and cattle allowed to eat at will 

 (From photo by Missouri Station) 



substance in each instance, but there was in general also an 

 increase in each of the food nutrients, although the percentage 

 of nitrogenous matter decreased as the plant became ripe. 





 7 



6 

 5 

 4 

 9 



Timothy 



The percentage of large heads of timothy in field not infested by the timothy joint-worm 

 Scale of inches at right 

 (After Webster) 



Data with reference to the digestibility of timothy at dif- 

 ferent stages of maturity are meager, but the indications are 

 that the digestibility does not decrease to any great extent up 



