44 



MAINE STATE COLLEGE 



In order to facilitate a comparison of these coefficients of diges- 

 tibility they are summarized below. 



Timothy Hay, early cut- 

 '' '' late cut. • 



Wild Oat Grass 



Red Top. ..- 



Blue Joint 



Witch Grass 



Alslke Clover 



60.40 

 58.32 

 68., 3o; 



61.76 

 68.60 

 62.40 

 62.72 



61.06 

 59.37 

 69.07 

 62.96 

 69.80 

 63.64 

 63.59 



48.18 

 33.20 

 52.20 

 33.66 

 48. 7C 

 41.49 

 51.42 



Ph 



58.88 

 49.96 

 67.96 

 62.18 

 70.23 

 52.92 

 68.23 



57.69 

 53.31 

 0.57 

 61.31 

 72.45 

 57.92 

 55.94 





CM =* 



i S 

 V a) 



63.70 

 63.91 

 68.84 

 64.64 

 68.63 

 69.04 

 67.29 



fe 



56.90 

 58.32 

 62.84 

 56.81 

 52.33 

 54.45 

 61.16 



It is but fair to remark that the collection of the feces from the 

 Blue Joint and Witch Grass for so short a time as thi-ee days, ren- 

 ders the coefficients for those days less reliable than in the other 



cases. 



COMPOSITION, DIGESTIBILITY AND YIELD OF EARLY-CUT AND 

 LATE-CUT TIMOTHY. 



In the summer of 1888, a very uniform field of Timothy grass 

 was divided into six plots, each plot being 236 feet long and 47 

 feet wide. Plots 1,3, and 5 were cut July 9th while the Timothy 

 was in early bloom, and plots 2, 3 and 6 were cut July 24th, 

 fifteen days later. In both cases the grass was carefully cured, 

 and the two cuttings were stored separately so that the hay could 

 be re-weighed, which was done on November 28th. About a 

 hundred pounds of each lot of hay was finely chopped for use in 

 the determination of their composition and digestibility. 



The composition of these two hays has already been given, but 

 is re-stated below for the purpose of comparison. 





.a 



OQ 



< 



O 



u 

 0^ 





Nitrogen-free 



extractive 



matter. 



i 









■^ 





5^ 



Timothv, cut July 9th 



5.21 

 3.99 



9.54 

 7.60 



29.19 

 29.14 



51.94 

 55.51 



4 T? 



Timothy, cut July 24th 



3 76 







Difference 



1.22 



1.94 



.05 



-3.57 



.36 





