64 



AGRICULTURAL EXPERIMENT STATION. 



Digestibility of Nitrogen-Free Extractive Matter. 



With a part of these fodders an attempt has tJeen made to 

 ascertain the digestibility of the more vahiable carbohydrate 

 material, viz., the sugars, and starch and other compounds that by 

 treatment with an acid are changed to sugar, crude fiber excepted. 

 In order to compare the digestibility of these compounds with that 

 of the total nitrogen-free extractive matter, determinations of the 

 sugars, starch and other non-nitrogenous material capable of inver- 

 sion to sugar have been made in the feces from several of the 

 fodders, by a method exactly similar to that used for the hays. 



The following tables contain the percentages of starch in the feces, 

 and a comparison of the calculated digestibility of the carbohydrates 

 with that of the total nitrogen-free extractive matter. The term 

 starch is intended to include all material, not sugar, that is inverted 

 by the treatment with an acid. 



XLi .. . 

 XLII... 

 XLUI.. 

 XL... 



L 



XLIV .. 



LI 



XLV ... 

 XXXIX 

 XLVl . 

 XLVil . 



Feces from 



■* l.-ike clover. 

 \\ liite clover . 

 lilue joint . . . 

 Orchard grass 

 Hed top. 



Timothy 



Tiiuotli>' 



Wild u.it grass 

 Witch grass.. 

 ButlBrcup ... . 

 White weed . . . 



In 100 parts water-free substance 





6.44 

 13.74 

 10.73 

 10.. =.0 

 12.44 

 11. 3S 

 11.67 

 12.85 

 11.94 

 5. UN 

 5.ti4 



w 



•73 



a 



3 . 

 £.-=" 



6% 



21.21 

 23.50 

 31.49 

 33 05 

 36.37 

 30.41 

 31.88 

 35.81 

 28.90 

 28.24 

 30.76 



■= t ■ 



■■Z Zl J3 

 Goo 



M 9 



23.29 

 36.89 

 25.41 

 23.78 

 25.49 

 27.23 

 26.80 

 26.41 

 29.23 

 17.47 

 15.49 



