The sample used in the present experiment was taken from a car 

 lot, and it contained rather more protein than the average. The 

 grains are relatively rich in fiber, because of the hulls ; poor in ash, 

 and rich in protein and fat. They are classified as a high grade 

 protein feed. 



(c) Digestibility of the Graixs. 



Dry matter 73 



Protein 71 



Fiber 1 77 



Extract matter ' 70 



Fat 95 



/o 

 79 

 73 

 97 

 80 



95 



% 

 S5 

 85 

 76 



S9 

 83 



The above tests were all made at this station with sheep, and 

 showed the grains to have a high average digestibility. From 200 

 to 250 grams of distillers' grains were usually fed with 600 grams of 

 hay. the digestion coefficients of which had been previously deter- 

 mined. The fiber in the different samples of grains showed marked 

 variations in digestibility in common with all feeds of a similar 

 character. While it is generally recognized that nitrogenous feed 

 stutTs do not aftect the digestibility of the coarse fodders they sup- 

 plement, it seems reasonable to suppose that in these experiments 

 the addition of the grains to the hay ration resulted in increasing 

 the digestibility of the fiber in the hay, which accounts in the 

 majority of cases for the apparently very high digestion fiber co- 

 efficient obtained for the grains. Admitting this to be the case, the 

 fact still remains that while the digestive coefficient for the fiber of 

 the distillers' grains has proved to be of rather an uncertain quantity, 

 it must be regarded as relatively high. 



