70 



HATCH EXPERIMENT STATION, 



[Jan. 



was given 150 grams of cotton-seed meal, in the hope of in- 

 creasing the digestibility of the protein in apple pomace.^ 

 For the sake of comparison, the coefficients obtained in both 

 experiments follow : — 



Stimmarj of Ex]}eri7nent (Per Ce?d.'). 



2 



Former Experiment, Hay and Pomace. 



Sheep 1., 



Sheep II 



Sheep III 



67.29 

 73.64 

 70.77 



42.23 



62.64 

 23.55 



55.43 



68.94 

 77.57 



82.73 

 85.65 

 84.53 



44.21 

 43.50 

 42.51 



Average . . 



Present Experiment, Hay, Cotton-seed Meal and 

 Pomace. 



Sheep I., 



SheeiJ II 



Sheep III 



70.60 



65.63 

 71.83 



80.06 



60.91 

 47.20 

 56.11 



3.1.82 

 63.93 

 84.95 



80.31 

 83.59 

 89.53 



43.41 



51.99 

 39.10 

 50.56 



Average, .... 

 Average, both trials, . 



72.51 

 71.50 



54.74 



48.70 



61.5 

 64.40 



84.48 

 84.40 



47.22 

 45.30 



Both experiments were made with the same lot of sheep. 

 The sheep digested the total dry matter of the pomace rather 

 more evenly in the present than in the former trial. It is 

 evident that Sheep I. was unable to utilize as much as the 

 other two sheep. It will be seen that the fiber, extract 

 matter and fat, comprising the larger part of the dry matter 

 of the pomace, were digested to approximately the same 

 degree in both experiments. The protein content of the 

 pomace is small, about 1 per cent., and it has not been pos- 

 sible by present methods to fix its digestibility^ It probably 

 is digested to a considerable degree, although the results do 

 not make it apparent. The several experiments show the 

 pomace to be as digestible as the better grades of corn silage. 

 Its value for feeding purposes will l^e further discussed under 

 a separate heading. 



English Hay. — The hay used in the present series con- 

 sisted of a mixture of timothy and redtop, cut in late bloom, 

 and well cured. Two different analyses of this hay are re- 

 ported in the table of composition. It contained rather less 



1 In determining the digestibiUty of the apple pomace, average digestion coefficients 

 were taken for the cotton-seed meal. See fourteenth report of this station, p. 209. 



