98 THE CONNECTICUT AGRICULTUEAL 



The very large proportion of protein in the mangolds is note- 

 worthy, and indicates that much of it belongs to nitrates, amides, 

 and other non-albuminoid nitrogenous com2:)ounds. 



Computing the percentage composition of the stover actually 

 eaten we get the following results : — 



Dry matter of Dry matter of Dry matter of Percentage com- 



stover fed out. stover uneaten. stover eaten. position of dry 



(By diflference.) matter of stover 

 lbs. lbs. lbs. eaten. 



Ash 0.44 0.15 0.29 5.21 



Protein 0.72 0.13 0.59 10.59 



Crude fiber 2.74 0.80 1.94 34.83 



N. fr. extract 3.67 1.06 2.61 46.86 



Fat 0.17 0.03 0.14 2.51 



7.74 2.17 5,57 100.00 



No samples could be obtained of the bran, malt sprouts, or 

 cotton seed meal used, and therefore the averages of the digestion 

 coefficients of these substances are applied to the mixture of the 

 three. The coetiicients for malt sprouts are only estimates, no 

 determinations of their digestibility having yet been made, and 

 the same is true of those for brewers' grains. Those for cotton 

 seed meal are results recently obtained by Wolff* in experiments 

 on sheep, with " decorticated" cotton-seed meal, and are notably 

 higher than those previously obtained with a sample which was 

 not " decorticated." 



Digestion Coefficients. 



Protein. Crude fiber. N. fr. extract. Fat. 



Hay -.. 60 .„ .. 50 



Stover... 50 .. .. 30 



Brewers' grains, , 85 .. .. 80 



Wheat bran 88 20 80 80 



Cotton seed meal 85 95 88 



Malt sprouts 80 .. .. 80 



Average for " meal" 84 10(?) 90 83 



ri-\ 



The roots are assumed to be entirely digestible and the digesti- 

 ble crude fiber and nitrogen-free extract of the brewers' grains 

 and malt sprouts are assumed to equal the total nitrogen-free 

 extract. On the basis of these coefficients, the dry matter of the 

 fodders contained the following amounts of digestible matters : — 



Protein. Carbliydrates. Fat. 



per cent. per cent. per cent. 



Hay 7.93 45.04 0.90 



Stovcreaten 5.29 46.86 0.75 



Brewer.s' grains 18.70 53.40 2.90 



"Meal" 21.99 48.04 4.82 



Mangolds 26.36 60.17 0.82 



Turnips 12.14 80.66 0.84 



* Landw. Versuchs-Stationen, .\xvii, 226. * 



