Colorado Fodders, 
table xcviii. 
69 
COEEEICIENTS OE DIGESTION EOR THE HEAT VALUES OE THE VARIOUS 
EXTRACTS OE THE SALTBUSH (Atnplcx argCJlfCCl) HAY. 
Heat units 
Heat units 
Heat units 
Coef. 
Consumed 
Voided 
Appropriated 
Eig-hty per cent, alcohol extract 8,619,612 
2,837,650 
5,781,962 
67.07 
Cold water extract . 
. 1,647,934 
1,236,976 
410,956 
24.94 
Hot water and malt extract. . . 
. 3,357,432 
827,330 
2,530,102 
75.37 
1% hydric chlorid extract. 
. 9,900,352 
5,863,227 
4,037,125 
40.78 
1 % sodic hydrate extract. 
. 13,721,409 
8,218,889 
5,502,520 
40.09 
Chlorin, sodic hydrate and sul 
furous acid extract . 
. 8,508,528 
7,999,112 
509,416 
5.99 
The residue or cellulose . 
. 13,449,786 
9,077,472 
4,372,314 
32.51 
59,205,051 
36,060,656 
23,149.533 
39.12 
§154. The coefficient obtained by using the composite samples 
of the bay and feces was 39.16 per cent., the same as we here ob¬ 
tain by calculation from the values obtained for the various extracts 
and the analysis of the fodder. 
§155. The ordinary fodder analysis indicates no reason why 
this saltbush hay should not be, at least, a fairly good fodder. There 
is present more crude proteids than in the average hay, as much ni¬ 
trogen-free extract as in alfalfa hay and less crude fibre than in 
alfalfa hay, timothy hay, native hay or corn fodder. The only ab¬ 
normally abundant constituent is the ash, which amounts to nearly 
one-fifth of the weight of the dry hay, but three-tenths of this is 
sand. This amount though large is less than is found in the dried 
leaves of the sugar beet which are fed with excellent results, to 
both cattle and sheep. The percentage of ash in the dried beet 
leaves, not including the crown, ranges from 23 to 27 and to even 
more than 30 per cent, in the leaves of fodder beets. In this salt¬ 
bush the ash was found to be 19.28 per cent., somewhat less than 
the amount found in our sugar beet leaves. The analysis of this 
ash, shows less chlorin, sulfuric acid and soda than the ash of the 
beet leaves and no more soda than the alfalfa ash. The results of 
the feeding experiment were, however, not favorable, as each of the 
three sheep lost weight, one sheep lost one-half pound, one two 
pounds, and the third six pounds. This loss of six pounds may 
have been due to the individuality of the sheep more than to the 
fodder, but aside from this the results in the other two cases show 
that the fodder is a very poor one. The coefficients of digestion 
obtained for these groups of food elements, i. e., the ash, proteids. 
crude fibre and nitrogen-free extract, show some extreme differ- 
erences, i. c., the coefficient of digestion for the crude fibre as shown 
by the three sheep was 6.02, 1*5.35 3*49 respectively, and the 
sheep with which we obtained a coefficient of 15.35 cent, was the 
