Colorado Fodders. 
89 
68.6; saltbush, 70.5; corn fodder, 73.8. We see that they are quite 
close together, and as the percentage of the respective fodders solu¬ 
ble in alcohol are not very unlike, it seems just to assume that in 
the absence of any injurious constituent they have approximately 
the same value, but such is not the case, as is indicated by the heat 
values appropriated by the animals, according to which the relative 
values of the three alcoholic extracts stand as i to 1.5 to 1.9 nearly. 
The alfalfa extract having a value of 1.9 and that of the corn fodder 
1.5, if the saltbush extract be taken as i. The second important 
division of the carbohydrates is represented by the hydric chlorid 
extract and here we find very great differences indicated by the co¬ 
efficients of digestion. This portion of the alfalfa has a coefficient 
of 60.2; that of the corn fodder 69.4, while that of the saltbush has 
a coefficient of only 39.9. The percentage of this portion present in 
these fodders was found to be as follows: Alfalfa, 12.2; corn fod¬ 
der, 18.9, and saltbush, 17.0. We observe that the coefficient of 
digestion for this group of substances in the saltbush is low and the 
percentage of it present in the hay is high, from which standpoint it 
would be an. important factor in judging of the value of the fodder. 
The coefficients of digestion found for the corresponding heat values 
were, for the alfalfa, 54.75; for the corn fodder, 63.88, and for the 
saltbush, 40.7. The indication of these coefficients, too, is that this 
portion of the saltbush extract is inferior to that of the other two. 
The heat appropriated by the sheep per gram of this extract con¬ 
sumed, stood in the ratio of 1.3 to 1.8 to 2, the saltbush again be¬ 
ing the lowest and the alfalfa the highest. The deportment of the 
proteids present in these different fodders has been referred to in 
a previous paragraph, where it is shown, though not explicitly 
stated, that the proteids in the saltbush resemble those of the alfalfa 
in their quantity and deportment toward the different solvents, so 
here we find the proteids in the alcoholic extract of the corn fodders 
relatively high and those of the alfalfa and saltbush relatively low, 
but the absolute amount of proteids in the hydric chlorid extract of 
the corn fodder is small and of no significance, while the actual 
weight of the proteids dissolved out of the alfalfa and saltbush, re¬ 
spectively, is much greater than in the case of the corn fodder, but 
it is not sufficiently large to materially modify the statements made 
relative to the value of the carbohydates represented by this portion 
of the fodder. 
§212. The sodic hydrate extracts of the three fodders differ 
greatly; that from the alfalfa shows a coefficient of digestion of 
67.7, but about 43 per cent of the total extract is proteids (N. x 
6.25); that of the corn fodder is poor in proteids and has a coeffi¬ 
cient of only 36.3, while that from the saltbush is richer in proteids, 
about 20 per cent, of the extract consumed being proteids, and has 
