418 PRINCIPLES OF ANIMAL NUTRITION. 
Gain. 
Metab- i 
olizable me Poa 
Food. mergy asting vale 
Metab- | ability, 
Nene Total, olen: or | Per Cent. 
js Basal 
° Ration, 
Cals. 
Pettenkofer & Voit's Experiments - 
Nothing yas yee cst see Ge weoan % 0 —1098 
450 grms. starch; 16.9 grms. fat ...| 2015 +353 1451 72.0 
597 “ ice” ties “ ..| 2661 —198 900 33.8 
700 “ ES BOD St « ..| 8076 +853 1951 63.4 
500°"? meat sn ee ed ee nay oes 442 —554 
500 ‘* meat; 200 grms. starch| 1316 +137 691 79.1 
500 grms. meat; 200 grms. dextrose} 1180 +108 662 89.7 
Rubner’s Experiments : 
Nothinge: (ss veates paeen mak ea 0 —436 
76.12 grms. cane-sugar......... 305 —116 320 104.9 
104.97 “ i OSS saikuo neuen 420 = 92 414 98.6 
INOUMINBY = sy u. 2a lant eae a tee cna eee 0 —451 
97.3 grms. cane-sugar............ 389 —87 364 93.6 
17.0 “ Ne er ere 68 —374 77 | 113.2 
143.0 “ Bei ep abe oe dicted 572 +1907] 641 112.0 
INGUIN 5556 ee 8 ak eect ate 0 —302 
42.96 grms. starch (digested)...... 177 —138 164 92.6 
NOthing: tis sycecsee ede kes een esas 0 —354 
57.38 grms. starch (digested)...... 244 —140 214 87.8 
NOtHIN By cui daolane boa 4a faeee ocd 0 —302 
94.36 grms. cane-sugar; 67.96 grms. 
starch; 4.7 grms. fat............ 702 +365t 667 95.0 
300 grms. meat; 63.7 grms. dextrose 500 —126 
300 “ “79.7 ot 559 —84 42 71.1f 
300 “ “115.5 “ a 691 +34 160 83.7f 
Magnus-Levy’s Experiments : 
Chiefly rice.................0.. 2226 +934 2066 92. 
999 —81 910 91. 
4S 2121 +850 | 1890 89. 
( 
OO 
* Fasting metabolism estimated from previous experiments. 
t Gain of carbon assumed to be all in the form of fat. 
t Of dextrose added. 
Experiments on Herbivora.—Comparatively few experiments 
have been reported from which the net availability of the food of 
herbivorous animals can be computed, and as regards the common 
farm animals in particular there is an almost entire lack of data, 
although numerous experiments upon the relative value of various 
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