418 PRINCIPLES OF ANIMAE NUTRITION. 
Gain, 
4 Metab- l 
olizable pot ig Pals 
astin, ia 
eee of Food, Total, Metab. sb, 
als. Cals. | obem or i 
Ration, 
Cals, 
Pettenkofer & Voit’s Experiments : 
Nothing* .............2-....000. 0 —1098 
450 grms. starch; 16.9 grms. fat ...| 2015 +353 | 1451 72.0 
597 “ «21.2 © 1.) 2661 —198 900 33.8 
700 “ 2052 8 Lee! 8076 +853 | 1951 63.4 
500 “ ‘meat ecnavssasice ctuwmew’s 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 
IN OEIID BE os sce ees cian seers egeltuuate ane ne 0 —436 
76.12 grms. cane-sugar......... 305 —116 320 | 104.9 
104.97“ OE iets tessa 420 —22 414 98 .6 
Nothing’ coc seav sowie cae ca esse 0 —451 
97.3 grms. cane-sugar............ 389 —87 364 93.6 
17.0 “ i ee a sea dedangryfiia dita 68 —374 77 113.2 
143.0 “ BE OSES aie rest eccs 572 +190t}/ 641 | 112.0 
NOEMID Ss sities Be aiathie ativentenein caisie ) —3802 
42.96 grms. starch (digested)...... 177 —138 164 92.6 
Nothing segue s eae ahead ote 0 —354 
57.38 grms. starch (digested)...... 244 —140 214 87.8 
NOG a ce ecaesiie Spaces pitied auavninlnliotee 0 —302° 
94.36 grms. cane-sugar; 67.96 grms. 
starch; 4.7 grms. fat............ 702 +865t| 667 95.0 
300 grms. meat; 63.7 grms. dextrose] 500 —126 
300 “ ead s 559 —84 42 71.1£ 
300 “ “ 115.5 “ e 691 +34 160 83.7f 
Magnus-Levy’s E: ts _| 
: 2121 +850 | 1890 89.1 
Chiefly rice.................,.. 2226 +934 | 2066 92.8 
999 —81 910 91.1 
* Fasting metabolism estimated from previous experiments. 
ft 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 
