ON THE EQUIVALENCY OF STARCH AND SUGAR IN FOOD. 431 
Table VIII.—Showing the average amount of total food or constituents 
consumed, to produce 100 lbs. of increase . 
[Quantities in lbs. and tenths.] 
s 
i) 
1. 
2. 
3. 
4. 
Description of the foods. 
Fresh 
food. 
Gross 
dry 
matter. 
Dry 
organic 
matter. 
Non- 
nitro- 
genous 
sub¬ 
stance. 
Nitro¬ 
genous 
sub¬ 
stance 
Nitrogen. 
Mineral matter. 
In fixed 
quantity. 
Ad libitum. 
1 „ 
h- 
h 
480 
503 
506 
468 
42 ; 
425 
439 
417 
411-8 
410:2 
1251 
401-8 
330-5 
329-2 
3506 
319-8 
81- 3 
81-0 
74-5 
82- 0 
12-90 
12- 85 
11-82 
13- 01 
15-85 
15-25 
14-51 
14-67 
]. Bran. 
J Lentils. 
IBran. 
f Lentils. 
1 Bran. 
None . 
f Sugar . 
| Starch . 
Sugar 
Starch 
f Lentils' 
j Bran 
1 Sugar 
[ Starch _ 
Means.... 
489 
427 
412-2 
332-5 
79-7 
12-65 
15-07 
Mean of 12 previous experiments. 
583 
511 
488-3 
376-3 
111-9 
17-77 
23-20 
. 
a .. 
562 
480 
461-2 
355-9 
909 
16-98 
18-93 
»» 
5 „ 
»} 
... 
554 
458 
429-7 
386-6 
93-1 
15-01 
28-77 
Looking more closely to the figures in Table VII., it is seen, that, except- 
®P e , n 4, the amount of nitrogen or nitrogenous constituents consume 
form ^ b3 ‘ bve-weight per week Avas rather less than in the average o 
Ca cr e *P er i°ient8; it was however greater than in several of the m 1V1 
tuir i t lose f° rmer experiments, especially where the cereal grains con - 
IS h , e Chi,!f bulk of the food, as has already been alluded to. In fact, 
whl "# die amount of nitrogen consumed in pens 1, 2 and 3, was less 
r . a , e .* 1Q animals took as much of it as they chose to eat, yet even in 
n ®, ," as greater than in the very frequent fattening food ot the pig. 
luitlrWi Larloy-irietvl, in which however the proportion ol nitrogen » w 
u, . n over diat which is most favourable for the increase of the iat- 
a 8 - ,>lg : i u. 
W, 8 ? 10 ',’- 1 ppn 2 ’ with one-third of the total food Starch, about I $ lb. more 
Ih-b 18 c °wumed weekly per 100 lbs. live-weigbt of the animal * n 
^"'thoo.third of it Sugar. But we find, that excluding the.no.sture 
which there was more in the Starch than the g. > 
two Cla '/y organic substance consumed are absolutely ulen * 
A 1 i 8 "bvioua, then, that the animals having in the two pens only 
Ui(.u VMfl tk,| d* as much material in their lentils and bran as 
onc-third f C ?i! ed fop » tlie further demand, amounting to one- ■ a . identical 
amoL^? tbe total food, was fulfilled in the respective cases by ldent,c 
practical!* • !'' < !‘- v su 'stance of the Sugar and the Starch. These 
animal i V^tical iu their capacity of meeting the mixed w 
tion 0 r b)r non-nitrogenous substance. In pen 3, the week j c 
‘on-mtrogenous substance per 100 lbs. live-weigbt is rather g 
