454 PRINCIPLES OF ANIMAL NUTRITION. 
Com- 
3 Com- | Metab-| puted 
a us i i Per- 
: Food neive. |gbuted, |gaable) Main: | Excess | Gain, | cent- 
4 : Ratio. |Metab-| of | Re- | Gals’ | Cale. | age 
& 1: E A ‘als. Utiliza- 
a olism, | Food, | quire- tion. 
rl Cals. Cals. | ment, 
Cals. 
Te | RACC yess cd teases os 15.4 | 2607 | 7157 | 2865 | 4292 | 3464 | 80.7 
Ds Perera ok ai thaeireets 14.1 | 1621 | 7167 | 1781 | 5386 | 4048 | 75.2 
III | Barley............ 9.3 | 23886 | 5125 | 2622 | 2503 | 1774 70.9 
IV | Rice, flesh-meal 
and whey....... 2.4 | 2111 | 6129 | 2320 | 3809 | 2556 | 67.1 
It is interesting to note that the utilization as thus computed 
diminishes as the proportion of protein in the ration increases, a 
result which the low average figures obtained on pp. 427 and 450 
for the availability and the percentage utilization of the proteids 
would lead us to expect. Obviously, however, too much value 
should not be attached-to such computations as the above. 
Kornauth & Arche * in an investigation on the feeding value of 
sockle have also made respiration experiments with a swine. The 
food consisted in Period II of cockle, barley, and maize, and in 
Period III of rape-cake, barley, and maize, the amounts of the 
several nutrients actually digested being nearly the same in the. 
two periods. In each period two respiration experiments were 
made which gave concordant results. The following table contains 
the average results for each period computed on the same basis as in 
the experiments of Meissl, Strohmer & Lorenz. No fasting experi- 
ments having been made, the average results of the experiments by 
the last-named authors have been used, the average live weight of 
50 kgs. being taken as the basis. 
Com- 
Esti-_ | Metab- | puted 
Nutri- | mated | olizable} Main- Per- 
2 tive | Fasting] Energy | tenance| Excess Gain, 
Hers Ratio. |Metab-| of | Re- | Food, | Cals’ | Gein: 
1: olism, | Food, | quire- | Cals. tion, 
Cals. | Cals. | ment, 
Cals. 
| Experiment. 
Cockle, barley, and| . 
HRI occa ce ose 6.7 | 1296 | 3057 | 1424 | 1633 | 1170 | 71. 
III | Rape-cake, antes, aa 
and maize. 6.2 | 1296 | 3101 | 1424 | 1677 | 1095 | 65.3 
* Landw. Vers. Stat., 40, 177. 
