DIGESTIBILITY OF SOME ANIMAL FATS. 19 



Data of digestion experiments with-iasal ration — Continued. 





Weight. 



Water. 



Protein. 



Fat. 



Carbo- 

 hydrates. 



Ash. 



Experiment No. 268, subject R. L. S.: 



Blanc mange without added fat 



Grams. 



2,054.0 



424.0 



1,225.0 



86.0 



Grams. 



1,154.5 



33.9 



1,065.8 



Grams. 

 40.5 

 46.7 

 12.2 



Grams. 

 12.9 



12.7 



Grams. 



836.0 



322.2 



147.0 



86.0 



Grams. 

 10.1 

 8.5 



Fruit 























3, 789. 

 93.0 



2,254.2 



99.4 



28.8 

 70.6 



25.6 

 16.8 

 8.8 



1, 391. 2 



38.5 



1,352.7 



18.6 





8.9 







9.7 

















71.0 



34.4 



97.2 



52.2 











Experiment No. 269, subject 0. E. S.: 

 Blanc mange, without added fat 



2,222.0 

 365.0 

 636.0 

 226.0 



1,249.0 



29.2 



553.3 



43.8 

 40.1 

 6.4 



14.0 

 11.0 



904.3 

 277.4 

 76.3 

 226.0 



10.9 

 7.3 



Fruit 





















Total food consumed 



3,449.0 

 110.0 



1,831.5 



90.3 

 33.5 

 56.8 



25.0 

 11.7 

 13.3 



1,484.0 



55.2 



1.428.8 



18.2 

 9.6 







8.6 

















62.9 



53.2 



96.3 



47.3 











Average food consumed per subject per day 



1,264.1 



720.1 



33.3 



8.8 



495.7 



6.3 



Samples of the blanc mange (containing only small amounts of milk 

 fat) and of the wheat biscuit (containing cereal fat) were analyzed, 

 and in the calculation it has been assumed on the basis of a previous 

 investigation x that 5 per cent of the milk fat and 10 per cent of the 

 wheat fat are undigested. The difference between the total ether 

 extract of the feces and the amount of unutilized fat (5 per cent of 

 milk fat and 10 per cent of wheat fat) is taken to be the amount of 

 metabolic products occurring in the ether extract. In the following 

 table are given the necessary data from the four basal ration experi- 

 ments for obtaining the average percentage of metabolic products 

 occurring in the ether extract of the feces. This value is a percentage 

 of the weight of water-free feces. 



Allowance for metabolic products. 



Experi- 

 ment No. 

 269, sub- 

 ject 

 O. E. S. 



Weight of water-free feces 



Milk fat in blanc mange 



Vegetable fat in wheat biscuit 



'I 01 ii ether extract of feces 



[Indigested milk fat in feces (estimated) 



Undigested wheal tai in feces (estimated; 



Metabolic products in ether extract of feces 



l'iT«:nt of water-free few; computed a:; metabolic prod 

 ucts in ether extract ol feces 



Experi- 



Experi- 



Experi- 



ment No. 



ment No. 



ment No. 



266, sub- 



267, sub- 



268, sub- 



ject 



ject 



ject 



II. F. B. 



D. G. G. 



R.L. S. 



Grams. 



Grams. 



Grams. 



130.0 



87.0 



93.0 



14.5 



12.1 



12.9 



17.8 



10.0 



12.7 



11.8 



8.3 



10.8 



.7 



.6 



.6 



1.8 



1.0 



1.3 



9.3 



6.7 



14.9 



6.84 



7.70 



16.02 



Grams. 



110.0 



14.0 



11.0 



11.7 



.7 



1.1 



9. 00 



'Connecticut Storrs. Bta. Rpt. 1899, p 104. 



