
DIGESTIBILITY OF FISH AND POULTRY. ecw) 
TABLE 17. 
Results of digestion experiments with duck, Nos. 610-613. 
Diet:—Duck, Bread, Milk, Duck-fat, Sugar, and Rock-candy. 



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Experiment No. 610, with R. D. M. Gms. | Gms. | Gms. | Gms. |Gms.| Cal. 
Food eaten: | 



















3757| Duck, - - - - ee 705 431215. 01220 51) p10 E400) tate 
3758| Bread, - - oe - BE SOO Ole? 3203 22014235,2 nn Ome son 
3759| Milk, - - - - Pe} SOOrOm. 24.0). 32.459) | On2) 8098 
3760| Duck-fat, - - : <ul 400 -Ave——-1259°0) <== |= | 2156 
Sucar,) o'- - - - Sal OO ah ST Sor 7 he 747 
Total, - - - - yee gts. 15 50me 660.8) 28.1) 9377 
3762|Feces from total food, - ~ 50.7] Bie Tie VSO ALS Ah. OU eSOb 
Feces from food other than duck 
and duck-fat, - - - — eS) MIE he one 109 
Feces from duck and duck-fatalone,|; — | 12.2| 12.6) — | — 197 
Amount digested from total food, — |291.0/534.9]/656.3| 23.2) 9071 
Amount digested from duck and 
duck-tat alone, |= - - — |203.71473.4| — =" 11 5991 
Energy of urine from total food, — oat ae ee sae == 369 
Energy of urine from duck alone, — areas AS wl ae See 
Coefficients of availability: 7 & z | me me 
Of total food, - - | — |93.06|97.13/99.32/82. 56/92. 80 
Of duck and duck- fat aon — |94.35/97.41) — | — |91.82 
Experiment No. 611, with H.C.M. | Gms. | Gms.}Gms.|Gms.| Gms. | Cal. 
Food eaten: 























Bosgteswuck; = - - - - =ih689.8i241.61253 0) ——- | 10,6/73770 
3758 Bread, - - = - =a) 71725), 65-5) 20,21570.0) 40,3); 2210 
3760 Duck-fat, - - - SATO Ay a= 1200721 — | 2202 
Sugar, - - - - “a LL On 3) a ae WELO eS 472 
Total, - - - - - — |307.1/548.4|498.9| 22.9} 8663 
3761|Feces from total food,-~° - - 49.6 SAEZ AN ete eG O)) 255 
Feces from food other than duck 
and duck-fat, - - - — TOA aL es in ey ech ee 94 
’|Feces from duck and duck-fat alone, 15 Aha Oe iira th ere 1gI 
Amount digested from total food, — /|283.8/537.0/491.5| 19.3] 8378 
Amount digested from duck and ; 
duck-fat alone, - - - — |226.2/509.3| — — | 5790 
Energy of urine from total food, — a ee en 408 
Energy of urine from duck alone, = —— i a 283 
Coefficients of availability: Tor) Ve) 5 Torii a: Torn ee 
Of total food, - - — |92.41/97.92:98.52/84.28/92.00 
Of duck and duck- fat alone: — |93.63|98.09] — | — |92.07 
10 
