R. Kirkwood et G. Robertson, THE ENERGY ASSIMILATION EFFICIENCY OF EMPEROR PENGUINS, APTENODYTES FORSTERI, FED A DIET OF ANTARCTIC KRILL, EUPHAUSIA-SUPERBA, Physiological zoology, 70(1), 1997, pp. 27-32
Captive emperor penguins in Antarctica hand-fed Antarctic krill assimi
lated an average of 70.5% +/- 1.7% (n = 3) of the energy in the diet.
Water intake estimated by tritiated water turnover was 9.4% +/- 2.4% l
ess than that measured gravimetrically. Tritium took 1.5 h from inject
ion to equilibrate with the penguins' body water pools.