Fig. 2. Plots of (A–C) mean apparent rates of absorption (fraction of the oral dose absorbed per minute) of D-[³H]glucose, [¹⁴C]3-OMG and L-[³H]glucose, and (D–F) the mean ratio of L-glucose to D-glucose or 3-OMG cumulative fractional absorption (fraction of the amount of the oral dose ultimately absorbed by each time point). In (A,D) rainbow lorikeets and (B,C,E,F) red wattlebirds N=8 for all time points for both species. Measurements were made under conditions saturating for mediated glucose transporters in both species. Filled circles in A–C, L-[³H]glucose; unfilled circles, D-[¹⁴C]glucose; unfilled inverted triangles, [¹⁴C]3-OMG. Asterisks in B and C indicate a significant difference in apparent absorption rate of the two probes when data for individual birds were compared for each sampling time point separately (RM-ANOVA, P<0.05). Note different y-axis scales for A–C.