Fig. 1. Control experiments showing the effect of vehicle saline infusion (shaded
area, filled circles) on (A) glycerol concentration in plasma, (B) specific
activity (SA) and (C) rate of appearance (Ra glycerol) in
resting trout. Measurements were made by continuous infusion of
[3H]glycerol. No significant differences were found
(P>0.05). Values are means ± s.e.m. (N=4).