Table 2.

Wet mass and standardized aminopeptidase-N activity in warm- (30°C) and cold- (10°C) acclimated mouse-opossum Thylamys elegans

Enzyme activity (UI mg-1 protein)Wet mass (g)
SectionColdWarmColdWarm
Duodenum0.250±0.0160.254±0.0200.89±0.1450.61±0.092
Jejunum A0.292±0.0170.287±0.0190.70±0.0970.54±0.061
Jejunum B0.335±0.0470.314±0.0430.56±0.0850.41±0.064
Ileum0.287±0.0280.270±0.0330.38±0.0680.34±0.070
  • Values are means ± S.E.M. (N=10 for cold- and 9 for warm-acclimated individuals).

    UI, μmol hydrolysed min-1. See text for details.