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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
Duodenum 0.250±0.016 0.254±0.020 0.89±0.145 0.61±0.092 
Jejunum A 0.292±0.017 0.287±0.019 0.70±0.097 0.54±0.061 
Jejunum B 0.335±0.047 0.314±0.043 0.56±0.085 0.41±0.064 
Ileum 0.287±0.028 0.270±0.033 0.38±0.068 0.34±0.070 
Enzyme activity (UI mg-1 protein)Wet mass (g)
SectionColdWarmColdWarm
Duodenum 0.250±0.016 0.254±0.020 0.89±0.145 0.61±0.092 
Jejunum A 0.292±0.017 0.287±0.019 0.70±0.097 0.54±0.061 
Jejunum B 0.335±0.047 0.314±0.043 0.56±0.085 0.41±0.064 
Ileum 0.287±0.028 0.270±0.033 0.38±0.068 0.34±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.

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