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The activities of digestive enzymes in the gut regions of African giant land snail, Archachatina marginata were investigated during aestivation induced in the laboratory by the withdrawal of water and food for three weeks. All studied enzymes, amylase, a-glucosidase, cellulase, lipase, and protease, were detected on the gut regions (oesophagus, crop, stomach and intestine). Aestivated snails had significantly lower enzyme activities in all the gut regions than the active snails. Furthermore the stomach recorded the highest enzyme activities of all the gut regions.

Digestive enzymes in African Giant land snail (Archachatina marginata) during aestivation