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  • Title: [Nitrogen excretion of Helix aspersa Müller (Mollusca Gastropoda Pulmonata)].
    Author: Charrier M, Daguzan J.
    Journal: Ann Nutr Aliment; 1980; 34(4):709-23. PubMed ID: 7224493.
    Abstract:
    Helix aspersa, studied in Brittany, has not a complete uricolytic enzymatic chain. Allantoïnase and allantoïcase are absent, but, in vitro, uricase and urease are very active. A part from uric acid, Helix aspersa shows a high rate of urea and ammonia. The level of these substances is dependant on the age of the snail and on its physiological state.
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