{"title":"[Nitrogen excretion of Helix aspersa Müller (Mollusca Gastropoda Pulmonata)].","authors":"M Charrier, J Daguzan","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>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.</p>","PeriodicalId":75504,"journal":{"name":"Annales de la nutrition et de l'alimentation","volume":"34 4","pages":"709-23"},"PeriodicalIF":0.0000,"publicationDate":"1980-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annales de la nutrition et de l'alimentation","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
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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