Functional changes in digestive enzyme activities of meagre (Argyrosomus regius; Asso, 1801) during early ontogeny

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dc.contributor.authorSuzer, Cuneyt
dc.contributor.authorKamaci, H. Okan
dc.contributor.authorCoban, Deniz
dc.contributor.authorYildirim, Sukru
dc.contributor.authorFirat, Kursat
dc.contributor.authorSaka, Sahin
dc.date.accessioned2019-10-27T21:51:50Z
dc.date.available2019-10-27T21:51:50Z
dc.date.issued2013
dc.departmentEge Üniversitesien_US
dc.description.abstractThe ontogenesis of main pancreatic and intestinal enzymes was investigated in the recent promising Mediterranean candidate species of meagre, Argyrosomus regius, during larval development until 40 days after hatching (DAH). The green-water technique was carried out for larval rearing. Whole-body homogenates were used for enzymatic analysis in larvae younger than 15 DAH; after this date, older larvae were dissected into two segments as pancreatic and intestinal segment. Trypsin was detected as early as hatching and sharply increased concurrently with age and exogenous feeding 15 DAH, but constant decline was observed until the end of experiment. Amylase was determined at 2 DAH and sharply increased 10 DAH. Then, slight decreases were found between 10 and 15 DAH, and then slow alterations were continued until the end of the experiment. Lipase was firstly measured on day 3; then, sudden decline was observed between 20 and 25 DAH. After this date, slow fluctuations were maintained until the end of the experiment. Pepsin was firstly assayed 15 DAH related to gastric gland secretion and sharply increased 30 DAH. Then, it slowly varied until end of the experiment. Enzymes of brush border membranes, alkaline phosphatase and aminopeptidase N showed similar pattern on specific activities during the first 10 days. Thereafter, while specific activity of alkaline phosphatase slightly decreased 15 and fluctuated until 20 DAH, aminopeptidase N activity slowly increased 20 DAH. Then, activity of alkaline phosphatase and aminopeptidase N constantly increased 30 DAH, indicating maturation of the intestinal digestive process, and also, these activities continued to slowly increase until the end of the experiment. The specific activity of cytosolic peptidase, leucine-alanine peptidase, smoothly increased on day 8, then fluctuated until 15 DAH. After this date, in contrast to enzymes of brush border membranes, it sharply decreased 25 DAH and continued to gradually decline until the end of the experiment. These converse expressions were indicative of a maturation of enterocytes and the transition of an adult mode of digestion.en_US
dc.identifier.doi10.1007/s10695-012-9755-5en_US
dc.identifier.endpage977en_US
dc.identifier.issn0920-1742
dc.identifier.issue4en_US
dc.identifier.pmid23224833en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage967en_US
dc.identifier.urihttps://doi.org/10.1007/s10695-012-9755-5
dc.identifier.urihttps://hdl.handle.net/11454/47313
dc.identifier.volume39en_US
dc.identifier.wosWOS:000321437800020en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofFish Physiology and Biochemistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDigestive enzymesen_US
dc.subjectOntogenyen_US
dc.subjectLarvaeen_US
dc.subjectArgyrosomus regiusen_US
dc.subjectMeagreen_US
dc.titleFunctional changes in digestive enzyme activities of meagre (Argyrosomus regius; Asso, 1801) during early ontogenyen_US
dc.typeArticleen_US

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