Digestive enzyme activities in larvae of sharpsnout seabream (Diplodus puntazzo)

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dc.contributor.authorSuzer, Cueneyt
dc.contributor.authorAktulun, Sevim
dc.contributor.authorCoban, Deniz
dc.contributor.authorKamaci, H. Okan
dc.contributor.authorSaka, Sahin
dc.contributor.authorFirat, Kuersat
dc.contributor.authorAlpbaZ, Atilla
dc.date.accessioned2019-10-27T20:00:53Z
dc.date.available2019-10-27T20:00:53Z
dc.date.issued2007
dc.departmentEge Üniversitesien_US
dc.description.abstractThe ontogenesis and specific activities of pancreatic and intestinal enzymes were investigated in sharpsnout sea bream, Diplodus puntazzo, during larval development until the end of weaning on day 50. The green-water technique was carried out for larval rearing in triplicate. Trypsin was first detected as early as hatching and sharply increased related to age and exogenous feeding until day 25, but a sharp decrease was observed towards the end of the experiment. Amylase was determined 2 days after hatching (DAH) and sharply increased to 10 DAH. Afterwards, slight decreases were found between 10 and 20 DAH and then slow alterations were continued until end of the experiment. Lipase was measured for the first time on day 4, and then slight increase was found to 25 DAH. After this date, slow variations were maintained until end of the experiment. Pepsin was firstly assayed 32 DAH related with stomach formation and sharply increased to 40 DAH. Then it was fluctuated 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 to 15 DAH and fluctuated until 20 DAH, aminopeptidase N activity slowly declined to 20 DAH. Afterwards, activity of alkaline phosphatase and aminopeptidase N were sharply increased to 30 DAH, showing maturation of the intestinal digestive process and also these activities continued to slight increase until end of the experiment. The specific activity of cytosolic peptidase, leucine-alanine peptidase sharply increased to on day 8, then suddenly declined to 12 DAH and further decreased until 20 DAH. After this date, in contrast to enzymes of brush border membranes, it sharply decreased to 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 to an adult mode of digestion. (C) 2007 Elsevier Inc. All tights reserved.en_US
dc.identifier.doi10.1016/j.cbpa.2007.06.418en_US
dc.identifier.endpage477en_US
dc.identifier.issn1095-6433
dc.identifier.issn1531-4332
dc.identifier.issue2en_US
dc.identifier.pmid17651999en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage470en_US
dc.identifier.urihttps://doi.org/10.1016/j.cbpa.2007.06.418
dc.identifier.urihttps://hdl.handle.net/11454/41227
dc.identifier.volume148en_US
dc.identifier.wosWOS:000249231400028en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevier Science Incen_US
dc.relation.ispartofComparative Biochemistry and Physiology A-Molecular & Integrative Physiologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDiplodus puntazzoen_US
dc.subjectpancreatic enzymesen_US
dc.subjectintestinal enzymesen_US
dc.subjectlarval developmenten_US
dc.subjectontogeryen_US
dc.subjectsharpsnout sea breamen_US
dc.titleDigestive enzyme activities in larvae of sharpsnout seabream (Diplodus puntazzo)en_US
dc.typeArticleen_US

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