Changes in the digestive enzymes and hormones of gilthead seabream larvae (Sparus aurata, L. 1758) fed on Artemia nauplii enriched with free lysine

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dc.authoridTurkmen, Mustafa/0000-0001-6700-5947
dc.contributor.authorNaz, Mehmet
dc.contributor.authorTurkmen, Mustafa
dc.date.accessioned2024-09-18T20:57:11Z
dc.date.available2024-09-18T20:57:11Z
dc.date.issued2009
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractVariations in digestive enzymes and hormones during the larval development of gilthead seabream (Sparus aurata) fed on live prey (Artemia nauplii) enriched with free lysine were investigated for 16 days (from day 24 to day 40). Prior to initiation of the experiment, newly hatched larvae were transferred from incubators to fiber glass tanks (300 l) with black walls and fed the same diet until day 24. Each experiment was performed in triplicate. The amount of free lysine in the Artemia nauplii was increased by adding a 5.3 mM free amino acid solution to the culture water during a 16-h enrichment period. Larvae were sampled four times at four-day intervals, for 16 days. Larvae fed on the control group had lower growth than those fed on the lysine group at the end of the study but the difference was not significant (P > 0.05). The highest trypsin activity and lap/leu-ala peptidase ratios were observed in the control group (P < 0.05). Significant differences between bombesin activities of the treatment groups were not found in the fifth minute after the start of feeding (P > 0.05) but were significant in the fifteenth minute (P < 0.05). Significant differences between the CCK levels of the treatment groups were found (P < 0.05). In conclusion, three main ideas are presented in this study. First, Artemia nauplii can successfully be enriched with free lysine. Second, bombesin (GRP) and cholecystokinin (CCK) activity can be stimulated by free lysine. Third, the mechanisms controlling adaptation of the activity of the trypsin to the amount of dietary protein were not activated until day 40.en_US
dc.identifier.doi10.1007/s10499-008-9221-7
dc.identifier.endpage535en_US
dc.identifier.issn0967-6120
dc.identifier.issn1573-143X
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-71149097638en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage523en_US
dc.identifier.urihttps://doi.org/10.1007/s10499-008-9221-7
dc.identifier.urihttps://hdl.handle.net/20.500.12483/12327
dc.identifier.volume17en_US
dc.identifier.wosWOS:000272017500002en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofAquaculture Internationalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSparus aurataen_US
dc.subjectBombesinen_US
dc.subjectCholecystokininen_US
dc.subjectDigestive enzymesen_US
dc.subjectAlkaline phosphataseen_US
dc.subjectTrypsinen_US
dc.subjectAmylaseen_US
dc.subjectAminopeptidase Nen_US
dc.subjectLeucine alanine peptidaseen_US
dc.titleChanges in the digestive enzymes and hormones of gilthead seabream larvae (Sparus aurata, L. 1758) fed on Artemia nauplii enriched with free lysineen_US
dc.typeArticleen_US

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