Early Weaning of Sea Bass (D. labrax) Larvae: Effects on Growth Performance and Digestive Enzyme Activities

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dc.contributor.authorSuzer, Cuneyt
dc.contributor.authorKamaci, H. Okan
dc.contributor.authorCoban, Deniz
dc.contributor.authorSaka, Sahin
dc.contributor.authorFirat, Kursat
dc.contributor.authorKaracaoglan, Arif
dc.date.accessioned2019-10-27T21:36:19Z
dc.date.available2019-10-27T21:36:19Z
dc.date.issued2011
dc.departmentEge Üniversitesien_US
dc.description.abstractIn this study, effects of early weaning of sea bass (D. labrax) by microparticulate food on larval development and digestive enzyme activities, acid protease and alkaline protease were investigated until day 40. Larval rearing was conducted in closed sea water systems. Experiments were triplicated on 3 different weaning protocol that introduced on day 15 (MD 15), day 20 (MD20) and day 25 (MD25) and also no microparticulate diet (MD) distributed in the control group. At the end of the experiment at 40-day, larval growth was calculated and the best values were obtained from MD25. Statistical differences among groups were not important (P>0.05) whereas MD15 was found different than the other groups (P<0.05). Also, survival rates were calculated as 3.6%, 14.7%, 43.6%, and 34.1% for the experimental groups, respectively. MD15 and MD20 groups were found different than the other groups (P<0.05). Nevertheless, activity of alkaline protease was detected synchronously by mouth opening and exogenous feeding and also increased by larval development. According to histological analysis, pancreas was observed by mouth opening and similarly developed with increasing of larval age. Alkaline protease activity changed by nutritional composition of feed and especially shifting of feed affected the enzymatic activity. There was no differences among the experimental groups (P>0.05) while control group was found statistically different (P<0.05). According to histological analysis, gastric glands and formation of functional stomach were observed on day 24-25 in all experimental groups. Acid protease activity firstly detected at 25 DAH. Control group was found different than the other groups (P<0.05). Finally, in terms of both growth parameters and survival rate and digestive enzyme activities it is clearly concluded that MD supplementation could be started after 25 DAH in D. lahrax larviculture.en_US
dc.identifier.doi10.4194/1303-2712-v11_3_22
dc.identifier.endpage497en_US
dc.identifier.issn1303-2712
dc.identifier.issue3en_US
dc.identifier.startpage491en_US
dc.identifier.urihttps://doi.org/10.4194/1303-2712-v11_3_22
dc.identifier.urihttps://hdl.handle.net/11454/46035
dc.identifier.volume11en_US
dc.identifier.wosWOS:000298836100021en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.publisherCentral Fisheries Research Insten_US
dc.relation.ispartofTurkish Journal of Fisheries and Aquatic Sciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectSea bassen_US
dc.subjectmicroparticulate feeden_US
dc.subjectlarval developmenten_US
dc.subjectearly weaningen_US
dc.subjectdigestive enzymesen_US
dc.titleEarly Weaning of Sea Bass (D. labrax) Larvae: Effects on Growth Performance and Digestive Enzyme Activitiesen_US
dc.typeArticleen_US

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