The effects of dietary organic or inorganic selenium in rainbow trout (Oncorhynchus mykiss) under crowding conditions

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dc.authoridsahin, nurhan/0000-0001-9487-1154
dc.authoridSahin, Kazim/0000-0001-9542-5244
dc.authoridTuzcu, Mehmet/0000-0002-1329-3143
dc.authorwosidSahin, Nurhan/D-5626-2009
dc.authorwosidsahin, nurhan/ABF-8007-2020
dc.authorwosidÇAKMAK, Mehmet Nuri/V-8348-2018
dc.authorwosidSahin, Kazim/D-5625-2009
dc.authorwosidkucukbay, fatumetuzzehra/X-5743-2019
dc.authorwosidKARACA ACARİ, Idil/GVU-4371-2022
dc.authorwosidTuzcu, Mehmet/H-2953-2018
dc.contributor.authorKucukbay, F. Z.
dc.contributor.authorYazlak, H.
dc.contributor.authorKaraca, I.
dc.contributor.authorSahin, N.
dc.contributor.authorTuzcu, M.
dc.contributor.authorCakmak, M. N.
dc.contributor.authorSahin, K.
dc.date.accessioned2024-08-04T20:31:17Z
dc.date.available2024-08-04T20:31:17Z
dc.date.issued2009
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIn the present study, the effects of different sources of selenium (Se; sodium selenite or selenomethionine) supplementation on the growth and serum concentrations of oxidative stress markers [malondialdehyde (MDA), 8-isoprostane, glutathione peroxidase (GSH-Px) activity] and muscle Se, MDA and heat shock protein 70 (Hsp70) levels in rainbow trouts were evaluated. The fish (n = 360; 0 + years old) with initial average weight of 20 +/- 0.8 g were randomly assigned to 12 treatment groups consisting of 3 replicates of 10 fish each in a 2 x 2 x 3 factorial arrangement of treatments (stocking densities, Se sources, Se levels). The fish were kept at low (25 kg m-3) or high (100 kg m-3) stocking densities and fed a basal (control) diet or the basal diet supplemented with either 0.15 or 0.30 mg of Se kg-1 of diet from two different forms: sodium selenite or selenomethionine. High stocking density decreased weight gain, feed intake and feed conversion ratio (FCR) when basal diet was fed (P = 0.001). A linear increase in feed intake and weight gain and improvement in FCR were found in sodium selenite (P = 0.01)- or selenomethionine (P = 0.001)-supplemented fish reared under crowding conditions. Serum and muscle Se levels and serum GSH-Px activity increased (P = 0.001) linearly, whereas serum and muscle MDA concentrations and serum 8-isoprostane decreased linearly as dietary sodium selenite (P = 0.01) or selenomethionine (P = 0.001) supplementation increased. Selenomethionine and sodium selenite supplementation decreased Hsp70 in the muscle of fish reared under crowding conditions (P < 0.05). Supplementation with Se improved growth and antioxidant status of fish and the effects of selenomethionine were relatively greater than sodium selenite in the crowded groups. Results suggest that crowding conditions cause significant detrimental effects in rainbow trout indicated by increased oxidative stress, reduced feed intake and body weight gain. It also indicates that dietary Se supplementation offers a feasible way of reducing the losses in performance of rainbow trout reared under crowding conditions. Selenomethionine seems to be more effective than sodium selenite and the higer dose in the present study also seems to be more effective than the lower dose.en_US
dc.description.sponsorshipInonu University [2006/33]en_US
dc.description.sponsorshipThe authors thank the financial support of the Unit of the Scientific Research Projects of Inonu University (grant no.: 2006/33), the Surgu Vocational School Division of Inonu University, Malatya-Turkey, for providing experimental facility, and Nutrition 21, NY, USA for providing Se.en_US
dc.identifier.doi10.1111/j.1365-2095.2008.00624.x
dc.identifier.endpage576en_US
dc.identifier.issn1353-5773
dc.identifier.issn1365-2095
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-69249245875en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage569en_US
dc.identifier.urihttps://doi.org/10.1111/j.1365-2095.2008.00624.x
dc.identifier.urihttps://hdl.handle.net/11616/94859
dc.identifier.volume15en_US
dc.identifier.wosWOS:000271494900003en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofAquaculture Nutritionen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectGSH-Pxen_US
dc.subjectHsp70en_US
dc.subjectMDAen_US
dc.subjectrainbow trouten_US
dc.subjectseleniumen_US
dc.subjectstocking densityen_US
dc.titleThe effects of dietary organic or inorganic selenium in rainbow trout (Oncorhynchus mykiss) under crowding conditionsen_US
dc.typeArticleen_US

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