Effect of diets containing laurel seed oil on growth and fatty acid composition of rainbow trout, Oncorhynchus mykiss

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dc.authoridDernekbasi, Seval/0000-0001-5735-2486
dc.authoridKarayucel, Ismihan/0000-0003-2520-7545
dc.contributor.authorDernekbasi, S.
dc.contributor.authorKarayucel, I.
dc.contributor.authorAkyuz, A. P.
dc.date.accessioned2025-03-23T19:32:03Z
dc.date.available2025-03-23T19:32:03Z
dc.date.issued2017
dc.departmentSinop Üniversitesi
dc.description.abstractThe aim of this study was to determine the effects of replacing fish oil (FO) with laurel seed oil (LSO), as an alternative plant lipid source in diets on the growth and fatty acid composition of rainbow trout (Oncorhynchus mykiss; 111.47 +/- 0.2 g mean individual weight). At the end of the feeding trial, survival was 100% in all treatments. No significant differences were seen in growth between the dietary groups (P > 0.05). The protein, lipid and ash contents were not significantly different among the groups (P > 0.05); however, there was a significant difference in protein and ash content between the treatment groups and the initial, and between the 50LSO group and the initial group, respectively (P < 0.05). The viscerosomatic index (VSI) and hepatosomatic index (HSI) values were not affected by increasing LSO percentages in the diets. The n-6 polyunsaturated fatty acid (PUFA) concentration increased with increasing LSO levels in the diets. In contrast, the n-3 PUFA levels decreased with increasing LSO levels in the diets. The liver and muscle were used for the analysis of fatty acids. The highest level of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) concentrations was recorded in fillet of fish fed the FO diet and the lowest in those fed the 50LSO diet. However, EPA and DHA ratios in the liver of fish fed the 75LSO diet were higher than those in fillet of fish fed the FO and 50LSO diets. No significant differences were seen in fatty acid composition between the dietary groups (P > 0.05). Based on the results of growth performance and fatty acid composition of the experimental fish in this study, it can be concluded that the 75% concentration of laurel seed oil performed best among the diets tested in the experiment.
dc.identifier.doi10.1111/anu.12382
dc.identifier.endpage227
dc.identifier.issn1353-5773
dc.identifier.issn1365-2095
dc.identifier.issue2
dc.identifier.scopusqualityQ1
dc.identifier.startpage219
dc.identifier.urihttps://doi.org/10.1111/anu.12382
dc.identifier.urihttps://hdl.handle.net/11486/5401
dc.identifier.volume23
dc.identifier.wosWOS:000395492100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofAquaculture Nutrition
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250323
dc.subjectfatty acids
dc.subjectlaurel seed oil
dc.subjectnutrition
dc.subjectOncorhynchus mykiss
dc.subjectrainbow trout
dc.titleEffect of diets containing laurel seed oil on growth and fatty acid composition of rainbow trout, Oncorhynchus mykiss
dc.typeArticle

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