Comparison of growth performance, biochemical and fatty acid compositions between all-female diploid and triploid rainbow trout Oncorhynchus mykiss (Walbaum, 1792)

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dc.authoridDernekbasi, Seval/0000-0001-5735-2486
dc.authoridKarayucel, Ismihan/0000-0003-2520-7545
dc.contributor.authorKarayucel, I.
dc.contributor.authorAkyuz, A. Parlak
dc.contributor.authorDernekbasi, S.
dc.date.accessioned2025-03-23T19:31:50Z
dc.date.available2025-03-23T19:31:50Z
dc.date.issued2018
dc.departmentSinop Üniversitesi
dc.description.abstractThis study compares the performance (in terms of survival and growth), biochemical and fatty acid compositions among all female diploid (AFD) and triploid (AFT) rainbow trout (Oncorhynchus mykiss). AFD and AFT fish with mean initial weights of 1,040.1 +/- 1.3 and 1,039.7 +/- 1.6 g, respectively, were reared and fed from March to August with a commercially extruded trout feed in a commercial freshwater fishfarm located in the Black Sea region (Samsun, Turkey). Survival was reduced throughout the experimental period in the AFT group with increasing water temperatures. At the end of the experiment, survival rates were 98.57 +/- 1.43% and 82.38 +/- 7.39% for the AFD and AFT groups, respectively. The AFD group showed significantly better growth performances in terms of weight gain, feed conversion rate (FCR), relative growth rate (RGR) and specific growth rate (SGR) than the AFT group (p < .05). Significantly less protein and greater fat content were also observed in the AFT group (p < .05). There was no significant difference between groups for fatty acid composition in meat, except for stearic acid (SA, C18:0) and docosahexaenoic acid (DHA, 22:6 n-3). While the greatest SA concentration was in the AFT group, the greatest DHA concentration was observed in the AFD group (p < .05). The results indicate that female triploid rainbow trout are more susceptible to suboptimal environmental conditions (especially to higher water temperatures) than female diploids. Although poor triploid performance was observed in this study, relative productivity might be enhanced by rearing triploids in optimal environmental conditions.
dc.identifier.doi10.1111/jai.13579
dc.identifier.endpage148
dc.identifier.issn0175-8659
dc.identifier.issn1439-0426
dc.identifier.issue1
dc.identifier.scopusqualityQ3
dc.identifier.startpage142
dc.identifier.urihttps://doi.org/10.1111/jai.13579
dc.identifier.urihttps://hdl.handle.net/11486/5372
dc.identifier.volume34
dc.identifier.wosWOS:000419927100020
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofJournal of Applied Ichthyology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250323
dc.subjectOreochromis-Niloticus L
dc.subjectSalmo-Salar L.
dc.subjectFresh-Water
dc.subjectAtlantic Salmon
dc.subjectBrown Trout
dc.subjectChemical-Composition
dc.subjectSexual-Maturation
dc.subjectCoho Salmon
dc.subjectSurvival
dc.subjectFish
dc.titleComparison of growth performance, biochemical and fatty acid compositions between all-female diploid and triploid rainbow trout Oncorhynchus mykiss (Walbaum, 1792)
dc.typeArticle

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