Influence of Physical Activity and Nutritional Limitation on Amino Acid, Fatty Acid Metabolism, and Biochemical Responses in Juvenile Rainbow Trout (Oncorhynchus mykiss, Walbaum, 1792)

dc.authorid0000-0001-5437-3513
dc.authorid0000-0003-1708-7272
dc.authorid0000-0002-9999-6658
dc.authorid0000-0001-8780-480X
dc.authorid0000-0002-0700-5096
dc.contributor.authorTuncelli, Gokhan
dc.contributor.authorErtik, Onur
dc.contributor.authorTuncelli, Idil Can
dc.contributor.authorBayrak, Bertan Boran
dc.contributor.authorOzden, Ozkan
dc.contributor.authorYanardag, Refiye
dc.contributor.authorMemis, Devrim
dc.date.accessioned2026-02-08T15:15:43Z
dc.date.available2026-02-08T15:15:43Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractThis study investigates the synergistic effects of swimming activity and dietary restriction on the metabolic and nutritional characteristics of muscle tissue in juvenile rainbow trout (Oncorhynchus mykiss, Walbaum, 1792). During a 6-week study, four groups of juvenile rainbow trout, each starting with an average weight of 26.54 +/- 0.36 g, were analyzed: the first group was allowed to feed freely in static water (SW group), the second experienced a dietary limitation (25% feed restriction) (LF group), the third was required to swim at a speed of one body length per second (SE group), and the fourth group faced a combination of dietary restriction (25% feed restriction) and enforced swimming activity (SELF group). Swimming activity was implemented using a water flow rate of one body length per second (1 BL s-1), ensuring a standardized exercise intensity. Comprehensive analysis revealed significant alterations in biochemical parameters, amino acid composition, and fatty acid profiles in rainbow trout muscle tissue. The results indicate a decrease in histidine levels (p < 0.05) with the combined effect of both swimming and feeding restrictions. Additionally, cysteine and semi-essential amino acids (EAAs) showed a decrease (p < 0.05) solely due to the influence of swimming. As for fatty acid outcomes, linolenic acid exhibited a reduction with the combined impact of both swimming and feeding restrictions (p < 0.05), while margaric acid significantly decreased (p < 0.05) only with the influence of swimming. Crucial shifts in antioxidant defense mechanisms, including glutathione (GSH) and lipid peroxidation (LPO) levels, were identified, highlighting the roles of catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPx) as biochemical parameters. Detailed examination further clarified modifications in glucose-6-phosphate dehydrogenase (G6PD) activities, reactive oxygen species (ROS) levels, and lactate dehydrogenase (LDH) activity, serving as pivotal indicators of oxidative stress and tissue damage. These findings contribute to a holistic understanding of nutritional dynamics within rainbow trout muscle tissue, offering insights crucial for optimizing fish health and productivity in aquaculture.
dc.description.sponsorshipScientific Research Projects Coordination Unit of Istanbul University [FDK-2020-37081, FBA-2022-38230]
dc.description.sponsorshipThis work was supported by the Scientific Research Projects Coordination Unit of Istanbul University with Project numbers FDK-2020-37081 and FBA-2022-38230.
dc.identifier.doi10.1155/are/7061643
dc.identifier.issn1355-557X
dc.identifier.issn1365-2109
dc.identifier.issue1
dc.identifier.scopus2-s2.0-105000953166
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1155/are/7061643
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5934
dc.identifier.volume2025
dc.identifier.wosWOS:001439354500001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofAquaculture Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzWOS_KA_20260207
dc.subjectbiochemical changes
dc.subjectdietary restriction
dc.subjectjuvenile rainbow trout
dc.subjectnutritional composition
dc.subjectphysiological responses
dc.subjectswimming activity
dc.titleInfluence of Physical Activity and Nutritional Limitation on Amino Acid, Fatty Acid Metabolism, and Biochemical Responses in Juvenile Rainbow Trout (Oncorhynchus mykiss, Walbaum, 1792)
dc.typeArticle

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