Effects of Mineral Proteinate Mixture Inclusion Levels on Oncorhynchus mykiss Fry: Growth, Digestion, and Antioxidant Status

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dc.contributor.authorŞahin, Tolga
dc.contributor.authorErtürk Gürkan, Selin
dc.contributor.authorGürkan, Mert
dc.contributor.authorErgün, Sebahattin
dc.date.accessioned2026-02-03T11:53:34Z
dc.date.available2026-02-03T11:53:34Z
dc.date.issued2026
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractTo improve growth, digestion, antioxidant status, and feed efficiency, this study sought to identify the ideal inclusion level of an organic mineral mixture (OMM®; proteinates of Zn, Cu, Mn, Fe, Co, Se) to partially replace inorganic mineral premixes in rainbow trout (Oncorhynchus mykiss) fry diet. Four isoproteic diets (0% control, 0.5% OMM-50, 0.75% OMM-75, 1.0% OMM-100) were subjected to triplicate testing using over 60 days. Final weight (13.55±0.03 g), SGR (3.99±0.02%/day), and trypsin activity (2.46±0.10 U/mg protein), were maximum in the OMM-50 group and lowest FCR (1.02±0.01). Both moderate OMM (0.5–0.75%) increased the SOD (8.79±1.9, 7.67±1.3 U/mg protein) and GPx (0.32±0.11, 0.17±0.06 U/mg protein) activities, decreasing MDA (1.60±0.87, 2.83±0.76 nmol/mg protein), suggesting enhanced antioxidant defense. Conversely, OMM-100 reduced growth (11.19±0.06 g), SGR (3.49±0.18%/day), and survival (84.29±0.82%), but increased feed intake (3.37±0.03%/day), indicating mineral imbalance. The peak of whole-body mineral contents was observed at OMM-50, validating higher bioavailability. Thus, 0.5% OMM replacement optimizes physiological outcomes and offers a sustainable alternative to inorganic minerals in aquafeeds. © 2026, Central Fisheries Research Institute. All rights reserved.
dc.identifier.doi10.4194/TRJFAS28962
dc.identifier.issn1303-2712
dc.identifier.issue6
dc.identifier.scopus2-s2.0-105026370399
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.4194/TRJFAS28962
dc.identifier.urihttps://hdl.handle.net/20.500.12428/34241
dc.identifier.volume26
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherCentral Fisheries Research Institute
dc.relation.ispartofTurkish Journal of Fisheries and Aquatic Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_Scopus_20260130
dc.subjectAntioxidant enzymes
dc.subjectChelated trace minerals
dc.subjectDigestive performance
dc.subjectOncorhynchus mykiss
dc.subjectOrganic minerals
dc.titleEffects of Mineral Proteinate Mixture Inclusion Levels on Oncorhynchus mykiss Fry: Growth, Digestion, and Antioxidant Status
dc.typeArticle

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