Effects of Ulva lactuca as a dietary supplement on growth, antioxidants and digestive enzymes of Nile tilapia (Oreochromis niloticus) under intermittent fasting and regular feeding regimes in the recirculating system

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dc.contributor.authorDernekbasi, Seval
dc.contributor.authorKaratas, Emin
dc.contributor.authorOzdemir, Keriman Yuruten
dc.contributor.authorOzturk, Dilara Kaya
dc.contributor.authorKarayucel, Ismihan
dc.date.accessioned2026-04-25T14:19:48Z
dc.date.available2026-04-25T14:19:48Z
dc.date.issued2025
dc.departmentSinop Üniversitesi
dc.description.abstractThis study evaluated the effects of dietary supplementation with Ulva lactuca (5% = ULM5; 10% = ULM10) on Nile tilapia (Oreochromis niloticus) under prolonged intermittent fasting (1 week fasting/1 week feeding for 12 weeks). While fasting reduced growth and body composition parameters, protein content remained above 20% across all groups. ULM5 improved growth performance under normal feeding, whereas ULM10 enhanced antioxidant defense [up arrow SOD (superoxide dismutase), up arrow CAT (catalase), down arrow LPO (lipid peroxidation)], particularly during stress. Digestive enzyme activities declined during fasting but recovered in U. lactuca-fed groups. These findings suggest that U. lactuca, especially at 10%, may support physiological resilience and oxidative balance during nutritional stress, highlighting its potential as a functional feed additive in sustainable aquaculture.
dc.identifier.doi10.1007/s10811-025-03659-x
dc.identifier.endpage4718
dc.identifier.issn0921-8971
dc.identifier.issn1573-5176
dc.identifier.issue6
dc.identifier.orcid0000-0001-5735-2486
dc.identifier.orcid0000-0003-2505-231X
dc.identifier.orcid0000-0002-7483-6543
dc.identifier.scopusqualityQ1
dc.identifier.startpage4705
dc.identifier.urihttps://doi.org/10.1007/s10811-025-03659-x
dc.identifier.urihttps://hdl.handle.net/11486/8198
dc.identifier.volume37
dc.identifier.wosWOS:001581941700001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Applied Phycology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260420
dc.subjectUlva lactuca
dc.subjectOreochromis niloticus
dc.subjectEnzyme
dc.subjectAntioxidants
dc.subjectFeeding regime
dc.titleEffects of Ulva lactuca as a dietary supplement on growth, antioxidants and digestive enzymes of Nile tilapia (Oreochromis niloticus) under intermittent fasting and regular feeding regimes in the recirculating system
dc.typeArticle

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