Effects of mealworm (Tenebrio molitor) larvae meal on growth, digestive and antioxidant parameters in Nile tilapia juvenile (Oreochromis niloticus)

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dc.contributor.authorDernekbasi, Seval
dc.contributor.authorKaradayi, Bahadir Tunahan
dc.date.accessioned2026-04-25T14:19:48Z
dc.date.available2026-04-25T14:19:48Z
dc.date.issued2025
dc.departmentSinop Üniversitesi
dc.description.abstractThis study investigated the effects of substituting Tenebrio molitor larvae meal (TM) for fishmeal at varying inclusion levels (0%-TM0, 50%-TM50, 75%-TM75 and 100%-TM100) on growth performance, digestive enzyme activities, and antioxidant responses in Nile tilapia (Oreochromis niloticus). Four different isonitrogenous and isolipidic experimental diets were formulated and fed to the fish for 12 weeks. The highest growth performance was observed in the TM75 group, while polynomial regression analysis indicated an optimal replacement level around 66%. TM inclusion significantly modulated the activities of digestive enzymes amylase, lipase, pepsin, and trypsin. Antioxidant enzymes including catalase (CAT), glutathione peroxidase (GPx), and superoxide dismutase (SOD) showed increased activity in TM-fed groups, particularly at moderate inclusion levels. However, elevated levels of lipid peroxidation (LPO) in the TM75 and TM100 groups indicated a threshold beyond which oxidative stress may arise despite enhanced antioxidant defense. These results suggest that TM meal can be a promising alternative protein source in tilapia diets when used at optimized inclusion levels, supporting both physiological performance and oxidative balance. The findings contribute to sustainable aquafeed strategies by identifying the biological and functional limits of insect meal use in freshwater fish.
dc.description.sponsorshipSinop University Scientific Research Projects Coordination Unit [SUF-1901-23-05]; Sinop University Scientific Research Projects
dc.description.sponsorshipThis article is a part of Bahad & imath;r Tunahan KARADAYI's master's thesis. In addition, this research was supported by Sinop University Scientific Research Projects Coordination Unit (Project no: SUF-1901-23-05, 2024). We thank Sinop University Scientific Research Projects for their financial support. We thank SURSAN Ltd. & Scedil;ti. for kindly pro-viding the raw materials used in the diet formulation.
dc.identifier.doi10.1007/s10695-025-01610-y
dc.identifier.issn0920-1742
dc.identifier.issn1573-5168
dc.identifier.issue6
dc.identifier.pmid41288833
dc.identifier.scopus2-s2.0-105022870322
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/s10695-025-01610-y
dc.identifier.urihttps://hdl.handle.net/11486/8195
dc.identifier.volume51
dc.identifier.wosWOS:001622596300001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofFish Physiology and Biochemistry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20260420
dc.subjectNile tilapia (Oreochromis niloticus)
dc.subjectTenebrio molitor
dc.subjectSustainable aquafeed
dc.subjectInsect meal
dc.subjectAlternative protein source
dc.subjectDigestive enzymes
dc.subjectAntioxidant activity
dc.titleEffects of mealworm (Tenebrio molitor) larvae meal on growth, digestive and antioxidant parameters in Nile tilapia juvenile (Oreochromis niloticus)
dc.typeArticle

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