Peanut meal as a sustainable protein source in rainbow trout diets: Effects on fillet quality and nutritional values

Seval Dernekbaşı; Dilara Kaya Öztürk; Keriman Yürüten Özdemir; İsmihan Karayücel

doi:10.3153/AR26022

EN

Peanut meal as a sustainable protein source in rainbow trout diets: Effects on fillet quality and nutritional values

Abstract

This study evaluated the effects of replacing soybean meal with peanut meal in rainbow trout diets on growth performance, biochemical composition, fatty acid profiles, nutritional quality indices, and fillet color. Fish were fed for 12 weeks with four experimental diets containing peanut meal at 0% (C; control), 50% (PNM50), 75% (PNM75), and 100% (PNM100) inclusion levels, along with a commercial feed (CF). All diets were formulated to be isonitrogenous, isolipidic, and isoenergetic. The C diet showed the best growth and specific growth rate, while the PNM50 diet resulted in the most favorable feed conversion ratio and survival. The commercial diet produced the lowest performance values. Protein content was highest in the C group, whereas lipid and ash contents were highest in CF and PNM100. Although PUFA levels were highest in CF, n-3PUFA, including EPA and DHA, were significantly higher in the experimental diets. Fillet lipid quality indices varied among treatments, with the highest FLQ and PI observed in the C group. Fillet color parameters were significantly improved in PNM100. Overall, peanut meal can partially or fully replace soybean meal in rainbow trout diets without compromising fillet quality, while enhancing fillet color and omega-3 content, contributing to more sustainable aquafeed formulations.

Keywords

Supporting Institution

This study was carried out in parallel with project no SUF-1901-21-010, 2022, supported by the Sinop University Scientific Research Coordination Unit.

Project Number

SUF-1901-21-01

Ethical Statement

This study was conducted in compliance with the rules for animal experiments for scientific purposes, and permission was given by the Sinop University Animal Experiments Local Ethics Committee with permission No. 2020/02 on February 17th, 2020.

Thanks

The authors thank SURSAN Ltd. Şti., Başpınar Fıstıkçılık Ltd. Şti., and Kuzey Su Ürünleri for providing raw materials and fish, and Ferhat Büyükdeveci for assistance in sourcing peanut meal.

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Details

Primary Language

English

Subjects

Fish Breeding

Journal Section

Research Article

Authors

Seval Dernekbaşı ^*
0000-0001-5735-2486
Türkiye

Dilara Kaya Öztürk
0000-0003-2505-231X
Türkiye

Keriman Yürüten Özdemir
0000-0002-5561-5702
Türkiye

İsmihan Karayücel
0000-0003-2520-7545
Türkiye

Early Pub Date

September 8, 2026

Publication Date

-

Submission Date

April 1, 2026

Acceptance Date

May 14, 2026

Published in Issue

Year 2026 Number: Advanced Online Publication

DOI

https://doi.org/10.3153/AR26022

IZ

https://izlik.org/JA54AP82UC

Cite

RIS / Bibtex

APA

Dernekbaşı, S., Kaya Öztürk, D., Yürüten Özdemir, K., & Karayücel, İ. (2026). Peanut meal as a sustainable protein source in rainbow trout diets: Effects on fillet quality and nutritional values. Aquatic Research, Advanced Online Publication, 277-290. https://doi.org/10.3153/AR26022

AMA

1.Dernekbaşı S, Kaya Öztürk D, Yürüten Özdemir K, Karayücel İ. Peanut meal as a sustainable protein source in rainbow trout diets: Effects on fillet quality and nutritional values. Aquat Res. 2026;(Advanced Online Publication):277-290. doi:10.3153/AR26022

Chicago

Dernekbaşı, Seval, Dilara Kaya Öztürk, Keriman Yürüten Özdemir, and İsmihan Karayücel. 2026. “Peanut Meal As a Sustainable Protein Source in Rainbow Trout Diets: Effects on Fillet Quality and Nutritional Values”. Aquatic Research, no. Advanced Online Publication: 277-90. https://doi.org/10.3153/AR26022.

EndNote

Dernekbaşı S, Kaya Öztürk D, Yürüten Özdemir K, Karayücel İ (September 1, 2026) Peanut meal as a sustainable protein source in rainbow trout diets: Effects on fillet quality and nutritional values. Aquatic Research Advanced Online Publication 277–290.

IEEE

[1]S. Dernekbaşı, D. Kaya Öztürk, K. Yürüten Özdemir, and İ. Karayücel, “Peanut meal as a sustainable protein source in rainbow trout diets: Effects on fillet quality and nutritional values”, Aquat Res, no. Advanced Online Publication, pp. 277–290, Sept. 2026, doi: 10.3153/AR26022.

ISNAD

Dernekbaşı, Seval - Kaya Öztürk, Dilara - Yürüten Özdemir, Keriman - Karayücel, İsmihan. “Peanut Meal As a Sustainable Protein Source in Rainbow Trout Diets: Effects on Fillet Quality and Nutritional Values”. Aquatic Research. Advanced Online Publication (September 1, 2026): 277-290. https://doi.org/10.3153/AR26022.

JAMA

1.Dernekbaşı S, Kaya Öztürk D, Yürüten Özdemir K, Karayücel İ. Peanut meal as a sustainable protein source in rainbow trout diets: Effects on fillet quality and nutritional values. Aquat Res. 2026;:277–290.

MLA

Dernekbaşı, Seval, et al. “Peanut Meal As a Sustainable Protein Source in Rainbow Trout Diets: Effects on Fillet Quality and Nutritional Values”. Aquatic Research, no. Advanced Online Publication, Sept. 2026, pp. 277-90, doi:10.3153/AR26022.

Vancouver

1.Seval Dernekbaşı, Dilara Kaya Öztürk, Keriman Yürüten Özdemir, İsmihan Karayücel. Peanut meal as a sustainable protein source in rainbow trout diets: Effects on fillet quality and nutritional values. Aquat Res. 2026 Sep. 1;(Advanced Online Publication):277-90. doi:10.3153/AR26022