Evaluation of the efficacy of 17α-methyltestosterone incorporated into feed on the rate of masculinization in Oreochromis niloticus fry in the Upper Sassandra region (Ivory Coast)

N’dri Florentine ASSAN; Awa TRORE; Marie Jeanne Adelaide épouse Yao OHOU; Taubo Don César DAN; Noel GROGA

doi:10.30574/wjarr.2026.30.2.1180

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Evaluation of the efficacy of 17α-methyltestosterone incorporated into feed on the rate of masculinization in Oreochromis niloticus fry in the Upper Sassandra region (Ivory Coast)

N’dri Florentine ASSAN ^{1, 2, *}, Awa TRORE ^{1, 2}, Marie Jeanne Adelaide épouse Yao OHOU ^{1, 2}, Taubo Don César DAN ¹ and Noel GROGA ¹

¹ Laboratory for Agricultural Production Improvement (LAPA), Department of groforestry, Jean Lorougnon Guédé University, P.O. Box 150, Daloa (Ivory Coast).
² Laboratory of Biodiversity and Tropical Ecology, Department of Environmental Sciences, Jean Lorougnon Guédé University, P.O. Box 150, Daloa (Ivory Coast).

Research Article

World Journal of Advanced Research and Reviews, 2026, 30(02), 237-243

Article DOI: 10.30574/wjarr.2026.30.2.1180

DOI url: https://doi.org/10.30574/wjarr.2026.30.2.1180

Publication history

Received on 25 March 2026; revised on 28 April 2026; accepted on 01 May 2026

Abstract

This study, conducted at the fish hatchery of the Groupe Général AGRO owned by Mr. OUATTARA Yessorifiala Charles, located in GONATE, aims to produce high-quality, single-sex male fingerlings. The objective is to evaluate the dose of 17α-MT (methyl-testosterone) required for a high sex-reversal rate and to optimize the growth of male Oreochromis niloticus fingerlings by adding this hormone to their feed for 28 days. Forty thousand (40,000) male fingerlings were produced with a 95% success rate over three months. This study can be replicated using other methods of tilapia sex reversal. To ensure the sector’s sustainable development, it is proposed to strengthen the technical and financial capacities of stakeholders.

Keywords

Evaluation; Feed; Fish Hatchery; Methyltestosteron; Oreochromis niloticus

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N’dri Florentine ASSAN, Awa TRORE, Marie Jeanne Adelaide épouse Yao OHOU, Taubo Don César DAN and Noel GROGA. Evaluation of the efficacy of 17α-methyltestosterone incorporated into feed on the rate of masculinization in Oreochromis niloticus fry in the Upper Sassandra region (Ivory Coast). World Journal of Advanced Research and Reviews, 2026, 30(02), 237-243. Article DOI: https://doi.org/10.30574/wjarr.2026.30.2.1180.

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Evaluation of the efficacy of 17α-methyltestosterone incorporated into feed on the rate of masculinization in Oreochromis niloticus fry in the Upper Sassandra region (Ivory Coast)

N’dri Florentine ASSAN ^{1, 2, *}, Awa TRORE ^{1, 2}, Marie Jeanne Adelaide épouse Yao OHOU ^{1, 2}, Taubo Don César DAN ¹ and Noel GROGA ¹

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Evaluation of the efficacy of 17α-methyltestosterone incorporated into feed on the rate of masculinization in Oreochromis niloticus fry in the Upper Sassandra region (Ivory Coast)

N’dri Florentine ASSAN 1, 2, *, Awa TRORE 1, 2, Marie Jeanne Adelaide épouse Yao OHOU 1, 2, Taubo Don César DAN 1 and Noel GROGA 1

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N’dri Florentine ASSAN ^{1, 2, *}, Awa TRORE ^{1, 2}, Marie Jeanne Adelaide épouse Yao OHOU ^{1, 2}, Taubo Don César DAN ¹ and Noel GROGA ¹