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Research Article

Effect of Commercial and Artisanal Hormone-Treated Feed on the Sex Reversal of Tilapia (Oreochromis niloticus) in the Soconusco Region, Chiapas

Authors

  • Gema Beatriz Estrada-Damián Center for Technological Studies, Continental Waters No. 22 (CETAC 22), Mexico
  • Liliana López-Tirado Center for Technological Studies, Continental Waters No. 22 (CETAC 22), Mexico https://orcid.org/0009-0004-8721-5078

    lopeztiradoliliana@gmail.com

  • Naara Jocabed Hernández-Montejo Center for Technological Studies, Continental Waters No. 22 (CETAC 22), Mexico
  • Pedro Martín Negrete-Moreno Center for Research on Coastal and Continental Systems, Autonomous University of Chiapas, Campus IV, Mexico
  • Edgar Tovar-Juárez Center for Research on Coastal and Continental Systems, Autonomous University of Chiapas, Campus IV, Mexico https://orcid.org/0000-0002-9536-2383
  • Victoria Mendoza-Cruz Center for Technological Studies, Continental Waters No. 22 (CETAC 22), Mexico

Abstract

This study evaluated the effect of commercial and artisanal feed treated with the hormone 17-alpha-methyltestosterone on the sex reversal of tilapia (Oreochromis niloticus) in the Soconusco region of Chiapas, Mexico. A completely randomized experimental design was implemented with three treatments: hormone-treated artisanal feed (T1), hormone-treated commercial feed (T2), and a control group of mixed organisms without hormone treatment (T3), each with three replicates. The fry was fed for 28 days under controlled conditions, and the percentage of males was subsequently determined by direct gonadal analysis. The results showed masculinization rates of 93% in T1, 78% in T2, and 67% in T3. Statistical analysis using the chi-square test revealed significant differences between treatments (χ² = 12.47; p < 0.05), confirming the greater efficacy of the artisanal feed, possibly associated with better hormone fixation and stability during natural evaporation and refrigerated storage. The results demonstrate that artisanal feed containing 17-alpha-methyltestosterone at 60 mg/kg is a technically viable and low-cost alternative for producing monosex tilapia populations, highlighting the need to standardize preparation processes to optimize reproductive efficiency and environmental safety in tropical aquaculture systems. It is adoption can strengthen the productive efficiency and profitability of aquaculture systems, offering an accessible option for producers in the Soconusco region.

Keywords:

17 Alpha-Methyl-Testosterone Aquaculture Masculinization

Article information

Journal

Journal of Agriculture, Aquaculture, and Animal Science

Volume (Issue)

2(2), (2025)

Pages

160-164

Published

06-12-2025

How to Cite

Estrada-Damián, G. B., López-Tirado, L., Hernández-Montejo, N. J., Negrete-Moreno, P. M., Tovar-Juárez, E., & Mendoza-Cruz, V. (2025). Effect of Commercial and Artisanal Hormone-Treated Feed on the Sex Reversal of Tilapia (Oreochromis niloticus) in the Soconusco Region, Chiapas. Journal of Agriculture, Aquaculture, and Animal Science, 2(2), 160-164. https://doi.org/10.69739/jaaas.v2i2.1134

References

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Contreras, G. M. J., Contreras, S. W. M., Macdonal, V. A., & Hernández, V. U. (2017). Efecto de la 17ª-Metiltestosterona en la masculinización de la mojarra nativa Peteia splendida. Kuxulkab, 18, 34. https://revistas.ujat.mx/index.php/kuxulkab/article/view/2069/167

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Hurtado, N. (2005). Inversión sexual en tilapias. https://www.ciclidosmexico.com/articulos/nh_invsextilapia.pdf

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López, C., Carvajal, D., & Botero, M. (2007). Mazculinización de tilapia roja (Oreochromis spp) por inmersión utilizando 17 alfa-metiltestosterona. Revista colombiana de ciencias Pecuarias, 20, 318-326. https://revistas.udea.edu.co/index.php/rccp/article/view/324145/20781327

Montoya, T. D. (2013). Reversión sexual en tilapias con hormona 17alfa metiltestosterona a diferentes dosis 40-60-80 mg/Kg. De alimento en Tena sector Uglopamba. Tesis de licenciatura de la Universidad Técnica de cotopaxi. https://repositorio.utc.edu.ec/server/api/core/bitstreams/72e9a772-a580-45af-91c8-52616c6f9e5e/content

Torres-Hernández, P., Nucamendi-Rodríguez, G., B., Pintos-Terán, P., & Montoya-Márquez, J. A. (2010). Masculinización de la tilapia de Nilo Oreochromis niloticus (actinopterygii: cichlidae) por inmersión en fluoximesterona y testosterona enantado. Zootecnia Tropical, 28, 341-351. https://ve.scielo.org/scielo.php?script=sci_arttext&pid=S0798-72692010000300005

Vega-Galarza, E. V. (2018). Tratamiento oral con letrozol, inhibidor, de aromatasa para la masculinización de alevines de Tilapia gris (Oreochromis niloticus) Tesis de maestría Universidad Nacional Agraria la Molina. https://repositorio.lamolina.edu.pe/server/api/core/bitstreams/e7e81d72-af7b-45ec-ac33-af999258aae4/content

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