Effects of 17ß-estradiol Hormone on Growth and Sex Differentiation in the Mozambique Tilapia (Oreochromis mossambicus, Peters, 1852)
Abstract
In this study, the effects of 17-ß-estradiol hormone on the zootechnic performances and sex ratio of Mozambique Tilapia (Oreochromis mossambicus. Peters, 1852) fry were investigated in order to initially produce functional phenotypical females and then super males. To this end, different E2 concentrations (50, 100, 150 and 200 ppm) were tested over a period of 45 days in a closed recirculating system. The evaluations showed that the female ratio was significantly (p value= 0.04 and α=0.05) higher in all treatment groups ranging from 61.90% to 86.36% compared to the control group. Growth was significantly higher (F value=22.78 and p value=0.00) in the control group compared to the treatment ones.
Keywords
References
- Abucay, J. S., & Mair, G. C. (1997). Hormonal sex reversal of tilapias: implications of hormone treatment application in closed water systems. Aquaculture Research, 28, 841–845.
- Alcántar-Vázquez J. P., Rueda-Curiel, P. D., Calzada-Ruíz, C., Antonio-Estrada, C., & Moreno-de la Torre, R. (2015). Feminization of the Nile tilapia Oreochromis niloticus by estradiol 17-ß Effects on growth, gonadal development and body composition. Hidrobiológica, 25(2), 275–283.
- Arboleda-Obregón, D. A. (2005). Reversión sexual de las tilapias rojas (Oreochromis Sp), una guía básica para el acuicultor. Revista Electrónica de Veterinaria, 6, 1–5.
- Arcand-Hoy, L. D., & Benson, W. H. (1998). Fish reproduction: an ecological relevant indicator of endocrine disruption. Environmental Toxicology and Chemistry, 17(1), 49–57.
- Azaza, M. S, Dhraief, M.S., & Kraiem, M. M. (2008). Effects of water temperature on growth and sex ratio of juvenile Nile tilapia Oreochromis niloticus (Linnaeus) reared in geothermal waters in southern Tunisia. J Therm Biol, 33, 98–105.
- Azim, M. E., & Little, D. C. (2008). The biofloc technology (BFT) in indoor tanks: Water quality, biofloc composition, and growth and welfare of Nile tilapia (Oreochromis niloticus). Aquaculture, 283, 29–35.
- Bagenal, T. B., & Tesch F. W. (1978). Methods for assessment of Fish Production I Freshwaters. T. B. (9 ed.), London: Oxford Blackwell Scientific.
- Beardmore, J. A., Mair, G. C., & Lewis, R. I. (2001). Monosex male production in finfish as exemplified by Tilapia: Applications, problems, and prospects. Aquaculture, 197, 283–301.
Details
Primary Language
English
Subjects
-
Journal Section
Research Article
Authors
Karl Christofer Kingueleoua Koyakomanda
This is me
Türkiye
Muamer Kürşat Fırat
This is me
Türkiye
Cüneyt Süzer
This is me
Türkiye
Serhat Engin
This is me
Türkiye
Müge Hekimoğlu
*
Türkiye
Hülya Sayğı
This is me
Türkiye
Osman Özden
This is me
Türkiye
Fatih Güleç
Türkiye
Şahin Saka
This is me
Türkiye
Publication Date
January 7, 2019
Submission Date
December 21, 2018
Acceptance Date
February 7, 2019
Published in Issue
Year 1970 Volume: 34 Number: 1
Open Access Statement: