Comparative study of the breeding performances of five populations of Nile tilapia (Oreochromis niloticus) (F1) in an experimental ongrowing system in Benin (West Africa)

ABSTRACT

In order to investigate the breeding performances of five F1 populations of Oreochromis niloticus originated from wild broodstock of Nangbéto, Sohoumè and Togbadji in the Mono basin, Gobé in the Ouémé basin and Gbassa in the Niger basin, breeding tests were conducted for 10 weeks in an ongrowing experimental system. All tested populations were checked daily in order to collect spawn and to compare the reproductive performances. Compared with others, Sohoumè, Togbadji, and Gobé populations significantly (P < .05) displayed the best breeding performances in terms of rate of multi-spawning females (89.3 ± 15.2–92.3 ± 10.8%); mean relative fecundity (4 ± 2–6 ± 3 eggs/g of female), mean gonadosomatic index (3.1 ± 2–4.8% ± 2.6); mean absolute fecundity rates (865 ± 339–989 ± 547 eggs); mean fertilization rates (98 ± 4.3–99.3 ± 1.1%); and mean hatching rates (83.7 ± 10–88.9 ± 9.1%).

KEYWORDS:

• Oreochromis niloticus
• basin
• spawning
• West Africa

Acknowledgments

Mohammed N. A. FAGBEMI is a PhD grant holder from the Academy of Research and Higher Education (ARES-CCD) through the Research and Development Project “OpTil-Benin.” We would like to thank ARES for funding this work and also thank our colleague Renaud Nivelle for the advice provided for the statistical processing.

Disclosure statement

The authors declare that they have no conflict of interest.

Data availability statement

All data generated or used during the study appear in the submitted article.

Authors contributions

Conceptualization: Charles Mélard, Carole Rougeot, Philippe Laleye

Data curation: Mohammed N. A. Fagbémi, Razzak Oloukoule, Imaculé Baglo

Funding acquisition: Charles Mélard, Carole Rougeot, Philippe Laleye.

Investigation: Charles Mélard, Carole Rougeot, Philippe Laleye

Methodology: Charles Mélard, Carole Rougeot, Mohammed N. A. Fagbémi

Software: Mohammed N. A. Fagbémi

Supervision: Charles Mélard, Carole Rougeot, Philippe Laleye, Djiman Lederoun

Visualization: Mohammed N. A. Fagbémi, Djiman Lederoun

Writing – original draft: Mohammed N. A. Fagbémi.

Writing – review and editing: Charles Mélard, Carole Rougeot, Philippe Laleye, Djiman Lederoun, Mohammed N. A. Fagbémi

Additional information

Funding

This work was supported by the Académie de recherche et d’enseignement supérieur.