Comparative Study of Spawn Performance of Three Wild Populations of Oreochromisniloticus (linnaeus, 1758) From Mono Basinin Benin
Year: 2025
Type: article
Abstract: This study aims to assess the spawn performance of three populations of O. niloticus collected in Sohoumè, Nangbéto and Togbadji stations of Mono basin. By population, wild spawners were collected and distributed separately in two tanks, one containing ten females and the other five males. The male was brought into the females’tank. At each spawning, the eggs were collected, measured and the laying female was tagged and returned to the tank. For the three populations, the average total weight of eggs, average absolute fecundity, average relative fecundity, and average gonado-somatic index per population rangedrespectively from 8.6 ± 3 to 9.6 ± 1.7 g ; 1304 ± 323.1 to 1402 ± 371.4 eggs; 4.7 ± 1.6 to 6.4 ± 1.2 eggs / g of female and 3 ± 1.2 to 4.4 ± 1.8% without significant differences. Diameter of the eggs varied significantly (P ˂ 0.01) from 1.9 ± 0.2 to 2.2 ± 0.4 mm between the three populations with the population of Togbadji which thus, displays the best performance of spawning.
Authors: Laboratoire d’Hydrobiologie et d’Aquaculture (LHA), Faculté des Sciences Agronomiques, Universitéd’Abomey-Calavi, 01 BP: 526 Cotonou, Benin., Mohammed Nambyl Adeoti Fagbemi, Institut Superieur des Sciences et de Medecine Veterinaire (ISSVM) de Dalaba, Departement de Pêche et Aquaculture, BP09 Tangama, Guinée., Sedjro Martin Arnaud Djissou, Institut Superieur des Sciences et de Medecine Veterinaire (ISSVM) de Dalaba, Departement de Pêche et Aquaculture, BP09 Tangama, Guinée., Daouda Konate, Institut Superieur des Sciences et de Medecine Veterinaire (ISSVM) de Dalaba, Departement de Pêche et Aquaculture, BP09 Tangama, Guinée., Djiman Lederoun, Laboratoire d’Hydrobiologie et d’Aquaculture (LHA), Faculté des Sciences Agronomiques, Universitéd’Abomey-Calavi, 01 BP: 526 Cotonou, Benin., Luc Bonaventure Badji, Institut Superieur des Sciences et de Medecine Veterinaire (ISSVM) de Dalaba, Departement de Pêche et Aquaculture, BP09 Tangama, Guinée., Yamoussa Bangoura, Institut Superieur des Sciences et de Medecine Veterinaire (ISSVM) de Dalaba, Departement de Pêche et Aquaculture, BP09 Tangama, Guinée., Philippe Adedjobi Laleye, Laboratoire d’Hydrobiologie et d’Aquaculture (LHA), Faculté des Sciences Agronomiques, Universitéd’Abomey-Calavi, 01 BP: 526 Cotonou, Benin.
Language: English
Subfield: Physiology
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
OpenAlex ID: W4411298481