Reproductive performance of Nile tilapia Oreochromis niloticus, Linnaeus, 1758 Akosombo strain in a controlled environment in Côte d'Ivoire

Résumé fourni par la source

The present study aimed to evaluate the reproductive performance of the Akosombo strain of Oreochromis niloticus in Côte d’Ivoire, in order to contribute to the improvement of local aquaculture production systems. Thus, 64 breeders were placed in two hapas of 10 m², at a density of 3.2 breeders/m² with a sex ratio of 1 male to 3 females, and fed at 5% of their biomass. Fry were collected every 14 days. A total of 64,288 larvae with an average weight of 0.011 ± 0.0 g were produced over four (04) collections. The average fry production per gram of female per day was 0.15 ± 0.13 fry during the trial period. The physicochemical parameters regarding temperature, dissolved oxygen, and pH were within the recommended farming values. The Akosombo strain adapted well to the Ivorian environment and exhibited favorable reproductive performance.