The lagoon waters of Côte d’Ivoire contribute to the country’s self-sufficiency in fish products, in the face of ever-increasing needs. This study examines the current state of exploitation of the Aby lagoon by individual fishermen. It is the result of three months of surveys, from April to June 2022, with fishermen and the fisheries administration of Adiaké. The results show that fishing is in the hands of nationals. Mostly uneducated (50%), those traditional fishermen use as dominant gears: small-mesh nets (75.20%) and nailed plank pirogues (61.91%). The most important species in catches are Ethmalosa fimbriata and Sarotherodon melanotheron with proportions of 34.78% and 30.43% respectively. The annual biomass is estimated at around 275.73 tons. There is a poor cooperation between fishermen and the administration, which impacts negatively the statistical data. The use of non-selective gears remains one the major constraints against the preservation of aquatic biodiversity. Therefore, management programs and research projects have to be implemented for avoiding an eventual collapse of stocks. A study on the spatio-temporal distribution of species with high aquaculture potential could be considered.

The present study was carried out in Karakoro commune to assess the effects of incorporating powder from Moringa oleifera leaves on growth performance, laying and egg quality of ISA Brown laying hens. To do this, three batches of 100 laying hens were made and fed with three diets containing different levels of incorporation of Moringa oleifera powder. The experiment lasted eight weeks. Lot A was fed with feed without incorporation of Moringa oleifera. Lots B and C were fed feed containing Moringa oleifera leaf powder incorporation rates of 1% and 5%, respectively. In terms of the growth performance of the laying hens, the results showed that the average weight of the subjects of batch A which was 1.64 g at the 29th week was higher than those of batches B and C with respective weights of 1, 61 g and 1.57 g without significant difference (P(0.05). On the other hand, in terms of spawning performance, batch C obtained better results. The average egg weight of the laying hens in batch C (58.6 g) was greater than that of batch B (50.19 g) and batch A (47.85 g). Ultimately, breeders should incorporate Moringa oleifera powder into the diets of laying hens to improve laying performance.

Sanitation and health of populations regarding malaria and diarrhea syndromes were studied in precarious neighborhoods of Abobo (Abidjan, Côte d’Ivoire). Globally, 587 concessions were sampled with 14 232 people. Human excreta are essentially disposed in autonomous sanitation systems (8-88%). The grouping of neighborhoods according to their sanitation gave three entities: (Anonkoua and Abobo PK-18) (Sagbé, Avocatier, M'Ponon and Jean-Tahi) and (Abobo-Baoulé). People have access to the drinking water from SODECI for various usages depending on the use and the season. Drinking water from SODECI is the only one used in the dry season, but it’s partially substituted by rainwater during the rainy season for bath, clothes washing and dishes. However, it is exclusively used for drinking regardless of the season. The classification of precarious neighborhoods based on water use gives five groups: (Anonkoua, Avocatier) (Sagbé, Abobo PK-18), (Jean-Tahi) (M'Ponon) and (Abobo-Baoulé). Population health in these areas is worrying with 47% of patients (35% of malaria syndrome cases and 12% of diarrhea syndrome cases). The young population ([0-8 years [) is the most affected, with 25% of malaria syndrome cases and 34% of diarrhea syndrome cases.