Caractérisations physico-chimiques et bactériologiques des eaux des stations aquacoles de Layo et de Jacqueville (Lagune Ebrié, Côte d’Ivoire)

Toule, Aubin Cyrille; Adingra, A.A.; Kouadio-Ngbesso, Nadége; Ollo, Kambiré; Koffi-Névry, Rose; Koussémon, Marina

doi:10.4314/ijbcs.v11i6.22

Cited by 4 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although the use of antibiotics is not practiced at the Layo fish farm, although no feed is added, high resistance has been detected in strains of E. coli from fish. These contaminations could be due to water runoff from surrounding farms and food crop areas (use of ATB), to the lagoon which is a receptacle of urban waste [30][31][32]5] including those in hospitals, especially since these waters communicate with the groundwater supplying the ponds. There are also the hygienic habits of workers and residents and also the way the fish are fed, which could explain these contaminations.…”

Section: Discussionmentioning

confidence: 99%

“…In May 2013, this phenomenon became more pronounced, leading to the closure of fishing and some aquaculture farms located in the vicinity of this lagoon. Recent work [5] on the waters in the ponds of this experimental farm revealed their strong contaminations with faecal coliforms and Vibrio. Our recent studies conducted [6], revealed the presence of enteropathogenic, toxigenic and enteroinvasive strains of E. coli in the gills and viscera of fish Oreochromis niloticus caught in Layo ponds, an aquaculture station.…”

Section: Introductionmentioning

confidence: 96%

See 1 more Smart Citation

Untitled

2024

OAJMB

View full text Add to dashboard Cite

The objective of this work was to determine the antibiotic resistance and the resistance phenotypes of pathogenic strains of E. coli isolated from gills and viscera of fish from Layo ponds in "One Health" approach. Eleven (11) strains of E. coli belonging to the pathovars Enteropathogenic E. coli (EPEC=4), Shiga toxinogenic E coli (STEC=5), Enteroinvasive E. coli (EIEC=2) from our previous work on gills (7) and viscera (4) of fish Oreochromis niloticus, was tested by Müller-Hinton agar diffusion method. Nineteen (19) antibiotics divided into 9 differents families (Penicillins, Cephalosporins, Monobactam, Carbapenems, Quinolone, Aminoside, Cyclin, Phenicol, Phosphonique Acid) were tested. The results shown that all strains (100%) were resistant to amoxicillin, amoxicillin + clavulanic acid and piperacillin tazobactam. Resistance was also observed with 3 rd generation antibiotics (CTX, CAZ, FEP, TCG) and monobactam (ATM) in EPEC and STEC strains only. Fifty percent (50%) of resistance were observed to CTX and CAZ and 25% to Monobactam in EPECstrains. Fourty percent (40%) of resistance were observed to CTX and CAZ and 20% to Monobactam in STEC strains. More than half of strains studied were resistant to fosfomycin (63%). The resistance phenotype observed among E. coli pathovars (EPEC, EIEC and STEC) revealed that, 18% of EPEC and 9% of EIEC had a high level of penicillinase phenotype. A high level of cephalosporinase phenotype was represented respectively in 9% of EPEC and STEC. These resistances have been observed although antibiotics are not used in this farm reflecting the pollution of the fish living environment (supply water). Efforts are needed to promote more judicious use of prophylactic antibiotics in both human and animal health to reduce their presence in environment. If environment and everything that lives in are doing well, people will be doing well too.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Untitled

2024

OAJMB

View full text Add to dashboard Cite

show abstract

“…Cependant, les systèmes d'élevage des poissons (semi-intensif et intensif) en vigueur dans nos pays, sont confrontés au problème de diminution de la qualité de l'eau causée par les déchets sous forme de déchets métabolites (fèces et urine) et les résidus d'aliments non consommés (Halla et al, 2023). Ces déchets augmentent la teneur en ammoniac (NH3), nitrite (NO -2) et nitrate (NO -3) dans le milieu d'élevage (Toule et al, 2017) L'accumulation de ces métabolites entraîne la formation de composés toxiques pour les poissons, la minéralisation des nutriments qui produisent de l'azote organique, et une absorption élevée d'oxygène, accélérant ainsi le déclin de la qualité de l'eau qui a un impact sur la survie des poissons (Shin et al, 2016 ;Palupi et al, 2021). L'objectif de cette étude était d'évaluer l'influence des aliments à base des farines de poisson, de Spiruline, d'asticot, de ver de terre et de l'aliment commercial Ivograin (aliment de référence) sur la qualité du milieu d'élevage du tilapia Oreochromis niloticus à différentes phases d'élevage (larvaire, prégrossissement et grossissement).…”

Section: Introductionunclassified

Influence de la substitution totale de la farine de poisson par celles de spiruline, d’asticot et de ver de terre dans l’alimentation du tilapia Oreochromis niloticus sur la qualité de l’eau d’élevage

Gbai,

Ouattara,

Ouattara

et al. 2024

Int. J. Bio. Chem. Sci

View full text Add to dashboard Cite

Cette étude a été conduite en vue d’évaluer l’influence de la substitution totale de la farine de poisson par celles de Spiruline, d’asticot et de ver de terre sur la qualité du milieu d’élevage du tilapia Oreochromis niloticus en phases larvaire, prégrossissement et grossissement. Les paramètres physico-chimiques de l’eau des bacs en béton et des étangs ont été déterminés durant les trois phases d’élevage des poissons. Les températures de l’eau enregistrées variaient de 27,30 ± 0,80 à 29,40 ± 0,80°C. Quant aux pH relevés, les valeurs moyennes obtenues oscillaient entre 6,40 ± 0,08 et 7,20 ± 0, 02. Les concentrations en oxygène dissous se situaient entre 7,14 ± 0,32 et 9,43 ± 0,38 mg.L-1 . Les analyses statistiques de ces différentes valeurs ne montraient aucune différence significative (p > 0,05) au niveau de la température, du pH et de l’oxygène dissous. Durant les trois phases d’élevage, les teneurs en nitrites (NO2), en nitrates (NO3), en ammonium (NH4 + ), en phosphores (PO3-4) et la conductivité de l’eau d’élevage ont été déterminées. Il en ressort que, les paramètres physico-chimiques du milieu d’élevage n’ont pas été influencés par les types d’aliments utilisés. Les valeurs enregistrées dans cette étude pour ces paramètres étaient dans les limites recommandées pour l’élevage de cette espèce et permettent de dire que les eaux des bacs et des étangs expérimentaux étaient de bonne qualité pour la croissance et la survie des poissons English title: Influence of the total substitution of fish meal by that of spirulina, maggot and earthworm in feeding tilapia Oreochromis niloticus on the quality of rearing water This study was carried out in order to evaluate the influence of the total substitution of fish meal by that of Spirulina, maggot and earthworm on the quality of the water for breeding tilapia Oreochromis niloticus in larval, juvenile and adult phases. The physicochemical parameters of the water in the concrete tanks and ponds were determined during the three phases of fish rearing. The recorded water temperatures ranged from 27.30 ± 0.80 to 29.40 ± 0.80°C. As for the pH recorded, the average values obtained oscillated between 6.40 ± 0.08 and 7.20 ± 0.02. The dissolved oxygen concentrations were between 7.14 ± 0.32 and 9.43 ± 0.38 mg.L-1. Statistical analyzes of these different values showed no significant difference (p > 0.05) in temperature, pH and dissolved oxygen. During the three breeding phases, the contents of nitrites (NO2), nitrates (NO3), ammonium (NH4+), phosphorus (PO3-4) and the conductivity of the breeding water were determined. It appears that the physicochemical parameters of the rearing water were not influenced by the types of feed used. The values recorded in this study for these parameters were within the recommended limits for the breeding of this species and allowed us to say that the waters of the tanks and experimental ponds were of good quality for the growth and survival of the fish.

show abstract

“…What's more, in breeding ponds, uneaten food and metabolites released by captive fish could accumulate in the sediments, providing a good source of nutrients for the various bacteria found there. Furthermore, the penetration of rain and the deposition of soil particles and organic matter into ponds by runoff could lead to biological pollution of the water, which would contaminate the fish [10]. Agricultural effluents, waste and urban discharges contaminate the aquatic environment with antibiotic-resistant pathogenic bacteria that damage fish stocks [11].…”

Section: Introductionmentioning

confidence: 99%

Specific Diversity of Fish Ponds in the Haut-sassandra and Risks of Contamination by Potential Pathogens among Oreochromis niloticus (Tilapia)

Frejus,

Clément,

Athanase

et al. 2024

AJFAR

View full text Add to dashboard Cite

Fishery and aquaculture products are an important source of protein in the human diet and a real source of income for producers. However, fish farming is still less well known among the Ivorian population, and does not yet benefit from technical assistance. This could have an impact on the quality of aquaculture resources. This study was therefore carried out firstly to assess the current state of fish farming in the Haut-Sassandra region, and then to evaluate contamination by potential bacterial pathogens of tilapia fish from fish ponds in this region. To this end, a survey was carried out from June to December 2022 using questionnaires. The survey consisted of direct interviews and farm visits to collect data. Tilapia fish were then sampled and analyzed. It emerged that fish farming is a fast-growing activity in the Haut-Sassandra region, but is practiced in a related way. It is mostly practiced by people aged between 35 and 50, most of whom have a primary education. Females account for 2.66%. The dominant system is extensive, practiced in dam and diversion ponds where several activities coexist. In this region, 100% Tilapia (Oreochromis niloticus), 21% Cameroon (Heterotis niloticus) and 48% Catfish (Clarias gariepinus) are found on all farms. Of the two pond types, the barrage ponds had the best characteristics. Microbiological analyses revealed the presence of potentially pathogenic species, notably Escherichia coli, Staphylococcus aureus Salmonella spp and Enterococcus in tilapia from these fish ponds. Fish farming is a fast-growing activity, but it needs special attention to meet the needs of the Ivorian population.

show abstract

Caractérisations physico-chimiques et bactériologiques des eaux des stations aquacoles de Layo et de Jacqueville (Lagune Ebrié, Côte d’Ivoire)

Cited by 4 publications

References 7 publications

Untitled

Untitled

Influence de la substitution totale de la farine de poisson par celles de spiruline, d’asticot et de ver de terre dans l’alimentation du tilapia Oreochromis niloticus sur la qualité de l’eau d’élevage

Specific Diversity of Fish Ponds in the Haut-sassandra and Risks of Contamination by Potential Pathogens among Oreochromis niloticus (Tilapia)

Contact Info

Product

Resources

About