Assessing the effects of Guiera senegalensis, Pluchea odorata, and Piliostigma reticulatum leaf powder supplementation on growth, immune response, digestive histology, and survival of nile tilapia (Oreochromis niloticus linnaeus, 1758) juveniles before and after Aeromonas hydrophila infection

Ndour Paul Mamadou, Fall Jean, Darias Maria J., Caruso Domenico, Canonne Marc, Pepey Elodie, Hermet Sophie, Fall Sokhna K. L., Diouf Malick, Sarter Samira. 2024. Assessing the effects of Guiera senegalensis, Pluchea odorata, and Piliostigma reticulatum leaf powder supplementation on growth, immune response, digestive histology, and survival of nile tilapia (Oreochromis niloticus linnaeus, 1758) juveniles before and after Aeromonas hydrophila infection. Fishes, 9 (10), dossier Sustainable Aquaculture:390, 16 p.

Résumé : The effects of three medicinal plants in the feeds of juvenile Nile tilapia (Oreochromis niloticus) were investigated on growth, survival, immunity, and digestive histology at various inclusion levels: (A) Guiera senegalensis at 0, 1, 2, 4, and 8%; (B) Pluchea odorata at 0, 0.5, 1, 2, and 4%; (C) Piliostigma reticulatum at 0, 1, and 2%; and (D) a mixture of the three at 0, 1, and 2%. After 28 days of feeding, fish were infected with Aeromonas hydrophila for 12 days. The results showed that, except for G. senegalensis, the inclusion of the medicinal plants, alone or combined, enhanced the immune response. The diet with 4% P. odorata significantly increased plasma lysozyme and bactericidal activities without affecting feed conversion efficiency or growth. Despite improved immunity, none of the treatments enhanced post-infection survival rates. However, fish fed the 1% mixture showed healthier livers and intestines, with reduced cell swelling and normal lipid deposits, followed by the 2% mixture and the control. These results highlight the potential benefits of incorporating P. odorata and the plant mixture into the diets of Nile tilapia juveniles for enhancing their immune response against A. hydrophila.

Mots-clés Agrovoc : Oreochromis niloticus, plante médicinale, santé animale, bactéricide, Aeromonas hydrophila, Tilapia, lysozyme, organisme nuisible aux animaux, aquaculture, bactérie gram négatif

Mots-clés géographiques Agrovoc : Sénégal

Mots-clés complémentaires : Guiera senegalensis, pluchea odorata, Piliostigma reticulatum

Mots-clés libres : Aeromonas hydrophila, Growth, Immunity, Medicinal plants, Nile tilapia, Histology

Classification Agris : M12 - Production de l'aquaculture
L75 - Pharmacologie et toxicologie
L72 - Organismes nuisibles des animaux

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

Auteurs et affiliations

• Ndour Paul Mamadou, University Cheikh Anta Diop of Dakar (SEN)
• Fall Jean, University Cheikh Anta Diop of Dakar (SEN)
• Darias Maria J., IRD (FRA)
• Caruso Domenico, IRD (FRA)
• Canonne Marc, CIRAD-PERSYST-UMR ISEM (FRA)
• Pepey Elodie, CIRAD-PERSYST-UMR ISEM (FRA)
• Hermet Sophie, Université de Montpellier (FRA)
• Fall Sokhna K. L., University Cheikh Anta Diop of Dakar (SEN)
• Diouf Malick, University Cheikh Anta Diop of Dakar (SEN)
• Sarter Samira, CIRAD-PERSYST-UMR ISEM (FRA) ORCID: 0000-0001-5115-0824 - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/610491/)

Métriques

[ Page générée et mise en cache le 2024-11-13 ]