Laboratoire de Phytotechnie, d'Amélioration et de Protection des Plantes (LaPAPP), Faculty of Agronomy, University of Parakou, Parakou, Republic of Benin.
Biochemistry and Pharmacognosy Division, Unit of Zootechnics and Livestock System Research, Laboratory of Animal and Fisheries Sciences, National University of Agriculture, P. O. Box 55, Porto-Novo, Benin.