, de caractériser des souches du parasite H.contortus pour leur résistance aux produits anthelminthiques de synthèse, d'une part, et pour leur sensibilité aux tanins condensés d'autre part

, Les souches caractérisées sont majoritairement sensibles à l'ivermectine et au lévamisole et présentent une résistance au thiabendazole. Sur les 5 souches testées, une est résistante à tous les anthelminthiques de synthèse évalués

, Les TC peuvent être utilisés pour lutter contre ces parasites résistants aux anthelminthiques de synthèse, mais avec des efficacités variables. Cette variabilité serait liée à la complexité structurale des tanins condensés et à la présence d'autres composés actifs dans les extraits de plantes, mais aussi à la nature de la résistance des parasites

, Il convient maintenant d'approfondir la compréhension des mécanismes d'action de ces composés en lien avec les caractéristiques de résistance, afin d'optimiser l'utilisation des plantes à tanins condensés en élevage

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