Effects of four tropical tanniniferous plant extracts on the inhibition of larval migration and the exsheathment process of Trichostrongylus colubriformis infective stage
Por:
Alonso-Díaz M.A., Torres-Acosta, JFJ, Sandoval-Castro C.A., Capetillo-Leal C., Brunet S., Hoste H.
Publicada:
6 may 2008
Resumen:
The anthelmintic (AH) effect of Acacia pennatula, Leucaena leucocephala, Lisyloma latisiliquum and Piscidia piscipula was evaluated in the infective larvae (L-3) of Trichostrongylus colubriformis. Different concentrations of lyophilized extracts were tested using the larval migration inhibition (LMI) test. An inhibitor of tannins (the polyvinyl polypyrrolidone [PVPP]) was used to verify whether these compounds were responsible for the AH effects. Then, the effect of extracts on larval exsheathment was examined by observing the exsheathment process at 10-min intervals for 70 min. The LMI test showed a dose-dependant AH effect for A. pennatula, L leucocephala and L. latisiliquum (P < 0.01), but not for P. piscipula. The restoration of L3 migration to values similar to those of controls after the addition of PVPP, indicates that tannins are involved in AH effects. Trichostrongylus colubriformis exsheathment was partially or totally blocked by the four plants extracts. Tropical tanninifero
Filiaciones:
Alonso-Díaz M.A.:
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Km 15.5 Carretera Merida-Xmatkuil, Mérida, Yucatán, Mexico
Centro de Enseñanza Investigación y Extensión en Ganadería Tropical, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Km 5.5 Carretera Federal Tlapacoyan-Martinez la Torre, C.P. 93600 Veracruz, Mexico
Sandoval-Castro C.A.:
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Km 15.5 Carretera Merida-Xmatkuil, Mérida, Yucatán, Mexico
Capetillo-Leal C.:
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Km 15.5 Carretera Merida-Xmatkuil, Mérida, Yucatán, Mexico
Brunet S.:
UMR 1225 INRA DGER, 23 Chemin des Capelles, F31076 Toulouse, France
Hoste H.:
UMR 1225 INRA DGER, 23 Chemin des Capelles, F31076 Toulouse, France
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