Resumen de Evaluación de un método combinado de control de la hemoncosis ovina bajo condiciones controladas

F. Arroyo Balán, M. Eugenia López Arellano, E. Liébano Hernández, Víctor Manuel Vázquez Prats, A. Ortiz de Montellano, Maria Sol Arias Vázquez, Cristiana Filipa Cazapal Monteiro, P. Mendoza-De Gives

• The aim of this research was to evaluate the efficacy of a combined method of parasitic control, with albendazole and Duddingtonia flagrans chlamydospores in Haemonchus contortus artificially infected sheep. Forty H. contortus-infected sheep were used. This experiment was carried out in a 90-day period. Sheep were ramdomly divided into four groups of 10 animals each and received the following treatments: Group 1, albendazole at 7.5 mg/kg at days 0, 30 and 60; Group 2, received an oral treatment with 1x106 D. flagrans chlamydospores per kilogram; Group 3 received a combined treatment: albendazole was orally administered twice, at days 1 and 60 at the previously mentioned dose, and was also orally treated with D. flagrans chlamydospores everyday from day 30 to day 60 at the same dose than group 2; Group 4 (control group). Results showed a high anthelmintic efficacy (91%) for albendazole; meanwhile, the biological and the combined methods resulted in 69 and 79% larval reduction in fecal cultures; respectively and the three groups showed statistic differences with respect to the control group. The combined method using albendazole and D. flagrans chlamydospores is a promissory alternative against the ovine haemonchosis.