Publications

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[drop off rhythm of rhipicephalus sanguineus (acari: ixodidae) of artificially infested dogs].the present study evaluated the drop-off rhythm of rhipicephalus sanguineus (latreille) ticks from two populations from brazil, one from monte negro, state of rondônia, and another from belo horizonte, state of minas gerais. artificial infestations with ticks were performed on dogs in the laboratory, held in a light: scotophase regimen of 12:12 h. larval drop-off rhythm was characterized by similar number of engorged larvae detaching during both periods of light and scotophase, or by a larger nu ...200819245759
prevalence of ehrlichia canis (rickettsiales: anaplasmataceae) in dogs and rhipicephalus sanguineus (acari: ixodidae) ticks from brazil.the current study evaluated the prevalence of ehrlichia canis donatien and lestoquard in domestic dogs, canis familiaris l., and rhipicephalus sanguineus (latreille) (acari: ixodidae) ticks from different areas of brazil. in monte negro county (state of rondônia, brazilian western amazon), the indirect immunofluorescence assay detected e. canis-reactive antibodies (titer > or = 40) in 58/153 (37.9%) and 40/161 (24.8%) dogs from the urban and rural areas, respectively. these values were significa ...200717294930
gynandromorphism in amblyomma cajennense and rhipicephalus sanguineus (acari: ixodidae).during a survey of ticks on horses in november 2000, at the university of são paulo farm in pirassununga county, são paulo, brazil, 1 gynandromorph of amblyomma cajennense was collected from a naturally infested horse. in another survey on dogs in march 2001, in the urban area of monte negro, rondônia, brazil, a gynandromorph of rhipicephalus sanguineus was collected from a naturally infested dog. both specimens are described and classified as perfect bipartite protogynanders.200212197141
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