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Host specificity of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae) with comments on the drop-off rhythm
Mem. Inst. Oswaldo Cruz ; 93(3): 347-51, May-Jun. 1998. tab, graf
Artigo em Inglês | LILACS | ID: lil-209955
RESUMO
The parasitic specificity of larval, nymph and adult Amblyomma cajennense on six different host species Oryctolagus cuniculus, Rattus norvegicus, Gallus gallus domesticus, Anas platyrhynchus, Coturnix coturnix and Streptopelia decorata is described. In terms of the numbers of larvae and nymphs recovered, O. cuniculus was the best host species. The modal day for drop-off of lavae and nymphs was day three for the mammal hosts, but variable in the birds. We conclude that adult A. cajennense have a strong degree of specificity due to the fact that the tick failed to complete its cycle on any of the evaluated hosts. The immature stages, on the other hand, showed a low level of specificity, most specially in the larval stage, indicating the existence of secondary hosts which probably serve as dispersers in the wild. The results also indicated a variable drop-off rhythm for larvae and numphs in two periods, diurnal (6-18 hr) and nocturnal (18-6 hr), which differed depending upon the host.
Assuntos
Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Ixodes / Interações Hospedeiro-Parasita Limite: Animais Idioma: Inglês Revista: Mem. Inst. Oswaldo Cruz Assunto da revista: Medicina Tropical / Parasitologia Ano de publicação: 1998 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Ixodes / Interações Hospedeiro-Parasita Limite: Animais Idioma: Inglês Revista: Mem. Inst. Oswaldo Cruz Assunto da revista: Medicina Tropical / Parasitologia Ano de publicação: 1998 Tipo de documento: Artigo