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Ticks and tick-borne diseases v.8 no.3, 2017년, pp.379 - 384   SCIE
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Life cycle and parasitic competence of Dermacentor nitens Neumann, 1897 (Acari: Ixodidae) on different animal species

Rodrigues, Vinicius da Silva (Pós-Graduação em Doenças Infecciosas e Parasitárias—Faculdade de Medicina, UFMS—Univ. Federal Mato Grosso do Sul, Laboratório de Biologia do Carrapato, Embrapa Gado de Corte, Campo Grande, MS, Brazil ) ; Garcia, Marcos Valério (Laboratório de Biologia do Carrapato, Empresa Brasileira de Pesquisa Agropecuária, Embrapa Gado de Corte, Bolsista DCR Fundect, MS—Governo do estado de Mato Grosso do Sul, Campo Grande, MS, Brazil ) ; Cruz, Breno Cayeiro (Faculdade de Ciências Agrárias e Veterinárias, UNESP—Univ. Estadual Paulista, Campus de Jaboticabal, Departamento de Patologia Veterinária, CPPAR—Centro de Pesquisas em Sanidade Animal, Brazil ) ; Maciel, Willian Giquelin (Faculdade de Ciências Agrárias e Veterinárias, UNESP—Univ. Estadual Paulista, Campus de Jaboticabal, Departamento de Patologia Veterinária, CPPAR—Centro de Pesquisas em Sanidade Animal, Brazil ) ; Zimmermann, Namor Pinheiro (Laboratório de Biologia do Carrapato, Empre ) ; Koller, Wilson Werner ; Barros, Jacqueline Cavalcante ; Andreotti, Renato ;
  • 초록  

    Abstract The objective of this study was to evaluate the life cycle and parasitic competence of Dermacentor nitens (Neumann, 1897) on different animal species. Experimental infestations were induced in five specimens each of seven species of possible hosts: rabbits, horses, sheep, cows, guinea pigs, birds and dogs. Rabbits were infested in the ear using artificial feeding chambers, and the horses, sheep, cows and dogs were infested in the ear without feeding chambers. For the infestation of guinea pigs, artificial feeding chambers were fixed on the back. Birds were infested by placing larvae on the back and under the wings without the use of chambers. All animals were inspected daily until the end of the parasitic phase (when the engorged females detached). The average period of engorgement was 25.1days on a horse, with larvae requiring 8days and nymphs 9days to reach engorgement; the average weight of engorged females was 271.4mg; the average weight of egg batches produced was 159.3mg, and the feed conversion rate was 56.8%. On rabbits, the average engorgement period was 27.6days, larvae and nymphs reached engorgement after 7.4 and 11days, respectively, the average weight of an engorged female was 108.4mg and the egg mass was 30.6mg. The feed conversion rate on rabbits was 30%. Cows, sheep, guinea pigs, dogs and birds were not competent hosts, since no engorged females were recovered. Rabbits, when artificially infested, can be used as an alternative host for the maintenance of these ticks in the laboratory. The parasitic specificity of D. nitens for horses was demonstrated in this study.


  • 주제어

    Hosts .   Tick .   Artificial infestation .   Dermacentor nitens.  

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