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      Chapiniella variabilis (Nematoda) parasitizing Chelonoidis carbonarius and C. denticulatus (Testudinidae) in the state of Piauí Translated title: Chapiniella variabilis (Nematoda) parasitando Chelonoidis carbonarius e C. denticulatus (Testudinidae) do estado do Piauí

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          Abstract

          Abstract Chapiniella variabilis (Chapin, 1924), a strongylid nematode, was collected parasitizing the large intestine of the tortoises Chelonoidis carbonarius (Spix, 1824) (Cc) and C. denticulatus (Linnaeus, 1766) (Cd) in the Zoobotanical Park of the municipality of Teresina, state of Piauí, Brazil. The taxonomic identification was based on morphological and morphometric features, using bright-field and scanning electron microscopy. The present study adds new observations on the morphology, mainly relating to the mouth papillae, external and internal leaf-crown elements, excretory pore, deirids and male and female posterior end. The parasitic indices of prevalence (P), mean intensity (MI), mean abundance (MA) and range of infection (RI) of C. variabilis in these two tortoise species were: P = 100%, MI = 833.3, MA = 833.3, RI = 500-1,500 (Cc); P = 100%, MI = 472.2, MA = 472.2, RI = 333-500 (Cd). This record expands occurrences of C. variabilis to a new host, C. carbonarius, and to another state in Brazil, in the Neotropical region of South America. Adjustment to host management with the aim of improving hygiene and health conditions is suggested.

          Translated abstract

          Resumo Chapiniella variabilis (Chapin, 1924), um nematoide estrongilídeo, foi coletado parasitando o intestino grosso de jabutis, Chelonoidis carbonarius (Spix, 1824) e C. denticulatus (Linnaeus, 1766) do Parque Zoobotânico, município de Teresina, estado do Piauí, Brasil. A identificação taxonômica foi baseada nos caracteres morfológicos e morfométricos usando microscopias de campo claro e eletrônica de varredura. O presente estudo adiciona novas observações na morfologia, principalmente relacionadas as papilas bucais, elementos externos e internos da coroa-foliar, poro excretor, deirídeos, e extremidade posterior de machos e fêmeas. Os índices parasitários de prevalência (P), intensidade média (IM), abundância média (AM) e amplitude de variação de infecção (AI) de C. variabilis em ambos jabutis foram P = 100%, IM = 833,3, AM = 833,3, AI = 500-1.500 (Cc); P = 100%, IM = 472,2, AM = 472,2, AI = 333-500 (Cd). Este registro aumenta a ocorrência de C. variabilis a um novo hospedeiro, C. carbonarius, e a um outro estado do Brasil, na região Neotropical da América do Sul. É sugerido um ajuste no manejo dos hospedeiros objetivando melhora das suas condições higiênico sanitárias.

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          Most cited references15

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          Nematóides do Brasil. Parte III: nematóides de répteis

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            Répteis brasileiros: Lista de espécies 2015

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              Las Tortugas y Los Cocodrilianos de Los Paises Andinos Del Trópico

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbpv
                Revista Brasileira de Parasitologia Veterinária
                Rev. Bras. Parasitol. Vet.
                Colégio Brasileiro de Parasitologia Veterinária (Jaboticabal, SP, Brazil )
                0103-846X
                1984-2961
                March 2017
                : 26
                : 3
                : 359-365
                Affiliations
                [05] Botucatu orgnameUniversidade Estadual Paulista orgdiv1Instituto de Biociências Brazil
                [03] Belém Pará orgnameUniversidade Federal do Pará orgdiv1Instituto de Ciências Biológicas Brazil
                [01] Teresina Piauí orgnameUniversidade Federal do Piauí orgdiv1Centro de Ciências Agrárias Brazil
                [02] Rio de Janeiro orgnameFundação Oswaldo Cruz orgdiv1Instituto Oswaldo Cruz Brazil
                [04] Belém Pará orgnameUniversidade Federal Rural da Amazônia orgdiv1Instituto de Saúde e Produção Animal Brazil
                Article
                S1984-29612017000300359
                10.1590/s1984-29612017011
                5ab7ba6c-fd4f-4995-9f32-1eca30c8e507

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 08 December 2016
                : 22 February 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 15, Pages: 7
                Product

                SciELO Brazil


                Testudinídeos,Brasil,Nematode,strongylid,Chapiniella variabilis,Testudinid,Brazil,Nematoide,estrongilídeo

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