808 research outputs found

    Análise da variabilidade genética em cervídeos através de ISSRS

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    Análise da variabilidade genética em cervídeos através de ISSRS

    Mycobacterium avium Complex in domestic and wild animals

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    Mycobacteria from the Mycobacterium avium complex (MAC) cause a variety of diseases including tuberculosis-like disease in humans and birds, disseminated infections in AIDS patients and otherwise immunocompromised patients, lymphadenitis in humans and mammals and paratuberculosis in ruminants. M. avium subsp. paratuberculosis (Map) is the etiologic agent of Johne´s disease in cattle and it has been identified in human patients with Crohn’s disease. The MAC comprises slow growing mycobacteria that are ubiquitous in the environment (soil and water), and have a wide source range, causing disease in various domestic and wild mammals and birds [1]. The aim of this study was to discuss the classification and biology, epidemiology, clinical signs, pathology, diagnostic techniques, and public health concerns in Mycobacterium avium complex in domestic and wild animals

    Lymphocyte population in the granulomatous lesions of wild-boars (Sus scrofa) suspected of tuberculosis

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    Só está disponível o resumoLymphocyte population in the granulomatous lesions of wild-boars (Sus scrofa) suspected of tuberculosis

    Epidemiological survey of dermatophytosis in meat rabbits with alopecia in Portugal

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    [EN] An epidemiological dermatophytosis survey was carried out in farmed rabbits with alopecia in Northern and Central Portugal. Between August and October 2008, samples from suspected clinical cases of alopecia in meat rabbits on industrial farms were collected and cultured by conventional methods. Effects on the prevalence of several variables, such as breed, age, month of sample collection, configuration of the lesions and presence of concomitant infections in the rabbitries were evaluated using a logistic regression model. The overall prevalence of dermatophytes species was 82.7% (95% CI: 80.1-85.3%). Two dermatophytes species were isolated: Trichophyton mentagrophytes (91.9%) and Microsporum canis (8.1%). Five variables were associated with dermatophyte isolation in univariate analysis. The multivariate logistic regression model identified configuration of lesions (OR=3.15; 95% CI: 1.39-7.15%) and the presence of concomitant infections on the farms (OR=2.71; 95% CI: 1.03-7.12%) as risk factors. Considering the paucity of epidemiological reports in this country, these results could make a useful contribution towards the diagnosis and prevention of rabbit dermatophytosis.Moreira, F.; Miranda, A.; Coelho, A.; Monteiro, J.; Coelho, A. (2012). Epidemiological survey of dermatophytosis in meat rabbits with alopecia in Portugal. World Rabbit Science. 20(1):43-48. doi:10.4995/wrs.2012.1032SWORD434820

    Importância dos Saca-Rabos (Herpestes Ichneumon) como Reservatório de Mycobacterium avium subsp. paratuberculosis. Deteção por Técnicas Tradicionais e Moleculares

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    Poster apresentado nas IV Jornadas de Genética, realizadas na UTAD, Vila Real, nos dias 1,2 e 3 de Março de 2012.Os saca-rabos (Herpestes ichneumon) também conhecidos por mangustos, são carnívoros diurnos selvagens que juntamente com a geneta (Genetta genetta) representam os exemplares da família Viverridae em Portugal. É uma espécie cinegética de caça menor que se alimenta de coelhos, roedores, aves, cobras, insectos e ovos. Neste estudo colheram-se amostras de 8 animais mortos por atropelamento e em ações de controlo de predadores, durante os anos de 2010 e 2011, nos concelhos de Idanha-a-Nova e Penamacor do distrito de Castelo Branco. As amostras colhidas foram fígado, pulmão, baço, intestino, rim, gânglio mesentérico, retrofaríngeo, mediastínico, amígdalas e fezes. As amostras foram submetidas à técnica de PCR e a cultura microbiológica em meios específicos. Em três saca-rabos (37,5%) detectou-se Mycobacterium avium subsp. paratuberculosis (Map) através da técnica de biologia molecular. Dois eram machos e um era fêmea. Map foi confirmado também em cultura nos dois machos. Sete saca-rabos (87,5%) apresentaram bactérias álcool-ácido resistentes compatíveis com Map em esfregaços de diferentes tecidos, quando corados pelo método de Ziehl-Neelsen. Estes resultados preliminares confirmam os saca-rabos como reservatório de Map no nosso país. Atualmente, estão a ser desenvolvidos mais estudos para a avaliação dos saca-rabos na dinâmica da infeção de Map em mamíferos selvagens

    Deteção molecular de Mycobacterium avium subsp. paratuberculosis em duas lontras (Lutra lutra, Linnaeus, 1758)

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    Deteção molecular de Mycobacterium avium subsp. paratuberculosis em duas lontras (Lutra lutra, Linnaeus, 1758)

    Pulmonary lesions consistent with disseminated adiaspiromycosis in egyptian mongooses (Herpestes ichneumon) from Portugal.

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    Pulmonary lesions consistent with disseminated adiaspiromycosis in egyptian mongooses (Herpestes ichneumon) from Portugal

    Serosurvey of Mycobacterium avium Complex in wild boars in Portugal

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    Serosurvey of Mycobacterium avium Complex in wild boars in Portugal
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