Tuberculose Em Caprinos Do Semiárido Brasileiro

Pignata, Walkyria Antunes; Alves, Clebert José; Azevêdo, Sérgio Santos de; Pinheiro, Sônia Regina; Vasconcellos, Sílvio Arruda; Almeida, Carlos Frederico Meschini; Dantas, Antônio Flávio Medeiros; Remígio, F. R.

doi:10.1590/1808-1657v77p3392010

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…The positivity found in property 01 is assigned to the size of goat and cattle herds, which provides greater interspecies contact, implying a higher probability of goat tuberculosis occurrence. Since the practice of cattle and goats grazing together implies an increase of disease transmission risk, where the infected cattle are the main host of the infection, excreting microorganisms in-breath, feces, milk, urine, vaginal and uterine secretions, and festering lymph nodes (HIGINO et al, 2011;PIGNATA et al, 2010). Besides the size of herds, the property where the positive cases occurred has an extensive territorial area, allowing goats to walk long distances, maintaining contact with wild species, potential reservoirs for microorganisms of the M. tuberculosis complex.…”

Section: Resultsmentioning

confidence: 99%

Diagnosis of goat tuberculosis using tuberculinization and molecular techniques

Lopes

Fernandes

Rosa³

et al. 2022

Arq. Inst. Biol.

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Tuberculosis is an infectious, chronic, and worldwide disease. It has been known since the beginning of humanity and still negatively influences public health and livestock, especially, in Brazil, in the northeast. Etiologic agents are the mycobacteria of the Mycobacterium tuberculosis complex, which is the most important in mammals' involvement. The state of Bahia has 68.7% of its territory located in the semiarid region and holds the largest goat herd in the country. Goat breeding is a social and economic activity that adds value to this region. Up to the present, data on goat tuberculosis is unknown in this state. Thus, this study seeks data on tuberculosis prevalence in goats in a semiarid region of Bahia by using the comparative tuberculin test and multiplex polymerase chain reaction (PCR). A total of 600 adult animals of both sexes were evaluated. A prevalence of 0.33% (2/600) and 33.33% (1/3) properties were found for positive animals. Each assessed property had a questionnaire to analyze the epidemiological data management and relevant aspects for the disease occurrence. To confirm the positive tuberculin test results, PCR was used to detect and identify the pathogenic mycobacteria involved in the infection. It is concluded that most of the properties performing goat breeding in the region show low technification levels and promote farming between different species. Low prevalence of the disease alerts preventive measures to avoid major proportion situations that could influence the goat breeding in the state.

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Section: Resultsmentioning

confidence: 99%

Diagnosis of goat tuberculosis using tuberculinization and molecular techniques

Lopes

Fernandes

Rosa³

et al. 2022

Arq. Inst. Biol.

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Situação da tuberculose em ovinos consorciados com bovinos leiteiros na região sudoeste maranhense

Barros¹,

Castro

Chaves³

et al. 2017

Arq. Inst. Biol.

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ABSTRACT:In order to know the situation of ovine tuberculosis in Maranhão, Brazil, we evaluated 343 sheep in the southwest region of the state, of both sexes (247 females and 96 males), aged over six months, through the comparative cervical test (TCC), with tuberculin inoculation in the right cervical region. Cranially, avian purified protein derivate (PPD) was injected; and caudally, beef PPD was injected, in individual doses of 0.1 mL. All animals were negative for tuberculosis; however, 65 sheep had higher reactions to bovine tuberculin than to the avian one. To investigate the possibility of low awareness or anergy in animals with advanced tuberculosis, one cachectic sheep was necropsied, aged four years, with negative results for TCC, but with reaction to avian tuberculin and enlarged hardened lymph nodes. The results indicated C. pseudotuberculosis, Actinomyces pyogenes, Staphylococcus aureus and Mycobacterium sp infections. Culture and isolation resulted in Pseudomonas aeruginosa and Bacillus sp. No bacterial structures compatible with acid-fast bacteria were found. The results confirmed the absence of animals reactive to M. bovis, assuming no tuberculosis in sheep in the study area.KEYWORDS: bacterioscopy; diagnosis; histopatologic; cervival comparative test; tuberculin. RESUMO:Objetivando conhecer a situação da tuberculose ovina no Maranhão, avaliaram-se 343 ovinos da região sudoeste do estado, 247 fêmeas e 96 machos, com idade acima de 6 meses, por meio do teste cervical comparativo (TCC), com inoculação de tuberculinas na região cervical direita. Cranialmente, injetou-se derivado proteico purificado (PPD) aviário; e caudalmente, PPD bovino, em doses individuais de 0,1 mL. Todos os animais apresentaram resultado negativo para tuberculose, entretanto, 65 ovinos apresentaram reação à tuberculina bovina superior à aviária. Para investigar a possibilidade de baixa sensibilização ou anergia em animais com tuberculose avançada, foi necropsiado um ovino caquético, idade acima de quatro anos, com resultado negativo ao TCC, porém, com reação à tuberculina aviária e linfonodos aumentados com consistência endurecida.

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Avaliação da região corpórea e dose da tuberculina no diagnóstico imunoalérgico em ovinos (Ovis aries) experimentalmente sensibilizados com inóculo inativado de Mycobacterium bovis

et al. 2012

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Avaliação da região corpórea e dose da tuberculina no diagnóstico imunoalérgico em ovinos (Ovis aries) experimentalmente sensibilizados com inóculo inativado de Mycobacterium bovis. O objetivo foi a investigação do local de aplicação do derivado proteico purificado (PPD) bovino, empregado no teste imunoalérgico da tuberculose, em 15 ovinos (Ovis aries) experimentalmente sensibilizados com Mycobacterium bovis AN 5 . A partir da melhor resposta obtida na fase de identificação da região corpórea, avaliou-se a dose de PPD bovino a ser aplicada. Decorridos 60 dias da sensibilização, o PPD bovino foi aplicado em cinco distintas regiões corpóreas (cervical média, torácica dorsal, abdominal dorsal, prega da cauda e face medial proximal do membro pélvico -face interna da coxa) com a mensuração da espessura da dobra de pele e da reação através de cutímetro de mola, nos momentos antes (0h) e após aplicação (12h, 24h, 48h, 72h e 96h). A análise dos resultados obtidos foi significante, em ordem decrescente, para as regiões: torácica dorsal, cervical média e abdominal dorsal às 48 e 72h após aplicação do PPD bovino. Elegeu-se a região torácica dorsal como melhor local de aplicação. Recomenda-se que a leitura da reação tuberculínica em ovinos deve ser efetuada às 72h da aplicação do PPD, utilizando-se a dose de 0,1 mL. PALAVRAS-CHAVE: Tuberculose, PPD, ovino, alergoreação, zoonose. ABSTRACT EVALUATION OF THE BODY REGION AND TUBERCULIN DOSE IN THE DIAGNOSIS OF THE ALLERGIC RESPONSE IN SHEEP (OVIS ARIES) EXPERIMENTALLY SENSITIZED WITH INACTIVATED INOCULUM FROM Mycobacterium BOVIS.This study was aimed to investigate the best area for application of bovine purified protein derivative (PPD) for the imunoallergic test for tuberculosis, in 15 sheep (Ovis aries) experimentally sensitized with Mycobacterium bovis AN 5 . Based on the best response obtained in the previous phase, the dose of bovine PPD to be applied was evaluated. After 60 days of sensitization, the bovine PPD was applied at 5 distinct body regions to measure the skinfold thickness and reaction, at moments before (0h) and after injection (12h, 24h, 48h, 72h and 96h), with skinfold calipers. Statistical analysis showed significance for the best site of application: the dorsal thoracic region, followed by the middle cervical and dorsal abdominal, at 48 and 72 hours after injection of bovine PPD. The thoracic region was chosen as the best site for application. It is recommended that the reading of the tuberculin response in sheep should be made 72h after the PPD application, using a dose of 0.1 mL.

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Tuberculose Em Caprinos Do Semiárido Brasileiro

Cited by 3 publications

References 7 publications

Diagnosis of goat tuberculosis using tuberculinization and molecular techniques

Diagnosis of goat tuberculosis using tuberculinization and molecular techniques

Situação da tuberculose em ovinos consorciados com bovinos leiteiros na região sudoeste maranhense

Avaliação da região corpórea e dose da tuberculina no diagnóstico imunoalérgico em ovinos (Ovis aries) experimentalmente sensibilizados com inóculo inativado de Mycobacterium bovis

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