Survey of pathogens in threatened wild red-tailed Amazon parrot (Amazona brasiliensis) nestlings in Rasa Island, Brazil

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Frederico Fontanelli Vaz ; Patrícia Pereira Serafini ; Rosangela Locatelli-Dittrich ; Rafael Meurer ; Edison Luiz Durigon ; Jansen de Araújo ; Luciano Matsumiya Thomazelli ; Tatiana Ometto ; Elenise Angelotti Bastos Sipinski ; Rafael Meirelles Sezerban ; Maria Cecília Abbud ; Tânia Freitas Raso

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Microbiology; v. 48, n. 4, p. -, Dez. 2017.

Resumo

ABSTRACT The red-tailed Amazon parrot (Amazona brasiliensis) is a threatened species of psittacine bird that inhabit coastal regions of Brazil. In view of the threat of this species, the aim of this study was to perform a health evaluation in wild nestlings in Rasa Island, determining the prevalence of enterobacteria and infectious agents according to type of nest. Blood samples were collected from 64 birds and evaluated for antibodies of Chlamydia psittaci by commercial dot-blot ELISA. Cloacal and oropharyngeal swabs samples were collected from 23 birds from artificial wooden nests, 15 birds from PVC nests and 2 birds from natural nests for microbiological analysis. Swab samples were collected from 58 parrots for C. psittaci detection by PCR and from 50 nestlings for Avian Influenza, Newcastle Disease and West Nile viruses’ detection analysis by real-time RT-PCR. Ten bacterial genera and 17 species were identified, and the most prevalent were Escherichia coli and Klebsiella oxytoca. There was no influence of the type of nest in the nestlings’ microbiota. All samples tested by ELISA and PCR were negative. There is currently insufficient information available about the health of A. brasiliensis and data of this study provide a reference point for future evaluations and aid in conservation plans. (AU)

• Processo FAPESP: 09/05994-9 - Monitoramento do Vírus do Oeste do Nilo no Brasil
• Beneficiário: Tatiana Ometto de Araujo
• Linha de fomento: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 11/13821-7 - Eco-epidemiologia comparada do vírus da influenza aviária em aves migratórias no território brasileiro
• Beneficiário: Jansen de Araujo
• Linha de fomento: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 13/05485-2 - Estudo do vírus da Doença de Newcastle pelo método de RT-PCR em tempo real, em aves silvestres de diferentes regiões do Brasil e da Antártica
• Beneficiário: Luciano Matsumiya Thomazelli
• Linha de fomento: Auxílio à Pesquisa - Regular