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Revista Brasileira de Parasitologia Veterinária

On-line version ISSN 1984-2961


CASTRO, Bruno G. de; SOUZA, Miliane M.S. de  and  BITTENCOURT, Avelino J.. Aerobic bacterial microbiota in stomoxys calcitrans: preliminary studies in Brazil. Rev. Bras. Parasitol. Vet. [online]. 2007, vol.16, n.4, pp.193-197. ISSN 1984-2961.

The stable fly, Stomoxys calcitrans, has a great importance in medical and veterinary health due to its feeding and reproductive habits, which can disseminate some pathogenic agents among hosts even at long distances. This study aimed to describe, for the first time in Brazil, the bacterial microbiota in segments of the stable fly. Bacterial species were isolated from three different segments (cuticle, mouth parts and abdominal alimentary tract) of the stable fly. Twenty dairy farms were visited in four municipalities: Barra Mansa, Quatis, Resende and Rio Claro in the State of Rio de Janeiro in order to collect 20 flies in each site. Dissection of the flies and procedures of isolation and identification of bacterial species were performed. A total of 161 colonies of 33 distinct species were isolated, such as Escherichia coli, Staphylococcus aureus, and S. intermedius. Stomoxys calcitrans may harbor bacterial agents on their cuticle, mouth parts and abdominal alimentary tract and these bacteria may be pathogenic to their hosts.

Keywords : stable fly; bacterial microbiota; cuticle; mouth parts; abdominal alimentary tract.

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