Muscoid Diptera as potential vectors of bacterial agents on dairy farms in the northern region of Paraná, Brazil

Autores

  • Josaine Leila Almeida Universidade do Oeste Paulista
  • Rogerio Giuffrida Universidade do Oeste Paulista
  • Ricardo Augusto Pereira Andrade Universidade do Oeste Paulista
  • Marina Platzeck Chaves Universidade do Oeste Paulista

DOI:

https://doi.org/10.5433/1679-0359.2014v35n6p3127

Palavras-chave:

Synanthropic flies, Dairy cattle, And infectious agents.

Resumo

The aim of this study was to determine the isolation frequency and microbial sensitivity profiles of Escherichia coli, Salmonella spp., and Staphylococcus spp. isolated from synanthropic flies captured in entomological traps placed near the milking parlors of 30 dairy farms located in Northern Paraná, Brazil. In total, 192 flies were captured, and the isolation frequencies of muscids (21/30 = 70%) and califorids (27/30 = 90%) were significantly higher than that of sarcophagids (7/30 = 23.3%). Bacteriological tests on the internal contents and external surfaces of the flies showed that E. coli was present only in muscids (14.3%) and caliphorids (33.3%). Salmonella spp. was isolated from 9.5% of the muscids, 7.4% of the caliphorids, and 14.29% of the sarcophagids. Staphylococcus spp. was isolated from 28.5% of the muscids and 29.6% of the caliphorids. E. coli isolation was more frequent in flies captured on farms at which domestic chickens were housed near the milking parlors (p = 0.031) and which did not use sugarcane for animal feed (p = 0.042). Two out of 27 (7.4%) Staphylococcus spp. strains presented a phenotype of coagulase enzyme production. Ceftriaxone, ciprofloxacin, enrofloxacin, and gentamicin were the most effective antibiotics against E. coli and Salmonella spp. Tetracycline was the least effective antibiotic against the isolates. The Staphylococcus spp. strains isolated did not show the phenotype of oxacillin resistance. We conclude that regional flies are potential mechanical vectors of microbial agents able to cause enteritis in goats, mastitis in cows, and contamination of milk products for human consumption.

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Biografia do Autor

Josaine Leila Almeida, Universidade do Oeste Paulista

Discente do Programa de Mestrado em Ciência Animal, Universidade do Oeste Paulista, UNOESTE, Presidente Prudente, SP, Brasil.

Rogerio Giuffrida, Universidade do Oeste Paulista

Prof., do Programa de Mestrado em Ciência Animal, UNOESTE, Presidente Prudente, SP, Brasil.

Ricardo Augusto Pereira Andrade, Universidade do Oeste Paulista

Discente do Programa de Aprimoramento Profissional em Laboratório Veterinário, UNOESTE, Presidente Prudente, SP, Brasil.

Marina Platzeck Chaves, Universidade do Oeste Paulista

Discente do Curso de Medicina Veterinária, UNOESTE, Presidente Prudente, SP, Brasil.

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Publicado

2014-12-09

Como Citar

Almeida, J. L., Giuffrida, R., Andrade, R. A. P., & Chaves, M. P. (2014). Muscoid Diptera as potential vectors of bacterial agents on dairy farms in the northern region of Paraná, Brazil. Semina: Ciências Agrárias, 35(6), 3127–3138. https://doi.org/10.5433/1679-0359.2014v35n6p3127

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