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1 December 2008 Occurrence and Characterization of Campylobacter in the Brazilian Production and Processing of Broilers
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Abstract

Twenty-two commercial broiler flocks and their carcasses, totaling 546 samples (450 collected from a poultry farm and 96 from a slaughterhouse), were surveyed for the presence of Campylobacter. The positive results for Campylobacter among the analyzed samples were homogeneous, yielding 81.8% for cecal droppings, 80.9% for feces, and 80.4% for cloacal swabs. Pre-enrichment and direct plating showed that 77.85% and 81.8% of cloacal swabs, respectively, were positive for Campylobacter compared to 99.0% and 97.9% of carcasses testing positive with the pre-enrichment and direct plating methods. The Campylobacter count averaged 7.0 log10 colony-forming units (CFU)/g in cecal droppings, 5.15 log10 CFU/carcass after defeathering, and 4.24 log10 CFU/carcass after chilling. The samples were identified by the API Campy system as Campylobacter jejuni subsp. jejuni (68.8%), Campylobacter coli (8.3%), Campylobacter jejuni subsp. doylei (6.3%), Campylobacter upsaliensis (4.2%), and Campylobacter fetus subsp. fetus (2.1%). The analyzed broiler flocks were positive for Campylobacter in 81.8% of the cases, thus characterizing the occurrence of this pathogen in a broiler-producing region in southern Brazil. These results highlight the importance of programs targeted at the reduction of Campylobacter in poultry products, in order to minimize the risks for consumers.

Abbreviations: CFU = colony-forming units; mCCDA = modified charcoal cefoperazone deoxycholate agar; TTC = triphenyl tetrazolium chloride

Nota de Investigación—Ocurrencia y caracterización de Campylobacter en pollos de engorde procesados y en producción.

Para evaluar la presencia de Campylobacter, se realizó una encuesta en 22 lotes comerciales de pollos de engorde y sus canales, con un total de 546 muestras de las cuales 450 fueron tomadas de una granja de pollos y 96 de la planta de proceso. Entre las muestras analizadas, los resultados positivos para Campylobacter fueron homogéneos, encontrándose un 81.8% en las heces cecales, 80.9% en las heces y 80.4% en los hisopos cloacales. Los resultados obtenidos mediante pre-enriquecimiento y siembra directa mostraron una positividad para el Campylobacter del 77.85% y 81.8%, respectivamente, para los hisopos cloacales, comparado con el 99.0% y 97.9% de positividad para las canales. Los promedios de los recuentos de Campylobacter fueron 7.0 log10 unidades formadoras de colonia (UFC) por gramo en las heces cecales, 5.15 log10 UFC en las canales después del desplume, y 4.24 log10 UFC para las canales después del enfriamiento. Mediante el sistema API Campy, las muestras fueron identificadas como Campylobacter jejuni subsp. jejuni (68.8%), Campylobacter coli (8.3%), Campylobacter jejuni subsp. doylei (6.3%), Campylobacter upsaliensis (4.2%), y Campylobacter fetus subsp. fetus (2.1%). Los lotes de pollos analizados fueron positivos a

S. L. Kuana, L. R. Santos, L. B. Rodrigues, A. Borsoi, H. L. S. Moraes, C. T. P. Salle, and V. P. Nascimento "Occurrence and Characterization of Campylobacter in the Brazilian Production and Processing of Broilers," Avian Diseases 52(4), 680-684, (1 December 2008). https://doi.org/10.1637/8296-032608-Reg.1
Received: 28 March 2008; Accepted: 1 July 2008; Published: 1 December 2008
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