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Population Dynamics of Thermotolerant Campylobacter in Broilers Reared on Reused Litter.
Rauber Würfel, Simone de Fátima; Voss-Rech, Daiane; Dos Santos Pozza, Jenifer; Coldebella, Arlei; Santiago Silva, Virgínia; Vaz, Clarissa Silveira Luiz.
Afiliação
  • Rauber Würfel SF; Departamento de Ciência e Tecnologia Agroindustrial, Universidade Federal de Pelotas, Capão do Leão, Brazil.
  • Voss-Rech D; Embrapa Suínos e Aves, Concórdia, Brazil.
  • Dos Santos Pozza J; Complexo de Desenvolvimento tecnológico, Fundação Universidade do Contestado, Concórdia, Brazil.
  • Coldebella A; Embrapa Suínos e Aves, Concórdia, Brazil.
  • Santiago Silva V; Embrapa Suínos e Aves, Concórdia, Brazil.
  • Vaz CSL; Embrapa Suínos e Aves, Concórdia, Brazil.
Foodborne Pathog Dis ; 16(11): 738-743, 2019 11.
Article em En | MEDLINE | ID: mdl-31211917
A study using sentinel broiler chickens was performed to address Campylobacter persistence in litter that was reused for successive flocks. Cloacal swabs, litter, drag swabs, darkling beetles, feed, and drinking water were weekly sampled and analyzed by standard microbiological procedures. Thermotolerant Campylobacter isolated strains were confirmed by polymerase chain reaction and subtyped by pulsed-field gel electrophoresis analysis. Campylobacter was not detected in samples collected immediately after downtime between broiler flocks. However, Campylobacter-positive samples were first detected at 21 d. After Campylobacter was initially isolated from the cloacal swabs, reused litter, drag swabs, or darkling beetles, these samples remained Campylobacter positive in the following weeks until the end of the rearing period. Campylobacter-positive cloacal swabs obtained from sentinel broilers ranged from 97.3% to 100% at 42 d. All isolated strains were identified as Campylobacter jejuni. Among the subtypes identified, an indistinguishable C. jejuni strain was predominant in sentinel broilers and was also detected in the other environmental samples analyzed, suggesting a common and persistent contamination source within the flocks. Sentinel broilers may have contributed to amplify the Campylobacter level, maintaining flock and broiler house contamination until the end of the production cycle.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Campylobacter / Galinhas / Termotolerância / Abrigo para Animais / Criação de Animais Domésticos Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Foodborne Pathog Dis Assunto da revista: CIENCIAS DA NUTRICAO / MICROBIOLOGIA / PARASITOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
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XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Campylobacter / Galinhas / Termotolerância / Abrigo para Animais / Criação de Animais Domésticos Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Foodborne Pathog Dis Assunto da revista: CIENCIAS DA NUTRICAO / MICROBIOLOGIA / PARASITOLOGIA Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos