Colonization of chicken flocks by Campylobacter jejuni in multiple farms in Japan.
Poult Sci
; 92(2): 375-81, 2013 Feb.
Article
em En
| MEDLINE
| ID: mdl-23300304
ABSTRACT
Campylobacter jejuni was monitored in 4 chicken farms during the period 2003 to 2006 to elucidate the mechanisms of transmission. Three farms (1 to 3), located at least 14 km from each other, belonged to an integrated poultry company, which also provided the farms with day-old chicks from several hatcheries as well as chicken feed. Another farm (4), which belonged to a different company, was located 270 m from farm 1. A total of 206 C. jejuni isolates obtained from the 4 farms were classified into 10 flaA-based RFLP types. Identical RFLP types were found in isolates obtained from chickens originating from multiple hatcheries and reared in different chicken houses on individual farms. Flocks were colonized by strains with 1 or 2 RFLP types in each production cycle, sometimes differing between cycles. Identical RFLP types were found in isolates obtained from the environment around the chicken houses. Using multilocus sequence typing, strains with different RFLP types could be distinguished from each other. Identical RFLP and multilocus sequence typing profiles were found in isolates obtained from farms 1 and 4, and from farms 1 and 2. These results suggest that C. jejuni in these farms comes from common sources external to the farms, even if the farms belong to different companies and obtain chicks from different suppliers.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças das Aves Domésticas
/
Polimorfismo de Fragmento de Restrição
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Infecções por Campylobacter
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Galinhas
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Campylobacter jejuni
/
Flagelina
Limite:
Animals
País/Região como assunto:
Asia
Idioma:
En
Revista:
Poult Sci
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
Japão