Comparison of Salmonella isolation rates in different types of egg-layer hen houses in Chiba, Japan.
Avian Dis
; 45(1): 195-200, 2001.
Article
em En
| MEDLINE
| ID: mdl-11332483
ABSTRACT
This study investigated the differences in Salmonella isolation rates in environmental samples taken from several types of hen houses in Chiba, Japan. In addition, for the detailed epidemiologic survey, environmental samples, hens, and rodents were collected from Salmonella-contaminated windowless houses on three farms. As a result, Salmonella was isolated from four (80%) of five farms with windowless hen houses; Salmonella enteritidis was isolated from a single windowless house. In contrast, only one serotype of Salmonella was isolated from 1 (6.7%) of 15 farms with open hen houses. In the S. enteritidis-contaminated windowless hen house, the isolation rates of S. enteritidis as compared with the other serotypes were 90.9% of environments, 94.1% of hens, and 86.4% of roof rats (Rattus rattus) that resided in the environments. In reference to the phage type (PT) of these isolates, PT1 was detected in environments and roof rats, and PT9 was detected in both these samples and in hens. Thus, the Salmonella isolation rate in hen houses seems to be associated with whether the premises are windowless or open. Moreover, roof rats appear to be the most important vectors in the spread of S. enteritidis in the windowless hen house because the S. enteritidis PTs coincide with each other.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Contexto em Saúde:
3_ND
Problema de saúde:
3_neglected_diseases
/
3_zoonosis
Assunto principal:
Doenças das Aves Domésticas
/
Salmonella
/
Salmonelose Animal
/
Galinhas
/
Abrigo para Animais
Limite:
Animals
País/Região como assunto:
Asia
Idioma:
En
Revista:
Avian Dis
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Japão