Monitoring of layer feed and eggs for Salmonella in eastern Japan between 1993 and 1998

In order to investigate contamination of chicken farms with Salmonella, feed and eggs were sampled from 16 commercial layer farms in eastern Japan between 1993 and 1998 and cultured for salmonellae. Salmonella enterica subsp. enterica isolates belonging to 19 serovars were obtained from the feed. Si...

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Bibliographic Details
Published in:Journal of food protection 2001-05, Vol.64 (5), p.734-737
Main Authors: SHIROTA, Kazutoshi, KATOH, Hiromitsu, MURASE, Toshiyuki, ITO, Toshihiro, OTSUKI, Koichi
Format: Article
Language:English
Subjects:
Animal Feed - microbiology
Animal productions
Animals
Biological and medical sciences
Chickens
Eggs - microbiology
Electrophoresis, Gel, Pulsed-Field
Female
Food industries
Food microbiology
Fundamental and applied biological sciences. Psychology
Japan
Salmonella - classification
Salmonella - isolation & purification
Serotyping
Terrestrial animal productions
Vertebrates
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Summary:In order to investigate contamination of chicken farms with Salmonella, feed and eggs were sampled from 16 commercial layer farms in eastern Japan between 1993 and 1998 and cultured for salmonellae. Salmonella enterica subsp. enterica isolates belonging to 19 serovars were obtained from the feed. Six of the 19 serotypes, including Salmonella serovar Enteritidis, were observed in isolates recovered from the eggs. Salmonella serovar Enteritidis strains obtained from a feed sample and egg contents in a layer farm showed pulsed-field gel electrophoresis patterns that were genetically related and belonged to a single phage type, suggesting that the contamination of the farms was linked to the occurrence of salmonellae in feed.
ISSN:0362-028X
1944-9097
DOI:10.4315/0362-028x-64.5.734