Factors for Occurrence of Extended-Spectrum β-Lactamase-Producing Escherichia coli in Broilers

Autor:	Norio Ohashi, Midori Hiroi, Kanji Sugiyama, Ryoichi Kubo, Shigeyuki Matsui, Takashi Kanda, Natsuko Iida, Yukiko Hara-Kudo, Yoshihiro Noda
Rok vydání:	2012
Předmět:	Veterinary medicine General Veterinary medicine.drug_class animal diseases Antibiotics Cephalosporin Broiler biochemical phenomena metabolism and nutrition Biology bacterial infections and mycoses medicine.disease_cause polycyclic compounds medicine bacteria Flock Escherichia coli Feces
Zdroj:	Journal of Veterinary Medical Science. 74:1635-1637
ISSN:	1347-7439 0916-7250
Popis:	To clarify the factors for occurrence of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli in broilers, two flocks (1 day of age) fed a diet with or without antibiotics were kept in a broiler house sanitized with disinfectants. ESBL-producing E. coli, however, was detected at a concentration of over 10(6) CFU/g of feces at 9 days of age to 49 days of age in both broiler flocks. Therefore, this indicated that the antibiotics other than cephalosporins used in this study had no effect due to co-selection on the numbers of ESBL-producing E. coli in broiler feces during this period. When a flock was kept with diet containing antibiotics for 49 days in a laboratory animal room, no ESBL-producing E. coli was detected in the flock. These results suggest that the occurrence of ESBL-producing E. coli may not be related to feeding with antibiotics and that the contamination of broiler houses with ESBL-producing E. coli might be an important factor.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2feba64ce5420a53ca5f0c7d4175738f https://doi.org/10.1292/jvms.11-0479 Zobrazit plný text záznamu