Impact of short-term storage on the quantity of extended-spectrum beta-lactamase-producing Escherichia coli in broiler litter under practical conditions.
E. coli
ESBL
antibiotic resistance
broiler litter
environment
Journal
Poultry science
ISSN: 1525-3171
Titre abrégé: Poult Sci
Pays: England
ID NLM: 0401150
Informations de publication
Date de publication:
Apr 2020
Apr 2020
Historique:
received:
30
09
2019
revised:
14
11
2019
accepted:
14
11
2019
entrez:
4
4
2020
pubmed:
4
4
2020
medline:
18
11
2020
Statut:
ppublish
Résumé
Applying broiler litter containing extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli (E. coli) to arable land poses a potential risk for humans to get colonized by contact with contaminated soil or vegetables. Therefore, an inactivation of these bacteria before land application of litter is crucial. We performed 2 short-term litter storage trials (one in summer and winter, respectively), each covering a time span of 5 D to investigate the effectiveness of this method for inactivation of ESBL-producing E. coli in chicken litter. Surface and deep litter samples were taken from a stacked, ESBL-positive chicken litter heap in triplicates in close sampling intervals at the beginning and daily for the last 3 D of the experiments. Samples were analyzed quantitatively and qualitatively for ESBL-producing E. coli, total E. coli, and enterococci. Selected isolates were further characterized by whole-genome sequencing (WGS). In the depth of the heap ESBL-producing E. coli were detected quantitatively until 72 h and qualitatively until the end of the trial in winter. In summer detection was possible quantitatively up to 36 h and qualitatively until 72 h. For surface litter samples a qualitative detection of ESBL-producing E. coli was possible in all samples taken in both trials. In the deep samples a significant decrease in the bacterial counts of over 2 Log
Identifiants
pubmed: 32241498
pii: S0032-5791(19)57840-3
doi: 10.1016/j.psj.2019.11.043
pmc: PMC7587761
pii:
doi:
Substances chimiques
Bacterial Proteins
0
Manure
0
beta-Lactamases
EC 3.5.2.6
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
2125-2135Informations de copyright
Copyright © 2019. Published by Elsevier Inc.
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