Succession in the caecal microbiota of developing broilers colonised by extended-spectrum β-lactamase-producing Escherichia coli.

ABSTRACT:

Background

Broilers are among the most common and dense poultry production systems, where antimicrobials have been used extensively to promote animal health and performance. The continuous usage of antimicrobials has contributed to the appearance of resistant bacteria, such as extended-spectrum β-lactamase-producing Escherichia coli (ESBL-Ec). Here, we studied the ESBL-Ec prevalence and successional dynamics of the caecal microbiota of developing broilers in a commercial flock during their production life cycle (0-35 days). Broilers were categorised as ESBL-Ec colonised (ESBL-Ec⁺) or ESBL-Ec non-colonised (ESBL-Ec^-) by selective culturing. Using 16S rRNA gene sequencing, we i. compared the richness, evenness and composition of the caecal microbiota of both bro

SUBMITTER: Cardenas-Rey I 

PROVIDER: S-EPMC9389726 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature