ArticleFrontiers in microbiology2023
The abundance and diversity of antibiotic resistance genes in layer chicken ceca is associated with farm enviroment.
Article in Frontiers in microbiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 10 citations in OpenAlex.
- Insights into antibiotic resistomes from gut meta-genome-assembled genomes of the free-range chickens.Veterinary and animal science · 2026Article
- Novel Insights into Metagenomic-Assembled Genomes from Layer Chicken Housing Environment.International journal of molecular sciences · 2026Article
- Mechanisms of probiotic action in poultry gut: Colonization resistance, bioactive metabolites, quorum sensing activity, and immunomodulation.Poultry science · 2026Review
- The gut resistome in poultry production: microbial ecology, antibiotic use, and sustainable control approaches.Frontiers in microbiology · 2026Review
- Animal type outweighs growth stage in shaping the active antibiotic resistome in livestock manure.Frontiers in microbiology · 2026Article
- Multidimensional regulatory mechanisms of chicken immunity: focus on viral infection, intestinal microbiota and heat stress.Frontiers in veterinary science · 2026Review
- Prevalence and genetic characteristics of Campylobacter jejuni from laying-hens in Hubei Province, China.BMC veterinary research · 2025Article
- Article
- Predisposition factors and control strategies of avian pathogenicFrontiers in veterinary science · 2024Review
- Microbiome Changes in Layer Pullets Reared in Floor Pens along the Growth Period.Life (Basel, Switzerland) · 2023Article
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Industrialized layer chicken feedlots harbor complex environmental microbial communities that affect the enrichment and exchange of gut bacteria and antibiotic resistance genes (ARGs). However, the contribution of different environmental sources to the gut ARGs of layer chickens is not clear. Here, layer chicken gut and environmental samples (air, water, feed, cage, feather, maternal hen feces, uropygial glands) were collected during the early 3 month period before the laying of eggs, and the source and characteristics of the gut microorganisms and ARGs were analyzed by performing 16S rRNA and metagenomic sequencing. The results showed that the abundances of Bacteroidetes and Actinobacteria in cecum of layer chickens gradually increased, while that of Proteobacteria decreased with age, and the number and relative abundance of ARGs decreased significantly with age. On day 5, 57% of the layer chicken cecal ARGs were from feather samples, and 30% were from cage samples. Subsequently, the contribution of cage ARGs became progressively more prominent over time. At days 30 and 57, the contribution of cage ARGs to the chick cecal ARGs reached 63.3 and 69.5%, respectively. The bacterial community composition (especially the abundances of
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