ArticleEnvironmental microbiology2008
Campylobacter infection of broiler chickens in a free-range environment.
Article in Environmental microbiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
46 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Biosecurity-based interventions and strategies to reduce Campylobacter spp. on poultry farms.Applied and environmental microbiology · 2011Pooled it
- AcceleratingProceedings of the National Academy of Sciences of the United States of America · 2026Article
- Competitive exclusion modulates broiler microbiota structure and microbial interaction networks.Poultry science · 2026Article
- Which biosecurity measures are specific to free-range poultry? Insights from a scoping review.Veterinary research · 2026Article
- Effect of feeding biochar, oat hulls, yeast fermentate, and organic acids on reduction of Campylobacter in free-range broilers from hatching to slaughter.Poultry science · 2025Article
- Genomic tailoring of autogenous poultry vaccines to reduce Campylobacter from farm to fork.NPJ vaccines · 2024Article
- Genotypic characterization, antimicrobial susceptibility and virulence determinants ofFrontiers in microbiology · 2023Article
- Emerging patterns of fluoroquinolone resistance inMicrobial genomics · 2022Article
- Adaptability Challenges for Organic Broiler Chickens: A Commentary.Animals : an open access journal from MDPI · 2022Article
- Isolation and characterization of thermophilicIranian journal of veterinary research · 2022Article
- Can good broiler flock welfare prevent colonization by Campylobacter?Poultry science · 2021Article
- Disinfectant and antimicrobial susceptibility studies of the foodborne pathogen Campylobacter jejuni isolated from the litter of broiler chicken houses.Poultry science · 2021Article
- The Fate of Foodborne Pathogens in Manure Treated Soil.Frontiers in microbiology · 2021Review
- Population Biology and Comparative Genomics of Campylobacter Species.Current topics in microbiology and immunology · 2021Review
- A Mathematical Modeling Approach to Uncover Factors Influencing the Spread ofFrontiers in microbiology · 2020Article
- Campylobacter and Arcobacter species in food-producing animals: prevalence at primary production and during slaughter.World journal of microbiology & biotechnology · 2019Review
- Parallel sequencing of porA reveals a complex pattern of Campylobacter genotypes that differs between broiler and broiler breeder chickens.Scientific reports · 2019Article
- Prevalence of Genetic Determinants and Phenotypic Resistance to Ciprofloxacin inFrontiers in microbiology · 2018Article
- The Potential of Isolation Source to Predict Colonization in Avian Hosts: A Case Study inFrontiers in microbiology · 2018Article
- Local genes for local bacteria: Evidence of allopatry in the genomes of transatlantic Campylobacter populations.Molecular ecology · 2017Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
Campylobacter jejuni is the most common cause of bacterial gastroenteritis worldwide, with contaminated chicken meat considered to represent a major source of human infection. Biosecurity measures can reduce C. jejuni shedding rates of housed chickens, but the increasing popularity of free-range and organic meat raises the question of whether the welfare benefits of extensive production are compatible with food safety. The widespread assumption that the free-range environment contaminates extensively reared chickens has not been rigorously tested. A year-long survey of 64 free-range broiler flocks reared on two sites in Oxfordshire, UK, combining high-resolution genotyping with behavioural and environmental observations revealed: (i) no evidence of colonization of succeeding flocks by the C. jejuni genotypes shed by preceding flocks, (ii) a high degree of similarity between C. jejuni genotypes from both farm sites, (iii) no association of ranging behaviour with likelihood of Campylobacter shedding, and (iv) higher genetic differentiation between C. jejuni populations from chickens and wild birds on the same farm than between the chicken samples, human disease isolates from the same region and national samples of C. jejuni from chicken meat.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.