ArticleCanadian journal of veterinary research = Revue canadienne de recherche veterinaire2008
Antimicrobial resistance in generic fecal Escherichia coli from 29 beef farms in Ontario.
Article in Canadian journal of veterinary research = Revue canadienne de recherche veterinaire, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
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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.
The trial behind it
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
12 citing papers in PubMed, 35 citations in OpenAlex.
- Frequency of Antimicrobial-Resistant FecalMicroorganisms · 2025Article
- Analysis of Antimicrobial Residues and Resistance Profiles ofVeterinary sciences · 2025Article
- Prevalence of Antibiotic-ResistantMicroorganisms · 2024Article
- Antimicrobial resistance in genericThe Canadian veterinary journal = La revue veterinaire canadienne · 2024Article
- A Scoping Review of Antimicrobial Usage and Antimicrobial Resistance in Beef Cow-Calf Herds in the United States and Canada.Antibiotics (Basel, Switzerland) · 2023Article
- First isolation of verocytotoxin-producingVeterinary world · 2022Article
- Antimicrobial Resistance Patterns ofAntibiotics (Basel, Switzerland) · 2021Article
- Article
- Antimicrobial resistance in fecalCanadian journal of veterinary research = Revue canadienne de recherche veterinaire · 2019Article
- Monte Carlo Simulations Suggest Current Chlortetracycline Drug-Residue Based Withdrawal Periods Would Not Control Antimicrobial Resistance Dissemination from Feedlot to Slaughterhouse.Frontiers in microbiology · 2017Article
- Characterization of the resistome in manure, soil and wastewater from dairy and beef production systems.Scientific reports · 2016Article
- Antimicrobial use on 24 beef farms in Ontario.Canadian journal of veterinary research = Revue canadienne de recherche veterinaire · 2008Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The occurrence of antimicrobial resistance in generic Escherichia coli can serve as an indicator of the pool of resistance genes potentially available for transfer to pathogenic organisms. This study was conducted on 29 volunteer beef farms in Ontario to describe the prevalence and patterns of antimicrobial resistance in E. coli, and to describe changes in the prevalence of resistance during the feedlot stage of production. From the pooled fecal samples on 28 of the 29 farms, 31% of isolates from feedlots (n = 993) and 12% of isolates from cow-calf farms (n = 807) were resistant to one or more of 16 antimicrobials tested. No isolates were resistant to ceftriaxone, ciprofloxacin, gentamicin, or nalidixic acid, and < 1% of the pooled isolates were resistant to ceftiofur. Two percent of both feedlot and cow-calf isolates were resistant to > or = 5 antimicrobials. Cow-calf farms were at significantly lower risk than feedlots for having E. coli isolates that were resistant to streptomycin, sulfamethoxazole, and tetracycline. On average, the prevalence of sulfamethoxazole resistant E. coli isolates was significantly higher in calves than in cows. No resistance was observed to ceftriaxone or ciprofloxacin among isolates (n = 1265) obtained from individually sampled feedlot animals on 2 farms. Less than 1% of these isolates were resistant to gentamicin, nalidixic acid, and ceftiofur. From the individually sampled feedlot animals, resistance to streptomycin (on 1 farm), sulfamethoxazole, and tetracycline increased significantly from arrival to mid-point during the feeding period, and these levels persisted until market-readiness.
Indexed as
Identifiers
18505200PMC2276896W1592333437What OpenQuestion holds
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.