Comparison of Antimicrobial Resistance of Thermophilic <i>Campylobacter</i> Isolates from Conventional and Organic Turkey Meat in Germany

Tenhagen, Bernd‐Alois; Alt, K.; Käsbohrer, Annemarie; Kollas, Chris; Pfefferkorn, Beatrice; Naumann, Steffen; Wiehle, Lars; Thieck, Maja; Stingl, Kerstin

doi:10.1089/fpd.2020.2815

Cited by 8 publications

(12 citation statements)

References 16 publications

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“…Campylobacter jejuni isolated from conventionally produced chickens showed a significantly higher occurrence of resistance to the quinolones nalidixic acid and ciprofloxacin compared with C. jejuni isolated from organic chickens. This difference between isolates from the different production systems is in agreement with findings in other studies of organic and conventional poultry and poultry meat [24][25][26]. For C. coli, the number of isolates was too low to reach statistical power, but the two isolates in which antibiotic resistance was detected were from conventionally produced chickens.…”

Section: Discussionsupporting

confidence: 89%

Differences in Genotype and Antimicrobial Resistance between Campylobacter spp. Isolated from Organic and Conventionally Produced Chickens in Sweden

et al. 2021

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Antibiotic resistance is a major challenge worldwide and increased resistance to quinolones in Campylobacter is being reported. Analysis of antibiotic resistance was performed on 157 Campylobacter strains (123 C. jejuni and 34 C. coli) from conventional and organic chickens produced in Sweden. Susceptibility for tetracycline, ciprofloxacin, erythromycin, nalidixic acid, streptomycin, and gentamycin was determined by microdilution. All 77 isolates from organic chickens were sensitive to all antibiotics, except two C. jejuni that were resistant to tetracycline. Of the 80 isolates from conventional chickens, 22.5% of C. jejuni and 11.1% of C. coli were resistant to quinolones and 5.6% of C. jejuni were resistant to tetracycline. Whole-genome sequencing resulted in 50 different sequence types of C. jejuni and six of C. coli. Nine sequence types were found in both organic and conventional chickens. Two of these (ST-19 and ST-257) included isolates from conventional broilers with different resistance phenotypes to the remaining isolates from conventional and organic broilers. There are management differences between the production systems, such as feed, breed, use of coccidiostats, and access to outdoor area. It is unlikely that quinolone resistance has arisen due to use of antimicrobials, since fluoroquinolones are not permitted in Swedish broiler production.

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Section: Discussionsupporting

confidence: 89%

Differences in Genotype and Antimicrobial Resistance between Campylobacter spp. Isolated from Organic and Conventionally Produced Chickens in Sweden

et al. 2021

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“…The results provide a picture of the resistance situation of a representative set of E. coli from German poultry production. Although there are studies comparing resistance data of isolates from organic and conventional poultry production, only a few use data from national monitoring programs collecting representative data for an entire country [ 10 ].…”

Section: Discussionmentioning

confidence: 99%

“…Several studies address this issue, but most of them do not provide data representative of a country. In addition, for poultry, there are studies on broilers, but very few studies on turkeys [ 6 , 8 , 9 , 10 ]. Therefore, the objective of this study was, to look at the difference in the resistance between indicator Escherichia coli from broilers and turkeys from organic and conventional husbandry, collected as a part of the German national monitoring for zoonotic agents.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Antimicrobial Resistances in Escherichia coli from Conventionally and Organic Farmed Poultry from Germany

et al. 2022

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In this study, resistance rates in Escherichia coli from organic and conventional poultry in Germany were compared. Isolates were randomly collected from organic and conventional broiler and turkey flocks at the farm and from turkey meat at retail. Resistance testing was performed as prescribed by Commission implementing decision 2013/652/EU. Logistic regression analyses were performed for the resistance to the different antimicrobials. Overall, resistance rates for the antimicrobials tested were lower in E. coli from organic than from conventionally raised animals. In turkeys, the percentage of isolates susceptible to all antimicrobials tested from animals and meat was twice as high from organic than from conventional origin (~50% vs. <25%). In broilers, the percentage of susceptible isolates from organic farms was five times higher than from conventional farms (70.1% vs. 13.3%) and resistance to three or more classes of antimicrobials was 1.7- to 5.0-fold more common in isolates from conventional farms. The differences between organic and conventional farming were more pronounced in broilers than in turkeys. More studies on turkeys are needed to determine whether this difference is confirmed.

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“…Characteristics of all identified sources of evidence are presented in Tables 1-4. Of the 13 references included, six were from the USA, two each were from France and Germany and one each was from Canada, Great Britain and Italy [39][40][41][42][43][44][45][46][47][48][49][50][51]. Six references were published between 2016 and 2020, six were published between 2005 and 2016 and one was published in 1982.…”

Section: General Characteristics Of Sources Of Evidencementioning

confidence: 99%

A scoping review of factors potentially linked with antimicrobial-resistant bacteria from turkeys (iAM.AMR Project)

et al. 2022

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Antimicrobial resistance (AMR) is a complex problem that is a threat to global public health.Consumption of turkey meat may be an important source of foodborne exposure to resistant bacteria; recent outbreaks of multi-drug-resistant Salmonella Reading in Canada and the USA have implicated raw turkey products. To better understand the epidemiology of AMR in farmed turkey production, a scoping review was conducted. The objectives were to identify 1) modifiable factors potentially associated with antimicrobial-resistant Campylobacter, Enterococcus, Escherichia coli, and Salmonella enterica along the farm-to-fork pathway in turkeys, and 2) data gaps with respect to factors potentially associated with AMR and Canadian commercial turkey production. A comprehensive search of the peer-reviewed literature was conducted in 2019 and updated in 2021. Thirteen references were included, reporting 36 factors.Antimicrobial use factors and their potential associations with AMR were most frequently reported (n=15 factors; 42%), followed by biosecurity (n=11; 31%) and management practices (n=10; 28%). This review revealed important data gaps; no factors pertaining to Salmonella enterica or to stages other than the farm (e.g., abattoir, retail) were identified, and only one Canadian reference was identified. These findings will inform priorities for future research and surveillance regarding turkeys and AMR.

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Comparison of Antimicrobial Resistance of Thermophilic Campylobacter Isolates from Conventional and Organic Turkey Meat in Germany

Cited by 8 publications

References 16 publications

Differences in Genotype and Antimicrobial Resistance between Campylobacter spp. Isolated from Organic and Conventionally Produced Chickens in Sweden

Differences in Genotype and Antimicrobial Resistance between Campylobacter spp. Isolated from Organic and Conventionally Produced Chickens in Sweden

Comparison of Antimicrobial Resistances in Escherichia coli from Conventionally and Organic Farmed Poultry from Germany

A scoping review of factors potentially linked with antimicrobial-resistant bacteria from turkeys (iAM.AMR Project)

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