Farm specific risk factors for Campylobacter colonisation in Danish and Norwegian broilers

Høg, Birgitte Borck; Sommer, Helle Mølgaard; Larsen, Lars Stehr; Sørensen, Anna Irene Vedel; David, Bruce; Hofshagen, Merete; Rosenquist, Hanne

doi:10.1016/j.prevetmed.2016.04.002

Cited by 41 publications

(29 citation statements)

References 36 publications

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“…The presence of boot baths at the entrance of the broiler house is considered a risk factor (Borck Hog et al, 2016) and for these to be efficient, high maintenance with disinfection replenishment being done at regular intervals. If not well-maintained the footbaths will increase the risk rather than act as a defensive barrier.…”

Section: Biosecuritymentioning

confidence: 99%

“…Based on a small data set, the study showed that keeping the broiler house empty for less than 9 days would increase the risk for Campylobacter spp. Also, if the empty time is extended the risk of introducing Campylobacter into the houses is kept low only if the biosecurity and hygiene levels are maintained optimal (Borck Hog et al, 2016). It is well-known that an external reservoir can host multiple Campylobacter strains, during the empty period, which will allow colonization of the new flock (Ellis-Iversen et al, 2012).…”

Section: Cleaning and Disinfectionmentioning

confidence: 99%

“…Campylobacter may be introduced into the reservoirs of drinker systems with cups and bells via colonized birds or their droppings, allowing the water to become a dissemination vehicle (Borck Hog et al, 2016). Using municipal sources of water was deemed to be the best as opposed to using wells or boreholes.…”

Section: Watermentioning

confidence: 99%

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A Review of the Effect of Management Practices on Campylobacter Prevalence in Poultry Farms

et al. 2018

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Poultry is frequently associated with campylobacteriosis in humans, with Campylobacter jejuni being the most usual Campylobacter associated with disease in humans. Far-reaching research on Campylobacter was undertaken over the past two decades. This has resulted in interventions being put in place on farms and in processing plants. Despite these interventions, coupled with increased media coverage to educate the consumer on Campylobacter prevalence and campylobacteriosis, human health incidents are still high. Recent research is now shifting toward further understanding of the microorganisms to challenge interventions in place and to look at further and more relevant interventions for the reduction in human incidents. Farm practices play a key role in the control of colonization within poultry houses and among flocks. Prevalence at the farm level can be up to 100% and time of colonization may vary widely between flocks. Considerable research has been performed to understand how farm management and animal health practices can affect colonization on farms. This review will focus on farm practices to date as a baseline for future interventions as the microorganism becomes better understood. Further research is required to understand the chicken microbiome and factors influencing vertical transmission. The persistence of Campylobacter in animal and environmental reservoirs within and around farms requires further investigation to tailor farm practices toward preventing such reservoirs.IMPLICATIONS This review gives an overview of farm practices and their effect on Campylobacter prevalence in poultry. Various elements of farm practices have been captured in this review.

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Section: Biosecuritymentioning

confidence: 99%

Section: Cleaning and Disinfectionmentioning

confidence: 99%

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A Review of the Effect of Management Practices on Campylobacter Prevalence in Poultry Farms

et al. 2018

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“…raw milk and pets, but broilers and broiler meat are the most important. [13][14][15][16] Campylobacteriosis in urban areas has been associated with broilers, but less so in the countryside [8]. The European Food Safety Authority estimated that chicken meat consumption accounts for 20%-30% of campylobacteriosis in the EU, with 50%-80% of cases linked to the chicken reservoir as a whole.…”

Section: Poultry and Campylobactermentioning

confidence: 99%

“…6 In order to implement effective interventions that reduce the probability of Campylobacter colonisation of broiler flocks, it is essential to understand the risk factors involved. 16 All of these different phases have a role in the transmission of Campylobacter from farm to fork. Production chain conditions vary between countries, and this is also reflected in the annual number of Campylobacter-positive chicken flocks.…”

mentioning

confidence: 99%

The Relationship between Human Campylobacteriosis and Broilers

Snelling¹

2016

JBMOA

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Genetic diversity, antimicrobial resistance, and virulence genes of thermophilic Campylobacter isolated from broiler production chain

et al. 2020

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The aim of this study was to investigate the prevalence of thermophilic Campylobacter in the broiler production chain of southern Brazil, by evaluating broiler farms and slaughter line samples, and to determine the genetic diversity, antimicrobial resistance, and virulence genes of the isolates. Of the 140 samples investigated in this study, 75 (53.6%) were positive for thermophilic Campylobacter, and all isolates were identified by phenotypic and molecular tests as C. jejuni. The resistance to nalidixic acid was the most common (74%), followed by resistance to enrofloxacin (67.3%) and ciprofloxacin (37.1%). However, there was no resistance to the macrolides tested which are recommended for the treatment of human campylobacteriosis. The PFGE showed that the isolates were grouped in eight macrorestriction patterns (P1 to P8). A representative isolate of each macrorestriction pattern was investigated for the presence of virulence genes and all isolates carried the cadF, ciaB, cdtA, cdtB, cdtC, and flaA genes. The dnaJ gene was detected in 87.5% (7/8) of the isolates. The flhA and racR genes were detected in 75% (6/8), while the pldA gene was present in 62.5% (5/8) and the wlaN gene in 25% (2/8). The presence of C. jejuni in broiler farms and in the slaughterhouse is a hazard to consumer given that this pathogen can be maintained throughout the broiler production chain and contaminates the final product. Moreover, the presence of the major virulence genes in the isolates demonstrates that they have the ability to develop campylobacteriosis in humans.

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Farm specific risk factors for Campylobacter colonisation in Danish and Norwegian broilers

Cited by 41 publications

References 36 publications

A Review of the Effect of Management Practices on Campylobacter Prevalence in Poultry Farms

A Review of the Effect of Management Practices on Campylobacter Prevalence in Poultry Farms

The Relationship between Human Campylobacteriosis and Broilers

Genetic diversity, antimicrobial resistance, and virulence genes of thermophilic Campylobacter isolated from broiler production chain

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