Validation of a method for the detection of virulent Yersinia enterocolitica and their distribution in slaughter pigs from conventional and alternative housing systems

Nowak, B.; Mueffling, Theda Von; Caspari, Kai; Hartung, J.

doi:10.1016/j.vetmic.2006.06.002

Cited by 46 publications

(36 citation statements)

References 21 publications

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“…The prevalence of Yersinia enterocolitica has been shown to be higher in specialized slaughter pig production than in conventional farrow-to-finish production and in conventional production than in organic production (27,31). Because Y. pseudotuberculosis has been isolated from soil and a multitude of wild animals (8,9,24,26), the prevalence of Y. pseudotuberculosis may be increased in production systems, such as organic pig production, where pigs have contact with the outside environment.…”

mentioning

confidence: 99%

Transmission of Yersinia pseudotuberculosis in the Pork Production Chain from Farm to Slaughterhouse

Laukkanen

Martínez

Siekkinen

et al. 2008

Appl Environ Microbiol

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The transmission of Yersinia pseudotuberculosis in the pork production chain was followed from farm to slaughterhouse by studying the same 364 pigs from different production systems at farm and slaughterhouse levels. In all, 1,785 samples were collected, and the isolated Y. pseudotuberculosis strains were analyzed by pulsed-field gel electrophoresis. The results of microbial sampling were combined with data from an on-farm observation and questionnaire study to elucidate the associations between farm factors and the prevalence of Y. pseudotuberculosis. Following the same pigs in the production chain from farm to slaughterhouse, we were able to show similar Y. pseudotuberculosis genotypes in live animals, pluck sets (containing tongue, tonsils, esophagus, trachea, heart, lungs, diaphragm, liver, and kidneys), and carcasses and to conclude that Y. pseudotuberculosis contamination originates from the farms, is transported to slaughterhouses with pigs, and transfers to pluck sets and carcasses in the slaughter process. The study also showed that the high prevalence of Y. pseudotuberculosis in live pigs predisposes carcasses and pluck sets to contamination. When production types and capacities were compared, the prevalence of Y. pseudotuberculosis was higher in organic production than in conventional production and on conventional farms with high rather than low production capacity. We were also able to associate specific farm factors with the prevalence of Y. pseudotuberculosis by using a questionnaire and on-farm observations. On farms, contact with pest animals and the outside environment and a rise in the number of pigs on the farm appear to increase the prevalence of Y. pseudotuberculosis.

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mentioning

confidence: 99%

Transmission of Yersinia pseudotuberculosis in the Pork Production Chain from Farm to Slaughterhouse

Laukkanen

Martínez

Siekkinen

et al. 2008

Appl Environ Microbiol

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“…Von Altrock et al (2011) conversely found no association with antimicrobial use and Y. enterocolitica serological status in swine. Nowak et al (2006) reported that conventional farms had a higher proportion of samples positive for virulent (defined as ail-harboring) Y. enterocolitica as compared to pigs reared in organic systems. Another critical difference between the Nowak et al (2006) study and the results presented here is that conventional farms received pigs from many different farrowing farms, while organic farms tended to be ''closed farms'' rearing their own pigs in a farrow-finish production system.…”

Section: Discussionmentioning

confidence: 99%

“…Limited studies have suggested that on-farm management practices are associated with isolation of Y. enterocolitica from swine (Nowak et al, 2006;Wesley et al, 2008;Laukkanen et al, 2009;Martínez et al, 2011;Virtanen et al, 2011;von Altrock et al, 2011). In addition to risk factors associated with biosecurity or hygiene (e.g., water source, access to wildlife, pests, or other domestic species), risk factors associated with antimicrobial use policy have also been identified (Nowak et al, 2006;Virtanen et al, 2011;von Altrock et al, 2011). With increasing scrutiny of agricultural antimicrobial use, there is a critical need to understand the implications of reduced antimicrobial use on the prevalence of zoonotic pathogens.…”

Section: Introductionmentioning

confidence: 99%

Prevalence ofYersinia enterocoliticain Antimicrobial-Free and Conventional Antimicrobial Use Swine Production

Funk

Abley

Bowman

et al. 2013

Foodborne Pathogens and Disease

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Swine are the primary reservoir for foodborne illness associated with Yersinia enterocolitica. The use of antimicrobials in animal agriculture has been hypothesized as having a potential role in the increase in prevalence of zoonotic pathogens. The objective of this study was to compare the frequency of Y. enterocolitica fecal shedding in swine reared on farms with conventional antimicrobial use policies to farms that were antimicrobial free (ABF). Swine farms were selected from three regions in the United States. In each region, farms were categorized based on antimicrobial use policy. Fecal samples were collected from pigs on-farm within 48 h of harvest. The overall proportion of Y. enterocolitica and ail-harboring Y. enterocolitica-positive pigs was 10.9% and 4.0%, respectively. There were increased odds (odds ratio [OR] 6.8, 95% confidence interval [CI] 3.46-13.28) for a pig to be Y. enterocolitica positive if it was reared on an ABF farm as compared to a conventional farm. There was no significant association between farm antimicrobial use policy and isolation of an ail-harboring Y. enterocolitica from an individual pig (OR 1.8, 95% CI 0.90-3.61). The association of antimicrobial use policy with Y. enterocolitica shedding in feces should be interpreted cautiously, as antimicrobial use cannot be separated from other management factors (e.g., confinement or outdoor housing), which may be associated with risk of Y. enterocolitica in swine.

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“…In one study on farm and processing level (Nowak et al, 2006), in three out of four sample types for…”

Section: Pigsmentioning

confidence: 99%

Sustainability of livestock production systems : a comparing conventional and organic livestock husbandry

Wagenberg¹,

Haas²,

Hogeveen³

et al. 2016

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This study analysed peer-reviewed literature comparing conventional and organic livestock production systems on sustainability indicators within the topics of economy, productivity, environment, animal welfare and public health. For many indicators, insufficient data were found to draw any conclusions on a difference. The strong points of both conventional and organic livestock production systems were used to formulate lessons learned for sustainable livestock production systems. As sustainability indicators often interact with other sustainability indicators in opposing directions, sustainable livestock production should be approached as a multi-criteria problem optimising a balanced combination of sustainability indicators in all topics.Deze studie heeft wetenschappelijke literatuur geanalyseerd, die conventionele en biologische dierlijke productiesystemen kwantitatief vergelijkt op duurzaamheidsindicatoren binnen de onderwerpen economie, productiviteit, milieu, dierenwelzijn en volksgezondheid. Voor veel indicatoren zijn onvoldoende gegevens gevonden om conclusies te trekken over een verschil. Gevonden sterke punten van zowel conventionele als biologische systemen zijn gebruikt om lessen te trekken voor duurzame veehouderij. Aangezien duurzaamheidsindicatoren vaak onderling samenhangen in tegenstrijdige richting moet een duurzame veehouderij gezien worden als een multicriteria beslissingsprobleem, waarin een gebalanceerde combinatie van indicatoren uit alle duurzaamheidsonderwerpen moet worden geoptimaliseerd.

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Validation of a method for the detection of virulent Yersinia enterocolitica and their distribution in slaughter pigs from conventional and alternative housing systems

Cited by 46 publications

References 21 publications

Transmission of Yersinia pseudotuberculosis in the Pork Production Chain from Farm to Slaughterhouse

Transmission of Yersinia pseudotuberculosis in the Pork Production Chain from Farm to Slaughterhouse

Prevalence ofYersinia enterocoliticain Antimicrobial-Free and Conventional Antimicrobial Use Swine Production

Sustainability of livestock production systems : a comparing conventional and organic livestock husbandry

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