Publikationsdatenbank

Impact of on-farm interventions against CTX-resistant Escherichia coli on the contamination of carcasses before and during an experimental slaughter (2021)

Art

Zeitschriftenartikel / wissenschaftlicher Beitrag

Autoren

Projahn, Michaela

Sachsenroeder, Jana

Correia-Carreira, Guido

Becker, Evelyne

Martin, Annett

Thomas, Christian

Hobe, Carolin

Reich, Felix

Robé, Caroline (WE 10)

Roesler, Uwe (WE 10)

Kaesbohrer, Annemarie

Bandick, Niels

Quelle

Antibiotics : open access journal

Bandzählung: 10

Heftzählung: 3

Seiten: Artikel 228

ISSN: 2079-6382

Sprache

Englisch

Verweise

URL (Volltext): https://www.mdpi.com/2079-6382/10/3/228

DOI: 10.3390/antibiotics10030228

Pubmed: 33668337

Kontakt

Institut für Tier- und Umwelthygiene

Robert-von-Ostertag-Str. 7-13
14169 Berlin
+49 30 838 51845
tierhygiene@vetmed.fu-berlin.de

Abstract / Zusammenfassung

Cefotaxime (CTX)-resistant Enterobacteriaceae are still an ongoing challenge in human and veterinary health. High prevalence of these resistant bacteria is detected in broiler chickens and the prevention of their dissemination along the production pyramid is of major concern. The impact of certain on-farm interventions on the external bacterial contamination of broiler chickens, as well as their influence on single processing steps and (cross-) contamination, have not yet been evaluated. Therefore, we investigated breast skin swab samples of broiler chickens before and during slaughter at an experimental slaughter facility. Broiler chickens were previously challenged with CTX-resistant Escherichia coli strains in a seeder-bird model and subjected to none (control group (CG)) or four different on-farm interventions: drinking water supplementation based on organic acids (DW), slow growing breed Rowan × Ranger (RR), reduced stocking density (25 kg/sqm) and competitive exclusion with Enterobacteriales strain IHIT36098(CE). Chickens of RR, 25 kg/sqm, and CE showed significant reductions of the external contamination compared to CG. The evaluation of a visual scoring system indicated that wet and dirty broiler chickens are more likely a vehicle for the dissemination of CTX-resistant and total Enterobacteriaceae into the slaughterhouses and contribute to higher rates of (cross-) contamination during processing.