Article CC BY-NC-ND 4.0
refereed
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Influences of biosecurity on the occurrence of cellulitis in broiler flocks

Affiliation
Veterinary Practice and Laboratory Wilms-Ellert-Klosterhalfen, Visbek, Germany
Schulze Bernd, Kathrin;
Affiliation
Veterinary Practice and Laboratory Wilms-Ellert-Klosterhalfen, Visbek, Germany
Wilms-Schulze Kump, Andreas;
Affiliation
Department of Biometry, Epidemiology and Information Processing, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
Freise, F.;
ORCID
0000-0001-7835-5328
Affiliation
German Federal Institute for Risk Assessment (BfR), Department 4 Biological Safety, Unit 41 Food Technologies, Supply Chains and Food Defense, Berlin, Germany
Reich, Felix;
Affiliation
Institute for Veterinary Food Science (IfTN), Justus Liebig University (JLU), Giessen, Germany
Kehrenberg, C.

The main condemnation reason in the slaughter of German conventional broiler fIocks is cellulitis. This disease is primarily caused by the bacterial pathogen Escherichia coli. Biosecurity is the most important aspect to avoid spreading of diseases, but, increasing farm sizes and a close proximity of broiler houses complicate compliance with appropriate measures. This study aimed to identify the most efficient biosecurity factors for controlling cellulitis in broiler chickens by using a comprehensive questionnaire. Data of the biosecurity management from broiler farms were compared to condemnation ratios of the broiler flocks. It was found that using appropriate farm-specific clothing with changing of shoes and an adequate cleaning of the broiler houses after each grow out period helped to improve outcomes regarding total condemnation ratios as well as condemnation ratios due to cellulitis.

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