Risk factors for Campylobacter colonization in Danish broiler flocks, 2010 to 2011

Area of Science:

• Veterinary Medicine
• Food Safety
• Animal Husbandry

Background:

• Campylobacter is a significant pathogen in poultry, posing risks to both animal health and human food safety.
• Estimating the prevalence and identifying risk factors for Campylobacter in Danish broiler flocks is essential for effective control strategies.

Purpose of the Study:

• To estimate the prevalence of Campylobacter-positive farms and flocks in Denmark.
• To identify updated risk factors associated with Campylobacter introduction into Danish broiler flocks.

Main Methods:

• Two studies were conducted: one involving farm visits and questionnaires (n=25), and another with an electronic survey to broiler farmers (n=164).
• Data from surveys were combined with information from the Quality Assurance System in the Danish Broiler Production (KIK) database.
• Campylobacter flock status was determined using real-time PCR testing of fecal samples collected preslaughter.

Main Results:

• The flock prevalence of Campylobacter was 17% in the visited farms and 14% in the electronically surveyed farms.
• Significant risk factors identified include: summer season, previous Campylobacter-positive flocks, litter delivery close to new chicken arrival, and vertically based ventilation systems.

Conclusions:

• Seasonal variations, flock history, litter management, and ventilation type significantly influence Campylobacter presence in Danish broiler flocks.
• These findings provide valuable insights for implementing targeted biosecurity measures to reduce Campylobacter contamination in poultry production.