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Temporal changes and risk factors for foot-pad dermatitis in Danish broilers.

Niels Chr Kyvsgaard¹, Henrik Bang Jensen, Thorkil Ambrosen

¹Department of Large Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark. nck@life.ku.dk

Poultry Science

|December 18, 2012

Summary

Foot-pad dermatitis in broilers significantly decreased after Denmark

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Area of Science:

Animal Welfare Science
Poultry Production
Veterinary Dermatology

Background:

Foot-pad dermatitis (FPD) is a significant broiler welfare issue linked to ammonia exposure from bedding.
Denmark implemented an action plan in 2002 with monitoring and sanctions to control FPD.

Purpose of the Study:

To analyze time trends in broiler foot-pad lesion scores.
To identify management and environmental factors predisposing flocks to FPD.

Main Methods:

Merged abattoir lesion data, antemortem evaluations, and flock productivity data.
Utilized a mixed-effects model with abattoir as a random effect to analyze flock-level data.
Assessed relationships between lesion scores and various management factors.

Main Results:

A substantial reduction in FPD scores was observed from 2002 to 2005, with slower improvement thereafter.
Poor litter quality, winter season, low daily weight gain, straw bedding, and older slaughter age were associated with higher lesion scores.
Stocking density showed a weak association with FPD.

Conclusions:

The Danish action plan appears effective in reducing FPD, though challenges remain.
Management factors like litter quality, bedding type, and bird age are critical for preventing FPD in broilers.