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Histologically-validated footpad dermatitis scoring system for use in chicken processing plants.

V Michel¹, E Prampart, L Mirabito

¹Anses-Ploufragan, Unité d'Epidémiologie et Bien-Etre en Aviculture et Cuniculture, Laboratoire d'Etudes et de Recherches Avicoles, Porcines et Piscicoles, BP 53, F-22440 Ploufragan, France. virginie.michel@anses.fr

British Poultry Science

|September 18, 2012

Summary

A new scoring system for broiler footpad dermatitis (FPD) was developed. This system reliably assesses lesion severity for improved broiler welfare in processing plants.

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Area of Science:

Animal Science
Veterinary Medicine
Poultry Science

Background:

Footpad dermatitis (FPD) is a significant welfare issue in broiler chickens.
Current assessment methods lack reliability and ease of use in processing plants.

Purpose of the Study:

To establish a reliable correlation between macroscopic and histological FPD features.
To develop a practical and welfare-relevant scoring system for broiler FPD.

Main Methods:

Macroscopic and microscopic examination of 54 broiler feet.
Definition and classification of three distinct footpad lesion types (I, II, III) based on severity.
Development of a 5-point scoring scale integrating lesion type and extent.

Main Results:

Three lesion types were defined: Type I (mild), Type II (moderate), and Type III (severe).
A 5-point scale was devised, categorizing lesions by severity and percentage of footpad affected.
The new scoring system demonstrated histological validation and practical usability.

Conclusions:

The developed 5-point scoring system accurately reflects broiler welfare concerns.
This system offers a reliable and easy-to-implement tool for routine FPD assessment in processing plants.
Histological validation supports the clinical relevance of the new scoring scale.