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Influence of bedding material on footpad dermatitis in broiler chickens

S. F. Bilgili^*,1, J. B. Hess^*, J. P. Blake^*, K. S. Macklin^*, B. Saenmahayak^* and J. L. Sibley

^* Department of Poultry Science, and Department of Horticulture, Auburn University, Auburn, AL 36849-5416

¹ Corresponding author: bilgisf{at}auburn.edu

Bedding availability issues are arising rapidly in the broiler industry that may alter the type and quality of bedding available to growers to rear broiler chickens. Because birds are in direct contact with the litter, the potential impact of bedding materials on footpad health is of concern. In 3 successive trials, 8 different bedding sources (pine shavings, pine bark, chipped pine, mortar sand, ground hardwood pallets, chopped straw, ground door filler, and cotton-gin trash) were compared in side-by-side experimental pens by rearing mixed-sex birds. In addition to broiler growth performance and litter characteristics (moisture, caking, and ammonia volatilization), the incidence and severity of footpad dermatitis (FPD) was assessed at 6 wk of age. Bedding materials had little influence on the live performance of broilers in 3 successive trials. Prevalence of FPD varied significantly (P < 0.05) among the bedding materials. The incidence of FPD paralleled high litter moisture and caking scores, with chipped pine, chopped straw, cotton-gin trash, and pine shavings showing the highest severity scores and mortar sand and ground door filler showing the lowest. From an FPD etiology standpoint, the ability of the bedding to absorb (i.e., ground door filler) and quickly release (i.e., mortar sand) moisture may be the most important characteristics.

Key Words: broiler • foot • paw • strain-cross