Descriptive survey and Salmonella surveillance of pastured poultry layer farms in California

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ABSTRACT

While pasture-raised poultry comprises a small portion of the commercial poultry industry in North America, these alternative rearing systems have become increasingly popular. As such, it iscritical to improve our understanding of husbandry practices and prevalence of zoonotic and epizoonotic diseases in these systems. This research reviews the results of a survey sent to 82 commercial pastured poultry farms in California. While the survey response was low(13.4%), it was enhanced by detailed in-person inter-views and farm visits. In addition, we conducted drag swabs for Salmonella nteritidis. On average, farms uti-lized 12.3% of their total farmland for pastured poultry operations, which often coexisted with other live-stock (45%), touch crops (27%), and non-touch crops(45%). While the mean (44.6 sq. ft./hen) and median(22.2 sq. ft./hen) pasture stocking densities were within auditing guidelines, the mean (1.2 sq. ft./hen) and median (0.5 sq. ft./hen) coop stocking densities were below the pending USDA (2016) guidelines recommended in 7CFR Part 205. Drag swab results showed the presence of Salmonella Enteritidis (SE) in the environment of oneof the 11 farms (9.1%).

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