Reference | 8VLRXDX6 (14)

The purpose of this study was to determine the effects of RWA and organic methods on the prevalence and antimicrobial resistance (AMR) of Campylobacter. Samples were collected on16 different days spread over 1 yr. Eight sampling days were during processing of organic birds and 8 d were during processing of conventional birds. The experiment was scheduled so that two sampling dates were performed during each season for both organic and conventional processing. Five fecal grab samples (approximately 10 g each) were collected each day from the end of the live hang conveyor. Each sample was a composite consisting of droppings from three locations along the width of the conveyor. Each sampling day, five carcass rinses were collected at seven different processing steps (35 total carcass rinses). These included (i) post-pick, (ii) post-evisceration, (iii) post-inside/outside bird washer and OLR (post-IOBW), (iv) post-air-chill rehang, (v) post-PRT, (vi) post-water-chill, and (vii) and post-air-chill.

Samples were collected from a processing plant in the Midwest US, where organic and conventional methods were used for processing of broilers, and the final product was marketed as “antibiotic free.” All birds were RWA; however, coccidiostats were used in conventionally raised birds. Samples included fecal grab samples from incoming birds, carcass rinses at important steps throughout processing, and environmental samples including equipment swabs, water samples, and air samples.

AST Method: None

Reference explicitly reports AST breakpoints: None

Reference reports using a MIC table: None