Bailey, Matthew A. and Taylor, Rhonda M. and Brar, Jagpinder S. and Corkran, Sydney C. and Velsquez, Carmen and Novoa Rama, Estefania and Oliver, Haley F. and Singh, Manpreet (United States of America)
Poultry Science (2019)
The objectives of this study were to determine the effects of organic and RWA (raised without antibiotics) methods on Campylobacter prevalence and AMR during processing. 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. For each positive sample, one confirmed isolate was tested for antimicrobial resistance. Resistance was determined using minimum inhibitory concentration (MIC) breakpoints established by CLSI (2014) and NARMS (USFDA, 2011a).
Samples were collected on 16 different days spread over 1 year. 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). Environmental samples were also collected and included equipment swab samples, water samples, and air samples. A 50 mL water sample was collected from the stunner, scalder, water chiller, PRT, and post-air-chill dip tank.
AST Method: Broth Microdilution
Reference explicitly reports AST breakpoints: False
Reference reports using a MIC table: False
Is Excluded: False
| Country | Sub-Region | Sub-Region Detail |
|---|---|---|
| United States of America | Other (Other) | Midwest |
| ID | Note | Resolution |
|---|
| Title | Host | Host | Production Stage | Description | ROs |
|---|---|---|---|---|---|
| Organic processing | Chicken | Broilers | Farm | Both organic and conventional processing were antibiotic-free | 9 |