Submitted to: Poultry Science
Publication Type: Abstract Only
Publication Acceptance Date: August 11, 2002
Publication Date: N/A
Technical Abstract: The present investigation was initiated to determine the specificity and degree of antibiotic resistance that exists in isolates of Salmonella that were recovered from four commercial turkey processing facilities. Isolates were recovered by performing whole carcass rinses of processed turkey carcasses at pre-immersion and post-immersion chill sampling sites within each processing facility. Salmonella isolates (422) were screened for susceptibility to 13 antimicrobials and the rates of resistance (% resistant of total isolates tested) were as follows: ceftiofur (4.3%), tetracycline (68.7%), ampicillin (15.3%), enrofloxacin (0%), sarafloxacin (0%), kanamycin (5.2%), streptomycin (56.2%), gentamicin (25.8%), apramycin (0%), trimethoprim/suflamethoxazole (0%), sulfadimethoxine (60.2%), sulfadimethoxine+ormetoprim, and sulfaquinoxaline (92.6%). Noted resistance was observed in Salmonella isolates from individual plants to tetracycline, streptomycin, gentamicin, ampicillin, and the sulfa-based antibiotics. Importantly, resistance to the two fluoroquinolones that were approved for use in the poultry industry (enrofloxacin or sarafloxacin) was not observed. Further investigations will continue to look at turkey processing facilities to identify antimicrobial susceptibility. The data from the present study will help poultry veterinarians monitor antimicrobials for therapeutic treatment of bacterial diseases and associated potential resistance to bacterial food-borne pathogens.