Prevalence of Salmonella enterica Serotypes Isolated From Broiler Liver and Their Antibiotic Resistance Profiles

Salmonella is an important foodborne pathogen of worldwide significance. The objective of this research was to determine the prevalence of Salmonella in chicken livers in Türkiye. This study obtained 104 packaged chicken liver samples, 13 from each of the 8 brands, from the province of Kırklareli, northwest of Türkiye. The overall prevalence of Salmonella spp. in liver samples was 36.5%. The 38 Salmonella isolates obtained were serotyped by slide agglutination using antisera by the Kauffmann White Le Minor Scheme. Based on standard serotyping results, the dominant serovar was S. Infantis (81.6%), followed by S. Enteritidis (13.1%) and S. Agona (5.3%). Antimicrobial susceptibility testing of 38 Salmonella isolates was performed using disk diffusion method. The Salmonella isolates (n = 38) were resistant to cefepime (60.5%), chloramphenicol (57.9%), trimethoprim-sulfamethoxazole (50.0%), amoxicillin-clavulanic acid (39.5%), azithromycin (28.9%), ofloxacin (26.3%), and cefoxitin (13.2%). Multidrug-resistance (MDR) accounted for 47.4% of Salmonella isolates. MDR was observed in S. Infantis (17/31, 54.8%) and S. Agona (1/2, 50.0%), nevertheless not in S. Enteritidis.