Prevalence and antimicrobial resistance of Salmonella spp. isolated from swine and poultry farms in Cambodia

The study aimed to assess the prevalence and antimicrobial resistance (AMR) profiles of Salmonella spp. in Cambodian swine and poultry farms. 638 fecal samples were collected from five provinces. Salmonella was detected in 6.58% of samples, with the highest prevalence in the growing stage. High resistance was observed against β-lactams, tetracyclines, and sulfonamides. Fluoroquinolone resistance was moderate, while aminoglycoside resistance was low. Multidrug resistance (MDR) patterns were identified in 91.30% of poultry isolates and 52.63% of swine isolates. The study highlights the need for improved antimicrobial stewardship and surveillance programs to mitigate AMR spread in animal agriculture.