Buffered peptone water facilitates plasmid-mediated transfer of antimicrobial resistance genes to Salmonella during pre-enrichment of swine cecal samples
We evaluated the transfer of antimicrobial resistance to Salmonella spiked in swine cecal samples and incubated in buffered peptone water, Gram-negative broth, or tetrathionate broth. Salmonella recovery, the proportion of Salmonella that acquired ampicillin and tetracycline resistance, acquired plasmid diversity, and microbial profiles of enrichments were assessed.