The PCR results for detecting antibiotic-resistance genes in E. coli isolated from pigs’ feces
M: Ladder (100 bp), N: negative control, 1: blaampC (191 bp), 2: aadA1 (447 bp), 3: tetA (577 bp), 4: mcr-1 (309 bp), 5: qnrA (546 bp), 6: sulII (722 bp).