Skip to main content
. 2021 Jul 30;12:699927. doi: 10.3389/fmicb.2021.699927

TABLE 2.

MIC distribution of E. coli (N = 500) and prevalence of resistance by isolation source.

graphic file with name fmicb-12-699927-t002.jpg

SF, Sulfisoxazole; SPT, Spectinomycin; MEQ, Mequindox; AMP, Ampicillin; GEM, Gentamycin; TET, Tetracyclines; FFC, Florfenicol; CAZ, Ceftazidime; CEF, Ceftiofur; MEM, Meropenem; PB, Polymyxin B; ENR, Enrofloxacin.

Gray and red colors indicate applied dilution ranges and breakpoints, respectively.

* Statistically significant difference (P < 0.05) between intensive farming and free-range (expect mequindox).

A and C define intensive farming (Ningxia and Shaanxi) and free-range (Qinghai and Inner Mongolia) isolates showing microbial resistance, that is, MIC value higher than breakpoint.

B and D represent the percentage of drug-resistant strains in intensive farming and free-range, respectively.