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Table 2 E. coli resistance gene detection rate in dairy cattle and beef cattle

From: Phenotypic and molecular characterizations of multidrug-resistant diarrheagenic E. coli of calf origin

Classification Gene name Dairy cattle carry number Positive detection rate Beef cattle carry number Positive detection rate
β-lactams blaTEM 27 100% (27/27) 43 97.7% (43/44)
blaSHV 5 18.5% (5/27) 4 9.1% (4/44)
blaOXA 4 14.8% (4/27) 3 6.8% (3/44)
Aminoglycosides aadA1 19 70.4% (19/27) 44 100% (44/44)
aac (3′)-IIa 26 96.3% (26/27) 25 56.8% (25/44)
aadB 0 0% (0/27) 4 9.1% (4/44)
Chloramphenicols floR 26 96.3% (26/27) 26 59.1% (26/44)
Tetracyclines tet (A) 26 96.3% (26/27) 43 97.7% (43/44)
tet (B) 19 70.4% (19/27) 42 95.5% (42/44)
tet (C) 2 7.4% (2/27) 0 0% (0/44)
Sulfonamides sul1 11 40.7% (11/27) 21 47.7%(21/44)
sul2 26 96.3% (26/27) 34 77.3%(34/44)