Antimicrobial resistance and prevalence of tetracycline resistance genes in Escherichia coli isolated from lesions of colibacillosis in broiler chickens in Sistan, Iran

Table 2 Antimicrobial susceptibility to TE₃₀ depending on the presence or absence of the tetA, tetB, tetC, and tetD genes, among 60 isolates of Escherichia coli

Antimicrobial agent	Susceptibility	*tet*A	*tet*B	*tet*C	*tet*D
TE₃₀	Resistant	56 (97%)	22 (96%)	19 (100%)	3 (60%)
	Intermediate	1 (2%)	0 (0%)	0 (0%)	1 (20%)
	Susceptible	1 (2%)	1 (4%)	0 (0%)	1 (20%)
Statistical association between TE₃₀&**tet(s)**		0.096	0.583	0.308	0.017^a
*Number of isolates withtetgenes*		58	23	19	5

ISSN: 1746-6148