Isolation, Identification, and Susceptibility Profile of E. coli, Salmonella, and S. aureus in Dairy Farm and Their Public Health Implication in Central Ethiopia

Table 5

Antimicrobial susceptibility profiles of S. aureus, E. coli and Salmonella.

Antibiotics	Species	Susceptible		Intermediate		Resistant
		No	%	No	%	No	%
Ceftriaxone	S. aureus	—	—	—	—	—	—
	E. coli	16	53.33	1	3.33	13	43.33
	Salmonella	8	61.5	4	30.8	1	7.8
Cefoxitin	S. aureus	18	29	—	—	44	71
	E. coli	17	56.7	7	23.3	6	20
	Salmonella	5	38.5	5	38.5	3	23
Ciprofloxacin	S. aureus	38	61.3	17.34	27.4	7	11.3
	E. coli	19	63.3	10	33.3	1	3.3
	Salmonella	—	—	8	61.5	5	38.5
Methicillin	S. aureus	3	4.8	1	1.6	58	93.
Gentamycin	S. aureus	58	93.6	—	—	4	6.5
	E. coli	27	90	—	—	3	10
	Salmonella	11	85	1	7.8	1	7.2
Erythromycin	S. aureus	12	19.4	14	22.6	36	58
	E. coli	—	—	—	—	—	—
	Salmonella	—	—	—	—	—	—
Nalidixic acid	S. aureus	—	—	—	—	—	—
	E. coli	18	60	7	23.3	5	16.67
	Salmonella	3	23	1	7	9	70
Nitrofurantoin	S. aureus	28	45.1	8	12.9	26	41.94
	E. coli	21	70	6	20	3	10
	Salmonella	9	69.2	3	23	1	7.8
Penicillin	S. aureus	—	—	—	—	62	100
	E. coli	—	—	—	—	—	—
	Salmonella	—	—	—	—	—	—
Streptomycin	S. aureus	8	12.9	29	46.77	25	40.32
	E. coli	14	46.6	9	30	7	23.33
	Salmonella	6	46.1	1	7.69	6	46.15
Trimethoprim/sulfamethoxazole	S. aureus	4	6.45	1	1.61	57	91.94
	E. coli	—	—	—	—	—	—
	Salmonella	—	—	—	—	—	—
Tetracycline	S. aureus	13	20.9	8	12.90	41	66.13
	E. coli	5	16.6	—	—	25	83.3—
	Salmonella	7	53.8	—	—	6	46.15
Vancomycin	S. aureus	—	—	—	—	—	—
	E. coli	5	16.6	1	3.3	24	80
	Salmonella	3	23.0	3	23.08	7	53.85
Kanamycin	S. aureus	30	48.3	12	19.35	20	32.26
MDR	S. aureus	1	1.61	—	—	61	98.39
	E. coli	13	43.3	—	—	17	56.67
	Salmonella	6	46.1	—	—	7	53.85