Micro-Organism Resistance in food Animals

Percent of Micro-organisms in Food Animals
that are Resistant to Selected Antibiotics from Jan.- June and Jul.- Dec. 2003
(in Companion Animals)

	Beef								Dairy										Swine
Antibiotic	E. coli		Past. Haemolitica		Past. Multocida		Salmonella sp.		E. coli		Past. Haemolitica		Past. Multocida		Staph. aureus		Salmonella sp.		APP		E. coli		Salmonella sp.		Strep. suis
	Jan.- June	July- Dec.	Jan.- June	July -Dec.	Jan.- June	July- Dec.	Jan.- June	July -Dec.	Jan.- June	July- Dec.	Jan.- June	July- Dec.	Jan.- June	July- Dec.	Jan.- June	July- Dec.	Jan.- June	July- Dec.	Jan.- June	July- Dec.	Jan.- June	July -Dec.	Jan.- June	July- Dec.	Jan.- June	July -Dec.
Ampicillin	25	28	33	14	11	8	40	50	52	59	0	50	22	0	35	32	30	54	17	18	58	59	47	63	1.83	3.8
Apramycin	6	3	17	71	56	100	20	0	28	22	17	0	56	70	na	na	9	0	7	5	20	17	8	8	45.8	28.8
Ceftiofur	11	3	0	0	11	8	40	50	25	20	0	0	0	0	0	5	30	50	0	0	13	13	18	30	4.29	9.4
Chlortetracycline	59	52	0	14	11	8	40	50	86	78	0	50	0	0	na	na	39	53	14	5	94	92	78	83	96.6	84.8
Clindamycin	100	100	100	100	100	100	100	100	96	96	100	50	100	90	na	na	100	100	14	27	99	100	100	100	85.1	85
Enrofloxacin	5	14	0	14	11	8	0	0	11	15	0	0	0	0	na	na	0	0	2	0	0	0	0	0	7.04	0.86
Erythromycin	98	100	0	14	22	38	100	100	96	98	0	0	11	8	10	5	100	98	2	5	99	100	100	100	82.4	84.4
Florphenicol	100	100	0	14	11	25	100	100	95	98	0	0	11	10	na	na	100	100	0	0	100	99	98	100	78.1	57.8
Gentamicin	13	17	0	0	0	25	20	25	49	40	0	0	0	0	na	na	17	11	0	0	23	21	6	5	3.71	6.98
Neomycin	24	21	83	43	22	75	20	50	75	67	33	50	56	20	na	na	22	25	2	5	45	40	25	28	60.7	49.3
Oxytetracycline	67	62	67	29	44	63	40	50	86	82	33	50	56	20	na	na	43	55	43	36	95	96	78	85	95.4	89.2
Penicillin	100	100	50	57	22	25	100	100	96	98	100	100	33	17	35	32	100	100	88	68	100	100	100	100	5.2	8.46
Sulphadimethoxine	52	48	83	43	78	75	40	50	63	57	33	50	67	42	85	100	39	61	12	18	74	69	75	65	55	60.4
Spectinomycin	32	41	100	71	67	75	100	100	76	64	83	50	89	20	na	na	91	93	9	32	55	62	92	95	22.1	35.8
Sulpha- chloropyridazine	52	48	0	43	67	75	40	50	84	80	33	0	67	80	na	na	35	55	22	18	73	69	65	63	58.8	59.3
Sulphathiazole	52	48	83	57	89	75	40	50	84	78	50	50	78	60	na	na	39	55	19	14	76	68	65	63	60.6	61.3
Tiamulin	100	100	50	71	78	88	100	100	96	96	50	50	67	90	na	na	100	100	9	9	100	100	100	100	18.4	24.4
Tilmicosin	100	93	0	14	22	63	100	100	96	95	17	0	22	10	na	na	100	100	2	9	100	98	100	100	81.8	85.5
Triple Sulfa	16	24	0	14	11	0	20	25	68	56	33	0	0	0	na	na	13	4	0	0	17	14	16	18	0.62	2.94
Tylosin	100	100	100	100	100	75	100	100	96	96	100	100	100	90	na	na	100	100	na	na	100	100	100	100	na	na
number of isolates	63	29	6	7	9	8	5	4	80	55	6	2	9	10	20	22	23	55	58	22	128	121	51	40	109	105