BMC Microbiology

Table 1 Detection of tetracycline (TE) and streptomycin (ST) residues in 13 beef muscle (meat) and 8 beef liver samples using Charm II technique

From: Detection of tetracycline and streptomycin in beef tissues using Charm II, isolation of relevant resistant bacteria and control their resistance by gamma radiation

Beef muscle (meat)			Beef liver
Sample no.	TE (cpm)	ST (cpm)	Sample no.	TE (cpm)	ST (cpm)
1	515^a	1052^a	1	379^a	519^a
2	797 ^a	1674	2	378^a	1079^a
3	667^a	1088^a	3	847^a	1117^a
4	687^a	1333	4	828^a	932^a
5	924^a	1655	5	787^a	1073^a
6	804^a	1319	6	880^a	1129^a
7	977^a	1063^a	7	623^a	972^a
8	1113^a	1154^a	8	897 ^a	1470
9	1235^a	1408

cpm Count per minute
cp Control point (average of 6 standard readings); cp for tetracycline = 1530 cpm, and cp for streptomycin = 1290 cpm
^a Positive samples, i.e. their cpm ≤ the cp

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ISSN: 1471-2180

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