Cattle | Finishers
5
Virginiamycin use for growth promotion (in mineral mix: 0.94 mg/kg/day throughout feedlot period) vs no virg. use. Extracted from exit from feedlot timepoint, Batch 2 (B2) animals only (18 mos old @ feedlot entry, exit @ feedlot = 100 d later).
| Resistance | Microbe | Outcome | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Enrofloxacin / | Escherichia coli |
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| Nalidixic Acid / | Escherichia coli |
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| Tetracycline / | Escherichia coli |
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| Amoxicillin And Beta-Lactamase Inhibitor / | Escherichia coli |
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| Streptomycin / | Escherichia coli |
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