Cattle | Pre-weaned Calves
12
Drug residues included ceftiofur, penicillin, ampicillin, and oxytetracycline at concentrations of 0.1, 0.005, 0.01, and 0.3 mg/ml, respectively.
| Resistance | Microbe | Outcome | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tetracycline / | Escherichia coli |
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| Ceftriaxone / | Escherichia coli |
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| Ampicillin / | Escherichia coli |
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| Cefoxitin / | Escherichia coli |
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| Ceftiofur / | Escherichia coli |
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| Ciprofloxacin / | Escherichia coli |
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| Nalidixic Acid / | Escherichia coli |
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| Gentamicin / | Escherichia coli |
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| Chloramphenicol / | Escherichia coli |
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| Neomycin / | Escherichia coli |
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| Streptomycin / | Escherichia coli |
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| Sulfamethoxazole And Trimethoprim / | Escherichia coli |
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