Chicken | Broilers
9
Referent = Farms 1 & 2 (no AMU), Exposed = Farm 4 (500 ppm SDMX given starting at 20 days old, for 3 days, additional AMU for disease treatment). Days old at sampling: Farm 1 = 50 days, Farms 2 and 4 = 48 days.
| Resistance | Microbe | Outcome | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ampicillin / | Escherichia coli |
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| Cefazolin / | Escherichia None |
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| Ceftiofur / | Escherichia None |
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| Dihydrostreptomycin / | Escherichia None |
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| Kanamycin / | Escherichia None |
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| Gentamicin / | Escherichia None |
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| Oxytetracycline / | Escherichia None |
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| Nalidixic Acid / | Escherichia None |
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| Trimethoprim / | Escherichia None |
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