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Degradation of erythromycin A was studied using two sediment samples obtained from the salmon and trout hatchery sites at Hupp Springs (HS) and Goldendale (GD), Washington, United States. The former site had been treated for 3 years with erythromycin-medicated feed prior to the experiments, and the latter site had not been treated with any antibiotic for at least 6 years. The two sediment microcosms...
Mineralization of erythromycin A was studied using two differently 14 C-labeled erythromycins A, which were added to aquaculture sediment samples obtained from the two salmon hatchery sites in Washington state. The added erythromycin A did not significantly alter the numbers of the total viable colonies and erythromycin-resistant bacteria. Erythromycin-resistant Pseudomonas species contained...
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