Although not statistically significant, an increasing trend was observed in tilmicosin or tetracycline residues from sampling points 1 to 10, while a decreasing trend was observed in penicillin or sulfamethoxazone residues during the same period.
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Analysis of Antimicrobial Residues and Resistance Profiles of <i>Escherichia coli</i> and <i>Enterococcus</i> spp. in Lagoon Water from California Dairies.
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