Antibiotics in animal feeds [proceedings].
D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000187:drug effects; D013754:Tetracyclines / Q000494:pharmacology
D000900:Anti-Bacterial Agents; D013754:Tetracyclines