Fluctuation of drug-resistant Escherichia coli in young chickens moved from relatively clean environment to conventional one.
D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002645:Chickens / Q000382:microbiology*; D004203:Disinfection; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000187:drug effects / Q000302:isolation & purification*; D006799:Housing, Animal
D000900:Anti-Bacterial Agents