title: Fluctuations in Escherichia coli O-serotypes in pigs throughout life in the presence and absence of antibiotic treatment.
mesh_terms: D000818:Animals; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000254:growth & development*; D007422:Intestines / Q000382:microbiology*; D011815:R Factors; D012703:Serotyping; D013552:Swine / Q000382:microbiology*; D013752:Tetracycline / Q000494:pharmacology*; D013997:Time Factors
chemical_list: D013752:Tetracycline