title: Chlortetracycline-resistant intestinal bacteria in organically raised and feral Swine.
abstract: Organically raised swine had high fecal populations of chlortetracycline (CTC)-resistant (growing at 64 μg CTC/ml) Escherichia coli, Megasphaera elsdenii, and anaerobic bacteria. By comparison, CTC-resistant bacteria in feral swine feces were over 1,000-fold fewer and exhibited lower taxonomic diversity.
authors.affiliation: Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture, Ames, IA 50010, USA. Thad.Stanton@ars.usda.gov
authors.forename: Thad B
authors.initials: TB
authors.lastname: Stanton
authors.forename: Samuel B
authors.initials: SB
authors.lastname: Humphrey
authors.forename: William C
authors.initials: WC
authors.lastname: Stoffregen
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001419:Bacteria / Q000145:classification / Q000187:drug effects* / Q000302:isolation & purification; D002751:Chlortetracycline / Q000494:pharmacology*; D024881:Drug Resistance, Bacterial; D005243:Feces / Q000382:microbiology; D041981:Gastrointestinal Tract / Q000382:microbiology*; D013552:Swine
chemical_list: D000900:Anti-Bacterial Agents; D002751:Chlortetracycline