title: Influence of chlortetracycline in swine feed on reproductive performance and on incidence and persistence of antibiotic resistant enteric bacteria.
mesh_terms: D000821:Animal Feed; D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects*; D002751:Chlortetracycline / Q000494:pharmacology*; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000187:drug effects / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D005260:Female; D005503:Food Additives / Q000494:pharmacology; D007778:Lactobacillus / Q000187:drug effects / Q000302:isolation & purification; D008098:Litter Size; D011247:Pregnancy; D012098:Reproduction / Q000187:drug effects*; D013552:Swine / Q000254:growth & development / Q000382:microbiology / Q000502:physiology*
chemical_list: D000900:Anti-Bacterial Agents; D005503:Food Additives; D002751:Chlortetracycline