title: Incidence of factors of transferable resistance to antibiotics and other sex factors in strains of Escherichia coli in the oecological system of large pig farms.
mesh_terms: D000818:Animals; D004352:Drug Resistance, Microbial; D004463:Ecology; D004926:Escherichia coli / Q000187:drug effects* / Q000254:growth & development; D005260:Female; D008297:Male; D012737:Sex Factors; D013552:Swine; D013752:Tetracycline / Q000494:pharmacology*
chemical_list: D013752:Tetracycline