title: Influence of chlortetracycline and chlortetracycline + sulfamethazine supplemented feed on the incidence, persistence and antibacterial susceptibility of salmonella typhimurium in experimentally inoculated calves.
mesh_terms: D000821:Animal Feed; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D002751:Chlortetracycline / Q000627:therapeutic use*; D004352:Drug Resistance, Microbial; D012481:Salmonella Infections, Animal / Q000517:prevention & control*; D012486:Salmonella typhimurium / Q000187:drug effects; D013418:Sulfamethazine / Q000627:therapeutic use*
chemical_list: D013418:Sulfamethazine; D002751:Chlortetracycline