title: Effect of low level chlortetracycline feeding on subsequent therapy of Escherichia coli infection in chickens.
mesh_terms: D000667:Ampicillin / Q000627:therapeutic use; D000821:Animal Feed; D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D002645:Chickens; D002701:Chloramphenicol / Q000627:therapeutic use; D002751:Chlortetracycline / Q000008:administration & dosage* / Q000494:pharmacology / Q000627:therapeutic use; D004926:Escherichia coli / Q000187:drug effects / Q000302:isolation & purification; D004927:Escherichia coli Infections / Q000188:drug therapy / Q000401:mortality / Q000662:veterinary*; D005243:Feces / Q000382:microbiology; D005503:Food Additives; D007778:Lactobacillus / Q000302:isolation & purification; D010403:Penicillin Resistance; D011201:Poultry Diseases / Q000188:drug therapy* / Q000401:mortality
chemical_list: D000900:Anti-Bacterial Agents; D005503:Food Additives; D002701:Chloramphenicol; D000667:Ampicillin; D002751:Chlortetracycline