Effect of prohibition of the use of tetracyclines in animal feeds on tetracycline resistance of faecal E. coli of pigs.
D000821:Animal Feed; D000818:Animals; D000900:Anti-Bacterial Agents; D004352:Drug Resistance, Microbial; D004926:Escherichia coli / Q000187:drug effects*; D005243:Feces / Q000382:microbiology*; D005503:Food Additives; D008826:Microbial Sensitivity Tests; D013552:Swine; D013752:Tetracycline
D000900:Anti-Bacterial Agents; D005503:Food Additives; D013752:Tetracycline