ANTIBIOTICS in old environment for chickens.
D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002645:Chickens; D004032:Diet; D004777:Environment; D006128:Growth / Q000187:drug effects*; D006801:Humans; D008460:Meat
D000900:Anti-Bacterial Agents
ANTIBIOTICS/effects; DIETS/experimental; GROWTH/effect of drugs on