Growth response to dietary penicillin of germ-free chicks and of chicks with a defined intestinal flora.
D000818:Animals; D002645:Chickens; D004032:Diet; D006128:Growth / Q000187:drug effects*; D010406:Penicillins / Q000494:pharmacology*
D010406:Penicillins
GROWTH/effect of drugs on; PENICILLIN/effects