Effect of protein level and penicillin on growth and intestinal flora of chickens.
D000818:Animals; D002645:Chickens; D007422:Intestines; D008460:Meat; D010406:Penicillins / Q000494:pharmacology*; D011506:Proteins / Q000494:pharmacology*
D010406:Penicillins; D011506:Proteins
INTESTINES; PENICILLIN/effects; PROTEINS/effects