A comparison of the growth of chicks in the Gustafsson germ-free apparatus and in a conventional environment, with and without dietary supplements of penicillin.
D000818:Animals; D002645:Chickens; D019587:Dietary Supplements; D004777:Environment; D005856:Germ-Free Life; D006128:Growth; D010406:Penicillins
D010406:Penicillins
GERM-FREE LIFE; GROWTH; PENICILLIN