Pyridine derivatives as growth factors in the duckling.
D000818:Animals; D004372:Ducks; D006128:Growth / Q000187:drug effects*; D036341:Intercellular Signaling Peptides and Proteins; D009525:Niacin / Q000172:deficiency*; D011725:Pyridines / Q000494:pharmacology*
D036341:Intercellular Signaling Peptides and Proteins; D011725:Pyridines; D009525:Niacin; C023666:pyridine
GROWTH/effect of drugs on; NICOTINIC ACID/deficiency; PYRIDINES/effects