Niacin antagonists and chick development.
D000818:Animals; D002645:Chickens; D004622:Embryo, Mammalian / Q000187:drug effects*; D004625:Embryo, Nonmammalian / Q000187:drug effects*; D009525:Niacin / Q000031:analogs & derivatives; D009539:Nicotinic Acids; D011725:Pyridines / Q000494:pharmacology*
D009539:Nicotinic Acids; D011725:Pyridines; D009525:Niacin
EMBRYO/effect of drugs on; NICOTINIC ACID/related compounds; PYRIDINES/effects