title: An investigation of various egg-opening techniques for use in avian behavioral embryology.
mesh_terms: D000818:Animals; D001717:Birds / Q000196:embryology*; D002642:Chick Embryo; D004625:Embryo, Nonmammalian / Q000502:physiology*; D004626:Embryology; D005260:Female; D007185:Incubators; D008722:Methods; D009068:Movement; D010063:Ovum