Visual system development in the duck embryo.
D000367:Age Factors; D000818:Animals; D001831:Body Temperature; D004372:Ducks / Q000196:embryology*; D004596:Electroretinography; D005071:Evoked Potentials; D009900:Optic Nerve / Q000196:embryology*; D010775:Photic Stimulation; D012160:Retina / Q000196:embryology*; D013477:Superior Colliculi / Q000196:embryology*; D014795:Visual Pathways / Q000196:embryology*