Comparative ultrastructure characterization of the oropharyngeal cavity floor (lower beak, tongue, laryngeal entrance) of the newly hatched domestic duck (Anas platyrhynchos domesticus) and Muscovy duck (Cairina moschata)

Mai A Al-Mosaibih, Eman Fayad, Ramadan Kandyel, Karam Roshdy, Diaa Massoud, Ahmed G. Nomir, Hazem Hamoda, Eman Kamal Khalil, Ahmed I. Abo‐Ahmed, Attalla F. El‐kott, Mohamed M. A. Abumandour