The developmental architecture of the crop of quail embryos (Coturnix coturnix): Morphometric, light and scanning electron microscopy.

Autor: Ali SM; Department of Anatomy and Embryology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt., Mohamed SA; Department of Anatomy and Embryology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt., Mahdy MAA; Department of Anatomy and Embryology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt.; Department of Anatomy and Histology, Faculty of Veterinary Medicine, King Salman International University, Ras Sudr, South Saini, Egypt., Madkour FA; Department of Anatomy and Embryology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt.
Jazyk: angličtina
Zdroj: Anatomia, histologia, embryologia [Anat Histol Embryol] 2024 May; Vol. 53 (3), pp. e13036.
DOI: 10.1111/ahe.13036
Abstrakt: The present study focused on the histogenesis of the crop in quail embryos. The developmental sequence was recorded from day 10 of incubation to the hatching day (17th day) by gross anatomy, morphometric analysis and by using light and scanning electron microscope (SEM). Grossly, the crop was distinguished as an enlarged pouch of the cervical oesophagus on the 12th day of incubation. Histologically, the development of the crop began on the 10th day of incubation. The muscularis mucosae was observed as a small, thin layer of myoblast cells on the 10th day, then it appeared as longitudinally arranged smooth muscle fibres with progression of the developmental age till hatching day. The submucosal layer was also observed on the 10th day, while the lamina propria, muscular layer (inner circular and outer longitudinal layers of smooth muscle fibre) and glandular primordia were detected on the 12th day. The epithelial cells of crop revealed affinity for PAS stain and AB-PAS on the 10th day of incubation till the 17th day, while the affinity for AB stain appeared on the 14th day of incubation. Additionally, the glandular cells showed the positive for AB, PAS and AB-PAS on the 12th day of incubation. SEM sections showed variable sizes of the openings of the oesophageal glands. In conclusion, the present study provided a detailed overview of the histogenesis of the crop in quail embryos.
(© 2024 Wiley‐VCH GmbH. Published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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