Comparative Study of The Oviduct of Pre-Laying and Laying Egyptian Turkeys (Meleagris gallopavo) Using Morphology, Immunohistochemistry and Transmission Electron Microscopy | ||
| Egyptian Journal of Veterinary Sciences | ||
| Articles in Press, Corrected Proof, Available Online from 24 September 2025 PDF (2.51 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejvs.2025.413517.3041 | ||
| Authors | ||
| Aya Amin AbdElghany* ; Salah E. Elmorsy; Mesbah Abdelgwad; Galal Ahmed Elsayed; Safwat Ebada Morsy; Ahmed Abdelatif | ||
| Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt | ||
| Abstract | ||
| Egyptian turkey is a breed of domestic turkeynative to Egypt of economic importance. Data about structural and ultrastructural changes involving the oviduct of maturing and adult turkeys are limited. The present study investigated micromorphological, immunochemical and ultrastructural features of the oviduct of pre-laying and laying Egyptian turkeys. The oviduct included five parts: infundibulum, magnum, isthmus, uterus (shell gland), and vagina. The mucosa was folded longitudinally throughout the oviduct. The folds were further classified as secondary and tertiary folds in both the infundibulum and the vagina. Fold thickness apparently increased with age. In both the magnum and the uterus, theurface epithelium appeared pseudostratified, ciliated, and columnar, with apertures for the proprial glands. The proprial gland cells revealed spherical-shaped electron-dense granules that were abundant in laying ones. but sparse in non-laying ones. The surface epithelium of the oviduct of Pre-laying turkey's, particularly in the uterus, contained more intracytoplasmic vacuoles than laying turkey's. In contrast, the secretory cells of the surface epithelium appeared loaded with numerous electron-lucent granules localized towards their luminal side in laying turkeys.CD3and CD20 immunoreactive T and B cells were abundantly distributed across the epithelium and lamina propria.. In conclusion the present study described structural alterations in the oviduct linked with egg laying. This work advances our understanding of the parameters that influence bird oviduct health and productivity. | ||
| Keywords | ||
| Turkey Oviduct; Intraepithelial T cells; TEM; Ultrastructure | ||
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