Comparative study of the oviduct of pre-laying and laying Egyptian balady ducks (Anas boschas domesticus) using morphometry, immunohistochemistry, scanning, and transmission electron microscopy : Abbreviated title: oviduct of pre-laying and laying Egyptian Balady ducks. - Abdelghany AA; Elmorsy SE; Abdelgawad M; Elsayed GA; Ebada S; Abdellatif AM (BMC veterinary research, 2025)