LIGHT AND ELECTRON MICROSCOPICAL STUDY OF THE EFFECT OF OESTROGEN ON THE CHICKEN OVIDUCT

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Abstract
Ovuducts from 20 one-day old chickens were used. Ten chickens were injected subcutaneously with 0.2 mg estradiol for 5 days, the remaining ones serving as controls. The chickens were fixed by an aortic perfusion with 2.5% glutaraldehyde in phosphate buffer, pH 7.2. The treatment with estrogen resulted in the following changes: general increase in oviduct length and thickness; differentiation of the epithelial membrane into 3 cell types: basal, apical and gland cells; increase in the number of cilia in the apical cell, probably due to a new production of cilia; formation of secretory granules in the vaginal epithelium as seen by light microscopy; formation of proteinlike secretory granules in the apical cell as seen by electron microscopy; increase in protein synthesis, observed as an augmentation of the endoplasmic reticulum.

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