The aim of this study was to evaluate histological differences of right and left ovaries in embryo. Histological and anatomical examinations conducted in ovaries in embryo of ostrich. The results showed that like many other birds, ovaries have unequal growth pattern in ostriches with larger left ovary and obvious cortex and medulla. Cortex consisted of germinal cells and germinal epithelium along with somatic cells. Cortex and medulla had been dissociated by connective tissue. No cortex was visible in right ovary and germinal epithelium has a thin layer. The cortex of the left ovary was obvious and consisted of ovogonia and secondary sex cords along with somatic cells. Lacunars channels, blood vessels and interstitial cell along with germ cells in both ovaries medulla were observed.

Keywords