Histo-Morphological Comparative Investigations on the Ovary of Turkey (Meleagris gallopavo) in Relation with Age Level.

Document Type : Original Article


1 histology and cytology dept. zag. univ. Vet. MED.

2 Anatomy and Embriology dept. Vet. Med. Zag. univ.

3 Department of Histology and Cytology, Faculty of Veterinary Medicine, Zag. univ.


The current investigation was performed on 30 healthy slaughtered turkey, the samples were processed for the histo-morphological examination, turkey breeder at Sharqia province. Whole ovaries were dissected after catch directly. The morphological findings showed that, the ovaries of both ages of turkey were located in the Coelomic cavity with pale to dark yellow color and irregular shapes resembled to bunch of grapes due to different sized follicles on its surface.. All the recorded measures were statistically analyzed by mean ± standard error (SE). The histological structure of the ovary, At six months of age, .The ovary of turkey is composed of an outer cortex and inner vascular medulla, there was a clear separation between them. The cortex comprised ovarian follicles with different sizes. In addition, there were some large vacuolated cells known as thecal gland. Some small secondary follicles had vacuoles resemble (pre-antral follicle) in primates and other animals . The ovarian medulla represented the inner vascular part of the ovary. At one year of age, the ovarian follicles showed advanced stage of growth . The large growing follicles migrated to the ovarian surface and the covering ovarian epithelium become more thinner. Postovulatory regressed follicle that resembles corpus luteum was observed. At six months : Highly connective tissue fibers presented as collagen, elastic, reticular. Whereas connective tissue decreased at one year of age, so the age of laying and maturation in turkey is nearly at one year of age .


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