EXPERIMENTAL STUDY OF SUMMER STRESS IN RABBITS II- THE QUANTITATIVE AND QUALITIVE PATHOGENESIS OF SPERMATOGENIC CELL CYCLE IN RABBIT

Document Type : Research article

Authors

Depts. of Pathology, Gynaecology and Physiology, Faculty of Vet.med., Assiut University

Abstract

Comparing the Sertoli cell ratio, diameter and quality of the eight stages of seminiferous epithelial cycle in stressed rabbit to the normal control group. It was resistant to heat, type B sharply affected. In the process of spermatocytogenesis, there were three target stages to heat stress application. Stage three (pachytene transformation) and stage five ( zygotene to pachytene transformation) and the secondary sper matocytes. The zygotene cells were found to be heat resistant. Although the spermiogenesis were severely affected, type A rounded spermatids were unchanged. The processes of accumulation of dusty chromatin (Type B), the spermatid eleongation (Type C) and sper matid maturation (Type D) were severely damaged.