الفهرس 
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Abstract
The study was carried out at maryout research station located 34 km west of alexandria that belongs to the desert research center (DRC), ministry of agriculture and land reclamation, and at the department of animal production, faculty of agriculture, alexandria university. The aim of the study was to improve the reproductive performance of she- camels under semi- arid conditions by using different regimens of progestins on controlling and synchronizing the ovarian activity and al program based on real- time ultrasonography of ovarian structures.