الفهرس 
Introduction
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Abstract
The present study was carried out in the Laboratory of Physiology, Department of Animal Production, Faculty of Agriculture, Mansoura University in cooperation with Animal Production Research Institute, Dokki, Giza, Egypt. 440 ovaries of dromedary shecamel (Camulus dromedarius) were collected from Belbies Abattoir, Belbies City Sharkia Province, located in the north eastern part of the Nile Delta (30 oN), Egypt, during the period from December 2002 till March, 2004.The present work included two experiments. The first Experiment, aimed to investigate the effect of different seasons of the year on body thermoregulation (rectal temperature, respiration rate and pulse rate ),blood haematology (haemoglobin, packedcell volume, red blood cells and white blood cells counts), blood components (total protein, albumin, globulin, aspartate aminotransaminase :AST, alanine aminotransaminase :ALT, alkaline phosphatase :ALP, acid phosphatase :ACP), cholesterol, sodium, potassium, calcium, inorganic phosphorus, testosterone and oestradiol17<U+00DF> hormone) and ovarian activity (ovary weight, number of corpora lutea, number of oocytes and oocyte status) either in right or left ovary of the dromedary she <U+2013>camel . Histopathological examination of the right and left ovaries, were also studied. The second Experiment, designed to define the effects of various in vitro maturation media (TCM199, Hams F12, Basal and Hank media) on the maturation rate of shecamel oocytes during the breeding and nonbreeding seasons. In conclusion, shecamel (Camulus dromedarius) showed better body thermoregulation, blood components, hormonal profiles during winter and spring seasons (short daylight). Ovarian activity showed higher in the left than right ovary. Thus season and maturation media had important role in improve the in vitro fertilization (IVF) and embryo transfer program in the dromedary shecamel to enhance the fertilizing ability of shecamel during nonbreeding season, under Egyptian environmental conditions