TY - SER AU - Derar,D.R.I. TI - The use of ultrasonography in studying the functional ovarian and uterine changes in female dromedary (Camelus dromedarius) in Upper Egypt KW - Camels KW - Upper Egypt KW - Ovarian Follicle KW - physiology KW - Physiology KW - Uterus KW - Diseases KW - Diagnosis KW - Ultrasonography KW - veterinary N1 - Includes references N2 - In order to monitor the ovarian and uterine echographic changes in the female camel during the ovarian activity, three dromedary heifers aged 4-5 years were assigned for this study. The animals were examined transrectally every third day prior to the breeding season and each second day after the commencement of ovarian activity using a pie medical 6-8 MHz scanner. Results of this study showed that follicular activities continued with overlapping follicular waves. Barley, ovarian activities were distributed equally in both ovaries. Prior to the breeding season, growth of many small follicles (<10 mm) was observed but the size of these follicles never exceeded 10 mm throughout the studied period and were subjected to atresia. The beginning of the ovarian activity (breeding season) was marked by the appearance of a follicle more than 10 mm at the time of clinical examination (rectal and ultrasonographic) UR - http://nile.enal.sci.eg/EALE/2003/AVMJ/4903/98/249.pdf ER -