000			03386cam a2200325 a 4500
003			EG-GiCUC
008			160529s2016 ua d f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.10.14.M.Sc.2016.El.D
100	0		_aElshymaa Ahmed Abdelnaby
245	1	0	_aDoppler ultrasonography during the estrous cycle and mid - gestation in the mare / _cElshymaa Ahmed Abdelnaby ; Supervised Refaat Sobhy A. Ragab , Adel A. Seida , Amal M. Aboelmaaty
246	1	5	_aإستخدام دوبلر موجات فوق صوتية فى دورة الشبق و فترة منتصف الحمل فى الأفراس
260			_aCairo : _bElshymaa Ahmed Abdelnaby , _c2016
300			_a177 P. : _bcharts ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Veterinary Medicine - Department of Theriogenology
520			_aThis thesis aimed to study dynamics of the color doppler blood flow of ovarian follicles, corpus luteum and uterus in mares during the estrous cycle. In addition, mid-pregnant mares were also examined by both color and spectral doppler modes to evaluate fetal and maternal development. Five non pregnant mares underwent daily doppler ultrasonographic examinations during estrous cycle and five pregnant mares were subjected to weekly examination with collecting blood samples. Estradiol, progesterone, leptin, nitric oxide and insulin like growth factor I were measured. Compared to the other follicles studied, the periovulatory follicle had significantly been increasing in power blood flow area, blood flow area away probe and colored pixels percent of the follicle area without antrum, but decreasing in colored blood flow area toward probe from day 6 till day 0. Days after ovulation significantly (P < 0.0001) affected each follicle blood flow, dimensions, estradiol (E2), NO, IGF 1 and leptin. Selection of the next dominant follicle started from day 4, but deviation completed on day 12 where the dominant follicle attained highest blood flow area away probe and percent of colored pixels of follicle without antrum, leptin, IGF 1 and NO with high power blood flow but with low blood flow area toward the probe. The corpus luteum diameter, circumference, area and volume, power doppler increased reaching the maximum values on day 11. The relatively high estradiol, leptin, IGF 1 and NO during growth phase compared to static one indicated a role enhancing angiogenesis and CL development. Duration between the week (14 and 25), eye ball orbital diameter, brain, utero placental thickness, uterine and umbilical blood flow increased but spectral doppler indices of both uterine and umbilical arteries decreased. In conclusion, blood flow during estrous and pregnancy could be used to predict the periovulatory follicle, corpus luteum development, the next dominant and subordinate follicles in addition to the normal uterine hemodynamics before and after ovulation as well as fetal and placental progress
530			_aIssued also as CD
653		4	_aBlood flow area
653		4	_aCorpus luteum
653		4	_aDoppler ultrasonography
700	0		_aAdel A. Seida , _eSupervisor
700	0		_aAmal M. Aboelmaaty , _eSupervisor
700	0		_aRefaat Sobhy A. Ragab , _eSupervisor
905			_aNazla _eRevisor
905			_aSamia _eCataloger
942			_2ddc _cTH
999			_c56697 _d56697