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Prof. Gaber Ahmed Megahed Gaber

Professor, Department of Theriogenology , Faculty of Veterinary Medicine, Assiut University

C.V Details




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Current Address

:

Department of Theriogenology-Faculty of Veterinary Medicine-Assiut University 71526-Assiut - Egypt

Office Tel.

:

٢٣٢٣٧٤٠ - ٢٠٦ داخلي

Home Tel.

:

002/088/2297747

Mobile No.

:

01001658725

Fax No.

:

0020882366503

E-Mail

:

gabermegahed@vet.au.edu.eg
gabermegahed@Yahoo.com

google scholar link

:

https://scholar.google.com/citations?user=7qZ0-XEAAAAJ&hl=en
Educational Qualifications:
  • Ph. D., Faculty of Veterinary Medicine, Assiut university, 1991
  • M. Sc., Faculty of Veterinary Medicine, Assiut university, 1986
  • Professor, Department of Theriogenology , Faculty of Veterinary Medicine, Assiut University, 2003
  • Associate Professor, Department of Theriogenology , Faculty of Veterinary Medicine, Assiut University, 1998
  • Lecturer, Department of Theriogenology , Faculty of Veterinary Medicine, Assiut University, 1991
  • Assistant Lecturer, Department of Theriogenology , Faculty of Veterinary Medicine, Assiut University, 1986
  • Demonstrator, Department of Theriogenology , Faculty of Veterinary Medicine, Assiut University, 1982

Past Positions :

  • Head, Department of Theriogenology , Faculty of Veterinary Medicine, Assiut University
  • Vice Dean for Education and Student Affairs, Faculty of Veterinary Medicine, Assiut University, sinceOctober 2010
  • Vice Dean for Education and Student Affairs, Faculty of Social Work, Assiut University, sinceOctober 2011
  • Research fields:
    Reproduction , Physiology of animal reproduction , Embryo transfer , IVF , Biotechnology of animal reproduction

    Publications:

    1 - •M.S. Rawy∗, R.I. Derar, T.M. El-Sherry, G.A. Megahed, Plasma steroid hormone concentrations and blood flow of theovarian structures of the female dromedary (Camelusdromedarius) during growth, dominance, spontaneousovulation, luteinization and regression of the follicular wave., Animal Reproduction Science, 148 , 137–144, January, 2014
    2 - Mahmoud R. Abd Ellah, Derar R.I. Derar, Gaber A. Megahed , Blood Constituents of Buffaloes in Response to Prognosis and Duration of Uterine Torsion, Journal of Animal and Veterinary Advances , 13, 217-222, 2014
    3 - Gaber A. Megahed, Mahmoud R. Abd Ellah, Ahmed Abdel-Rady, Comparative biochemical studies on natural Trypanosoma evansi infection in she-camels, Comparative Clinical Pathology, Springer, 21, 1121-1124, http://www.springerlink.com/content/a1k8788442561246/, 2012
    4 - R. Derar1,3, H.A. Hussein1, S. Fahmy2, T.M. El-Sherry1, G. Megahed1, The effect of parity on the efficacy of an ovulation synchronization (Ovsynch) protocol in buffalo (Bubalus bubalis), Anim. Reprod, March, 2012
    5 - •M.S. Rawy, D.R. Derar, T.M. El-Sherry and G.A. Megahed, Characterization of Follicular and Luteal Blood Flow in Female Dromedary Camel Induced to Ovulate Using GnRH Analogue , Journal of Camel Practice and Research, Vol 19 No 2, p 1-7, January, 2012
    6 - Taymour M.Elsherry, Motozumi Matsui, Katsuyo Kida, Akio Miyamoto,G.A. Megahed, Shehata H. Shehata, Yoh-ichi Miyake, 1- Ovarian stimulation with follicle-stimulating hormone under increasing or minimal concentration of progesterone in dairy cows. , Theriogenology, 73, ) 488-495, 2010
    7 - T.M. EL-Sherry , M. Matsui , K. Kida , A. Miyamoto , G.A. Megahed , S.H. Shehata , Y-I. Miyake, Ovarian stimulation with follicle-stimulating hormone under increasing or minimal concentration of progesterone in dairy cows, Science Direct, No. 8, 2009
    8 - Megahed, G. A., Anwar M.M., Effect of GnRH administration on buffalo-bull's and ram's semen quality and subsequent fertility in summer, The 24th Meeting of Saudi Biological Society, Biotechnology Reality and Application, Madinah Almunawwarah, at Taibah University Rabia Althani,, April, 2009
    9 - Megahed, G. A., Derar, D. R., Hussein, H. A. , Mahmoud, A.L.E, Genital mycotic infection of repeat breeder mares and field trials for its treatment, Assiut Vet.Med, Vol. 55 - No. 122, pp. 360 - 369, 2009
    10 - Hussein H.A., Derar, R., Fahmy S., EL-Sherry T., Megahed, G., 3-Ovarian response and progesterone profile during Ovsynch Protocol in Heifers and Pluriparous Buffalo-cows (Bubalus bubalis). , 10 Scientific congress of Egyptian Society for cattle diseases , 2009
    11 - G.A. MEGAHED; D.R. DERAR; H.A. HUSSEIN; and A.L.E. MOHMOUD, GENITAL MYCOTIC INFECTION OF THE REPEAT BREEDER MARES AND FIELD TRIALS FOR ITS TREATMENT , Assiut Vet. Med. J., Vol. 55, No. 122, July, 2009
    12 - Megahed, G.A., Anwar M.M., Wasfy S.I., Hammadeh M.E, Influence of heat stress on the cortisol and oxidant-antioxidants balance during estrus phase in buffalo-cows: Thermo-protective role of antioxidant treatment, Reprod. Domest. Anim, Vol. 43 - No. 6, pp. 627 - 677, 2008
    13 - Megahed, G.A, Sayed, A.N., Radwan,M.E., Abdel All, Th.S, Effect of feeding cottonseed by different concentration upon reproductive performance and antioxidant vitamins in rams, 9th Scientific Congress, Egyptian Society for cattle Diseases, pp. 100 - 106, December, 2007
    14 - Megahed. G.A , Etman ,A.H.M, Effect of Agricultural By-products in Ration on Production and Reproductive Performance of Saidi rams, ACTA VET. BRNO, vol. 75, pp. 227 - 234, 2006
    15 - Megahed. G.A, Alghandour, S.E.M. ,Othman, R.H. , El-Zohery, The relationship between oxidant/antioxidant imbalance and postpartum fertility in cattle, Assiut Vet.Med, vol. 52 - No. 111, pp. 226 - 240., 2006
    16 - Megahed, G.A Dowidar,Y.A, Awad-allah,M.A , Ibtisam, M.H.Al-Milleegy, Improvement of productive performance of Rahman rams under oxidative stress, Basic Appl.Physiol, pp. 39 - 48, 2005
    17 - Megahed, G.A., A.KH.Abdel-Razzek , Anwer, M.M , Saida,A.Ali , Role of antioxidant on liquid and frozen buffalo –bull semen and their effect on plasma membrane integrity, Minufyia Vet, Vol. 2, pp. 265 - 285, April, 2004
    18 - Megahed. G.A, Assma,A.A.Hussein ,Sohair,Z.Hussein , Abd Al-Azeem,A.W, Campylobacteriosis in repeat breeder buffalo –cows: its prevalence ,treatment and subsequent fertility in Assiut governorate, Assiut Vet.Med, vol. 50 - No. 100, pp. 259 - 270, 2004
    19 - Megahed G.A. Anwar M.M. Hossam El-Din M. Omar, Possible role of oxidants/antioxidant imblance on postpartum ovarian resumption in dairy cows, Egypt.J. Basic Appl. Physiol., Society of physiological Sciences and their applications, 2, 243-261, 2003
    20 - Gaber A.Magahed Mamadouh M. Anwar Hossam El-Din M Omar, Coexistence of high levels of cortisol and oxidative stress as an indicator in retained placenta in buffalo-cows , Zag.Vet.J., Zag.Vet.Med., 31 (1), 131-140, 2003
    21 - Megahed. G.A , Anwar M.M , Omar ,H.M, Possible role of oxidant/antioxidant imbalance on repsturum ovarian resumption in diary cows, Basic and Appl. Physiol, vol. 2 - No. 2, pp. 243 - 261, 2003
    22 - Megahed. G.A., Etman,A-H.M , Awad Allah,M.A, The influence of Antioxidants (Selenium and Vitamin E) on Daily Body Grain ,reproductive performance and subsequent fertility of Rams, Assiut Vet. Med, vol. 92, pp. 262 - 286, 2002
    23 - Megahed. G.A , Anwar M.M. , El-Ballal,S.S, Superoxide Dismustase Activity Nitric Oxide and lipid peroxide production and it's relation to apoptotic changes and serum progesterone hormone level during physiological lifespan of buffalo's corpora lutea, Minufyia Vet, Vol. 2, pp. 270 - 285, April, 2002
    24 - Megahed, G.A., AKH. Abdel- Razek , Daghaash, H.A, Influence of Pre- mating Administration of GnRH with the CL Activity and Subsequent Ferity in Buffaloes during summer in Upper Egypt, 13th Annual Congress, Egyptian Society for Animal Reproduction and Fertility, vol. 22 - No. 26, pp. 41 - 50, January, 2001
    25 - Osman, A.M., Shehata, S. H., Megahed, G.A, Super ovulatory response and Embryo recovery in buffalo heifers and cows treated with FSH (Super- ov) and LH, Vet.Med, vol. 49, pp. 483 - 491, 2001
    26 - Mamdouh, M. Anwar and Megahed, G.A , The Involvement of Nitric Oxide on the Growth of Follicles of Egyptian buffalo-cows: Possible Relation with Melatonin and Prostaglandin F2x, Bull. Egypt.Soc. Physiol. Sci., 19(2), 72-86., 1999
    27 - Megahed. G.A. , Daghash,H.A., Effect of Prepartum Injection of Antioxidants (Selenium and Vitamin E) on Resumption of Postpartum Ovarian Activity and Subsequent Fertility of Ewes, Vet. Sci, vol. 15 - No. 4, pp. 839 - 854., October, 1999
    28 - Mamdouh, M. Anwar and Megahed. G.A, Changes in the level of melatonin in Egyptian buffaloes during estrous cycle and treated inactive ovaries, Assiut Vet. Med. J., Vol. 37 (74), Vol. 37 (74), 62-77, 1997
    29 - Mamdouh, M, Anwar; Megahed, G.A.; Thorya, S. EI-Deeb and Shehata, S.H, The effect of melatonin on the bull liquid semen and enzymatic release in seminal plasma, Assiut Vet. Med. J, Vol. 35 (69), 42-63., 1996
    30 - Megahed, G.A , Kobeisy, M , Anwar, M.M, Effect of exogenous oxytocin on the life-span of corpus luteum in Egyptian buffaloes, Bull. Egypt. Soc. Physiol. Sci, Vol. 16 - No. 1, pp. 1 - 13, 1996
    31 - Megahed, G.A, The influence of season and embryo stages on pregnancy rates of frozen-thawing cow embryos, Indian Vet. J, 146-149, February, 1995
    32 - Afify,O.S , G.A.Megahed , S.H.Shehata , Effect of ascorbic acid on Rabbit semen picture and its relation to age and breed under ambient temperature, 7th Annual Congress of Egypt. Soc. Anim. Reprod, pp. 219 - 230, 1995
    33 - Megahed, G., The influence of season and embryo stages on pregnancy rates of frozen-thawing cow embryo, Indian Vet. J, February, pp. 146 - 149, 1995
    34 - O.S.Afifi, G. A. Megahed and S. H. Shehata, Effect of ascorbic acid on rabbit semen picture and its relation to age and breed under high ambient temperatures, The Egyptain Society for Animal reproduction and fertility, seventh annual congress, 21-23 January, 1995, Egypt., 219-229, January, 1995
    35 - Megahed, G.A. , Kobeisy,M, Synchronization of estrus and calving rate in Egyptian buffaloes with PGF2a and Oxytocin". 6th Scientific Congress, 20-22 Nov. 1994, Fac. Vet. Mcd, 6th Scientific Congress, pp. 224 - 230., November, 1994
    36 - A.H.Zaghloul, O.S.Afifi and G. A.Megahed, Effect of prostaglandin E1 (PGE1) on semen picture and fertility of male rabbits., The Egyptain Society for cattle diseases, second sci., congress, 5-7 Dec., 1993, assuit, Egypt, 140-146, December, 1993

    Supervisions :

    1- Mohamed Ali Abdel Ghani, Use of Real-Time Ultrasonography for Diagnosis of Infertility Problems in Egyptian Native Cattle and Buffaloes, M. Sc, 25 December 2005
    Supervisors : Ahmed Abdel-Rahim Mohamed Farrag, Jaber Ahmed Mojahid, Ahmed Mostafa Ali
    2- Hamdy Salah Hasab Elnaby, Non-hormonal (herbal) therapy for treatment of post partum anestrum in Egyptian buffaloes, Ph. D., 31 May 2015
    Supervisors : Prof. Dr. Gaber A Megahed Prof. Dr. Abdel-Razek Kh. Abdel-Razek Prof. Dr. Hassan A Hussein
    Number of courses0 course