IDOSI Regional Representative

Prof. Dr. Wahid M. Ahmed,

Personal Data:

Name : Wahid Mohamed Mohamed Ahmed.
Date of birth : November 11th, 1957.
Place of birth : Cairo, Egypt.
Nationality : Egyptian.
Religion : Moslem.

Marital status : Married and has a son and a daughter.

Contact Details: 

Home address: 13 Al Omda El-Gedid St., Elharam, Giza, Egypt 

Home phone: 33856575 

Cell Phone: 01008606464 – 01119697166 

Professional address: Department of Animal Reproduction &AI, National Research Center, Postal code: 12622, Dokki, Giza, Egypt 

Tel.: +202 33370931

Fax: +202) 33370931

Email: & 

NRC Scholar : 

Scopus Author ID: 17344970800 


Research Gate: 

Google Scholar: 


Research Professor , Department of Animal Reproduction and Artificial Insemination, National Research Center, Cairo, Egypt. 


• B.V.Sci. May,1980.,Cairo Univ.
• M.V.Sci. June 1987, Cairo Univ.
• Ph.D.Vet. March, 1991 Cairo Univ.


1-Veterinary Officer: April 2nd-1981 - September 30th, 1983, The Department of Veterinary Services., Ministry of Defense , Egypt.

2-Research Scholar: October 1st, 1983 – September 14th, 1987, The Department of Animal Reproduction & AI, National Research Center, Cairo, Egypt.

3-Research Assistant: September 15th October 19th, 1987, The Department of Animal Reproduction &A.I., National Research Center, 
Cairo, Egypt.

4-Assistant Researcher: October 20th, 1987 – April 26th, 1991, The Department of Animal Reproduction &A.I., National Research Center, Cairo, Egypt.

5-Researcher: April 27th, 1991- May 29th, 1996, The Department of Animal Reproduction &A.I., National Research Center, Cairo, Egypt.

6-Assistant Research Professor: May 30th, 1996 - June 24th 2001, The 
Department of Animal Reproduction &A.I., National Research Center, Cairo, Egypt.

7- Research Professor: June 25th, 2001 till 18 April 2010, The Department of Animal Reproduction & A.I. , National Research Center, Cairo, Egypt.



8- Head of  the Department of Animal Reproduction &A.I., National Research Center, Giza, Egypt since 19 April  2010 till 21 April 2016

9- Research Professor ,  Department of Animal Reproduction &A.I., National Research Center, Giza, Egypt since 22 April 2016


• General field: Animal Reproduction & AI.
• Fine field: Reproductive Hygiene.


1-Factors affecting ovarian activity in farm animals with emphasis on “Ovarian inactivity”.

2-Clinicopathological changes in biological fluids during different Reproductive phase in farm animals.

3-Pathological alterations in genital organs of farm animals.

4-Application of biotechnology for improving reproductive efficiency in Farm animals.

5-Effect of environmental pollution on reproduction in farm animals.

6- Safety and occupational health for personnel working in research laboratories.

7- Scientific publication in periodical journals and congresses 



1- Egyptian Veterinary Medicine Association (Since 1983).

2- Egyptian Veterinary Association for Buffaloes Development (Since 1985).

3- Egyptian Association for Animal Reproduction and Fertility (Since 1988).

4- Egyptian Association for Comparative Pathology and Clinical Pathology (Since 1992).

5- Egyptian Association for Applied Science (Since 1994).


1- Unit of Improving Reproduction in Farm Animals- National Research Center, 2002 - 2007.

2- Unit of Poultry Wealth, National Research Center, 2002-2005

3- Egyptian Society for Improving Buffaloes, 2004

4- Safety and occupational health council, National Research Center, 2005

5- Asian Network of Scientific Information (ANSI)

6- Academic Journals, USA, 2007

7- Regional Representative of the International Digital Organization for Scientific Information (IDOSI), Pakistan .

8- Editor in chief of International Scientific Journals:

1. Academic Journal of Animal Diseases 
2. Academic Journal of Nutrition 
3. Academic Journal of Oral and Dental Medicine
4. Acta Parasitologica Globalis
5. African Journal of Basic & Applied Sciences
6. American-Eurasian J of Agricultural & Environmental Sci 
7. American-Eurasian Journal of Scientific Research
8. American-Eurasian Journal of Toxicological Sciences
9. Applied Journal of Hygiene 
10. British Journal of Poultry Sciences
11. European Journal of Applied Sciences 
12. Global Journal of Biotechnology & Biochemistry
13. Global Journal of Environmental Research 
14. Global Journal of Molecular Sciences
15. Global Journal of Pharmacology 
16. Global Veterinaria 
17. International Journal of Basic and Applied Virology
18. International Journal of Clinical Pathology
19. International Journal of Genetics
20. International Journal of Microbiological Research 
21. Journal of Reproduction and Infertility 
22. Research Journal of Zoonosis
23. World Applied Sciences Journal 
24. World Journal of Alternative Medicine
25. World Journal of Computer Sciences
26. World Journal of Dairy & Food Sciences
27. World Journal of Environmental Pollution
28. World Journal of Fish and Marine Sciences 
29. World Journal of Nursing Sciences
30. World Journal of Zoology 

9- Editorial Member and referee in 14 International Scientific Journals: 

1. World Journal of Agricultural Scioences
2. American-Eurasian Journal of Scientific Research 
3. Journal of Biological Sciences
4. Pakistan Journal of Biological Sciences
5. Journal of Applied Sciences
6. International Journal of Dairy Science .
7. Asian Journal of Animal Sciences
8. Asian Journal of Agricultural Research
9. Asian Journal of Animal and Veterinary Science 
10. Research Journal of Obestitric and Gynaecology
11. African Journal of Microbiology Reseach.
12. African Journal of Food Science.

10- Member of the Permanent Scientific Committee for Staff Promotion, National Research Centre (2008 - )


1-Congresses of Egyptian Veterinary Medicine Association, every two years (Since 1983).

2-The first World Congress for Buffaloes Development (December 25- 30th, 1985, Cairo ).

3- Annual Congresses of Egyptian Association for Animal Reproduction and Fertility (Since 1988).

4- Cairo First International Meeting on Working Animals (April 13- 16th, 1992, Cairo, Egypt).

5- Annual Congresses of Egyptian Association for Comparative Pathology and Clinical Pathology (Since 1992).

6- The Third International Meeting on Biotechnology in Animal Reproduction (November 2- 6th, 1996).

7- The Scientific Congress of the Faculty of Veterinary Medicine, Cairo University every two years(since 1996). 

8-The Scientific Meeting of the Egyptian Association for Buffaloes Development about “Infertility in Buffaloes”(July 3rd, 1997, Giza, 

9- The Scientific Meeting of the Egyptian Association for Buffaloes Development about” Problems of Veal Production”(November 11th, 1997, Fayoum, Egypt).

10-The scientific symbolism on” Problems of Zinc Deficiency in Egypt and its Effect on Public Health”. (October 22nd, 1998, National Research Center, Cairo, Egypt).

11-The Scientific Meeting of the Egyptian Association for Buffaloes Development about” Infectious Diseases of Buffaloes”(November 7th, 2000, El Mansoura, Egypt).

12-The Scientific Meeting of the Egyptian Association for Buffaloes Development about” Infectious Diseases of Buffaloes characterized by vesicles formation”(Aprile 23th, 2001, Zagazig, Egypt).

13-The Scientific Meeting of the Egyptian Association for Animal Reproduction and Fertility about” Selection of bulls for A.I. purposes and breeding policy”(June 14th, 2001, Faculty of Veterinary Medicine-Cairo University, Egypt).

14- The Scientific Meeting of Arab Society of Environment about “ Usage of rice straw” (March, 3rd ,2002, National Research Center)

15- The Scientific Meeting of the Egyptian Society for treating toxicity and environmental diseases about “Treating of toxicity”(1st February , 2003, National Research Center).

16- The Scientific Meeting of the Egyptian Society for Comparative and Clinical Pathology about “ Fundamentals of Tissue Array , Preparation and Applications” (5th February, 2003, National Research Center, Animal Health Institute, Dokki ).

17- The Scientific Meeting of the Egyptian Society for Buffalo Developing about : “Factors Affecting Reproduction in Buffaloes”(7th May,2003, Veterinary Service Organization, Banha ).

18- The Scientific Meeting about” SARS, Severe Acute Respiratory Syndrome ”(24th May, 2003-the National Research Center, Dokki ).

19- The Scientific Meeting about “ Rift Valley Fever, a danger threat man and animals”( 9th March, 2003, the National Research Center Dokki )

20-The International Conferences of the Veterinary Research Division, (since 2004-National Research Center) 

21- The Scientific Meeting about “Fowl Influenza” (10 March 2004- National Research Center)

22- The Scientific Meeting about "Spring free from diseases"( 4th April 2004 National Research Center) 

23- The Scientific Meeting about”Real Time PCR”(30 May 2004- National Research Center)

24- The Scientific Meeting about” Scientific Research and Development of Technology” (22 May 2004- Alexandria Library)

25- The Scientific Meeting about”Acupuncture “(29 June 2004-National Research Center)

26- Workshop on "Laser chemistry and applications to materials and biomedical researches"-(205th October 2004-10-03-National Research Center )

27- The Scientific Meeting about "Application of biotechnology for diagnosis of diseases“(18th December 2004-National Research Center)

28- The Scientific Meeting about "The problem of liver flukes (Fascioliasis)in El- Wahat El-Baharia"(27th December, 2004 (Egyptian Society for Buffalo Development in Association with The Veterinary Service Department- Giza and Faculty of Veterinary Medicine- Cairo University, Giza,).

29- The Scientific Meeting about" Technical writing of research projects" ( 8th December 2005 -National Research Center)

30- The Scientific Meeting about "DNA probes and insitue hyperdization" (8th March 2006 -National Research Center)

31- The Scientific Meeting about" Use of PCR for diagnosis of tumors " ( -National Research Center)

32- The Scientific Meeting about" Ethics of Scientific research " ( November 2006 - National Research Center).

33- The 3rd International Conference of Scientific Research and its Applications – Cairo University, 3-5th May,2007, Cairo, Egypt.

34- The Scientific Meeting about Environmental Pollutants and its Relation with Genetic Deformities” - Egyptian Society for Buffalo Development in Association with Faculty of Veterinary Medicine- Cairo University, Giza, 7 December, 2007

35- The Scientific Meeting about The Save Handling with Laser- National Research Centre, 18/11.2008

36- The Scientific Meeting about “Sires Selection in Buffaloes” - Egyptian Society for Buffalo Development in Association with Institute of Animal Reproduction, Giza, 18 March, 2009

37- The Scientific Meeting about Risk Management. National Research Centre, 19/1.2010

38- 9th National Conference of Biochemistry and Molecular Biology and Their Role in Development and Environment. 4-6-March 2012- Egyptian Academy of Science And Technology, Ain Shams Univer5sity, Cairo, 4-6 March 2012

Coordinator of Veterinary Field Trips to areas deprived from ideal veterinary services on Monday from each week (NRC – Egyptian Organization for Veterinary Services) from 2004 tell now

Patents :
A Preparation for Treatment of Ovarian Inactivity in Large Animals: “Ovitone”. No27/2012 [632611] in 4.1.2012


1-Advanced English Program ( N RC, 1984 ).

2-Computer Sciences (Introduction Basic, Cairo Univ., 1988).

3-Application of Radioactive Isotopes and Protection from its Danger 
(Middle East Institute for Arab Countries, Cairo, Egypt, 1990).

4-Magnetic Resonance (Egyptian Academy of Science & Technology, 1994).

5-Electron Microscopy ((Egyptian Academy of Science & Techn ology, 1994).

6-Marketing of Research Services and Technology Transfer (NRC, 1995).

7-Application of Transmission and Scanning Electron Microscopy, Technique and Interpretation (Assiut Univ., 1998).

8-Immuno Electrophoresis of Proteins in Biological Fluids ( NR?C,1998).

9- Applications of Polymerase Chain Reaction (PCR) in Botany, Zoology and Medicine (NRC, 2000).

10- Veterinary Reproductive Ultrasound Scanning: Physics, Principles and Applications Protocols in farm Animals ( Anim. Reprod. Inst.,El Ahram, 2000).

11-Statistical Packages for Social Sciences (SPSS),( National Research Center, 2000 ).

12- Scientific Photography Processes , National Information and Documentation Center in corporation with Academy of Scientific Research and Technology(2001).

13- Laboratory Biosafety and Biosecurity Workshop, held by Global Health and Security Initiative, and International Biological Threat Reduction, USA and Egyptian Academy of Scientific Research and Technology, Cairo, Egypt, 3-5th April,2007 

14-The International Workshop on Industrial Biotechnology, July 3 -4, 2010, Cairo , Egypt. Ministry of Scientific Research and the Academy of Scientific Research and Technology in the Frame of the French Egyptian Year of Science and Technology, 2010. 

15- The Fifth Session For National Research Centre Leaders. Institute of Strategic Sciences , Egypt . 5-8 January , 2011.

16- Principals of ISO 9001:2008. 16 – 17th May 2011, National Research Center.

17- Strategy Planning for Universities and Research Organizations, Fraunhover Institute, IPK, Germany and Ministry of higher5 education and scientific research, Egypt, 10-11th July 2011, cairo, Egypt.

18-Quality and Accereledition 12 December 2011, National Research Center.

19-Chemical Risk Management Training, 21-22th November 2012, Sandia National Laboratories, USA and National Research Centre, Egypt

20- Tuberculosis, Current Situation and Challenges, 7 April 2013, National Research Center. 

21- Role and Application of Biosafety to protect the workers and the environment from exposure to biological and chemical risks, 8-9th April, 2013, National Research Center. 


1- Breeding and management of large farm animals, National Research Center ( 9th August – 29th October2003).

2- Safety and occupational health (Safe handling of laboratory animals) for Master degree students - once a month since July 2005 – National Research Centre.

3- Complete safe managing of research laboratories(Safe handling of laboratory animals) for external researchers ( April and November, yearly since 2006 – National Research Centre)


1- Award The National Research Center Prize of Scientific Promotion in Agriculture, Biology and Animal Production Sciences (Animal Reproduction &A, I., 1994/1995).

2- Award The National Research Center Prize of Research Outputs (2009).

3- Certificate of honor from IDOSI, 2011

4- Award The National Research Center Prize of Research Outputs (2011).

5- Award The National Research Center Prize of Research Outputs (2012). 

6- Award The National Research Center Prize of Research Outputs (2013). 

7- Award The National Research Center Prize of The highest h-index (2014). 

8- Award The National Research Center Prize of Research Outputs (2015). 


Short exchange visit to The Department of Animal Sciences, Aberdeen University, Scotland, U.K. (Agreement between the British Royal Society and The Egyptian Academy of Science and Technology) during the period from 4-13th March 1997.



1- Rural Development (1989 – 1992).
Sponsored by Giza Governorate.

2- Effect of Minerals and Trace Elements on the Health of Man and 
Animals (1991-1993).
Sponsored by the Egyptian Academy of Science and Technology.

3- In Vitro Fertilization and Embryo Production in Farm Animals. 
Sponsored by The National American Research Program (NARP)

4- Evaluation of Reused Wastewater on Public Health (1994-1996).
Sponsored by the Egyptian General Organization for Great Cairo 

5-Application of Modern Farming Methods for Improving Land and
Animal Production in El Wahat (1999- 2000).
Sponsored by the Egyptian Academy of Science and Technology

6- Applications of Biotechnology for Improving Animal 
Reproduction (2002 – 2004)
Sponsored by Italian Science Council and the Egyptian Academy of Science and Technology

7- Embryo Transfer in Buffalo (2002 – 2004)
Sponsored by Italian Academy of Science and the Egyptian Academy of Science and Technology

8- Improving the fertility in cows and buffaloes during heat stress (2006 – 2009).
Sponsored by US- Egypt joint technology fund

9-Molecular mechanism of pregnancy recognition in two humped camel (Camelus bacterianus)and dromedary camel (Camelus dromedaries) 2008 – 2011)
Sponsored by Ministry of Higher Education and Scientific Research (China – Egypt bilateral agreement)

10- The possible role of transcription factors in controlling developmental competence of in vitro produced buffalo and bovine embryos ( 2007 – 2011)
Sponsored by US– Egypt collaborative project ( STDF)

11- Cryopreservation of oocyte and embryos of Egyptian buffaloes (2011 -2013)- gyptiam Hungarian Coopration Agrement


Sponsored by the National Research Center.

1-Agricultural Developments in the New Reclaimed Areas (1988-1996).

2-Shortening of Postpartum Period in Farm Animals (1992-1995).

3-Increasing Productive and Reproductive Efficiencies of Camels(1994-1995).

4-Studying the Effect of Environmental Pollution with Heavy Metals and its Relation to Health and Reproductive Efficiency in Farm Animals (1995-1998).

5-Effect of Agriculture Pollutants on Reproductive and Productive Efficiencies of Farm Animals (1995-1998).

6-Improving the Reproductive Characteristics of Egyptian Sheep and Goats (1995-1998).

7-Ovarian Inactivity in Farm Animals (1996-1998).

8-Pathological Studies on the Effect of Antigungal on Fertility in Farm Animals (1996-1998).

9-Shortening of the Prepubertal Period in Buffaloes. (1996-1998).

10-Application of Biotechnology for Improving Reproductive Efficiency of Farm Animals (1997-1998).

11- Embryos and Fetal Mortalities in Farm Animals (1998- 2001).

12-Effects of Some Environmental Pollutants on Reproduction in Farm animals (1998-2000).

13-Further Studies on Ovarian Inactivity in Farm Animals(1998- 2000).

14-Application of Immunogenetics for Evaluation of Fertility in Goats (1998- 2001).

15-Effect of Parasitic Infestation on Fertility in Farm Animals. (1998-2000).

16-Production of Economic Milk Replacers for Suckling Calves (1998-2001).

17-Improvements of Semen Characteristics of Small Ruminants. (1998-2001).

18-Studies on Harmful Plants Found in Barseem Field(1999- 2000).

19-Immunogenetic characterization of small ruminants with special reference to fertility problems(2001-2004.

20-Further studies on improvements of semen characteristics of male Baladi goats (2001-2004).

21-Applications of some prophylactic measures to decrease calving associated problems with emphasis on postpartum ovarian activity in cattle (2002 – 2003)

22- Studies on Tuberculosis and Brucellosis in goats in Egypt (2002 – 2005).

23-Applied Studies to Overcome some Common Problems in Buffaloes with Special Reference to Ovarian Inactivity (2004 – 2007).

24- Application of Recent Biotechnological Techniques to Improve Fertility and Productivity of Buffaloes During Summer ( 2007 – 2010)

25-Application of biotechnology to improve reproductive efficiency in farm animals (2008 – 2010).

26- Improvement of general health and immune status of small ruminants using antioxidants (2010- 2013)

27- Epidemiological and biotechnological approach of toxoplasma gondii veriulent local Egyptian isolates concerning public health impact(2010- 2013)

28- Genetic selection and massive embryo production for improving fertility and milk production in buffalo (2010- 2013)

29- Development of South Sinai (2013-2016) 

30- Production of locally prepared diagnostic kits for diagnosis of cryptosporidiosisi in human and animals (2013-2016)[ 1003000 S] 

Participated in supervision on the following thesis:

A- M aster Thesis

1- Hegab A.O (1991): “Studies on in vitro fertilization in cattle and buffaloes”.- M. V. Sci. (Theriogenology), Cairo University, Egypt.

2- El-Sheriff, Y.A. (1992): “Some productive aspects in sheep suffering from coccidiosis.” M.V. Sci. (Infectious diseases), Cairo University, Egypt.

3- Shata, F.S. (1992): “Effect of some insecticides on cellular and biochemical constituents of blood in relation to fertility in poultry”. M. V. Sci. (Clinical Pathology), Cairo University, Egypt.

4- Rady, M.M. (1992): “Chemical and technological studies on edible oil.” M. Agric. Sci.(Food Technology), Tanta University. , Egypt.

5- El-Magazy, F.M. (1993):“Studies on tissue cholinesterase activity after Trichinella spiralis infection in the albino rats and following treatment with some antitrichinella drugs.” M.Sci. (Zoology), Cairo University, Egypt.

6 -Khalil, A.M. (1995):“Studies on downer cow syndrome in dairy cattle”. M.V.Sci. (Veterinary Medicine), Alex. University , Egypt.

7- El-Sisy, G.A. (1997): “Effect of season and contact with females on semen characteristics and testosterone hormone level in goats”. M. V. Sci. (Theriogenology), Cairo University, Egypt.

8- El-Gier, A.M. (1997): “Biochemical studies on some tumor markers and their diagnostic and prognostic values in breast cancer”. M. Sci.(Biological Chemistry), Cairo Univ. , Egypt.

9- El-Hanafy, A.A. (1998): “The effect of adding some vitamins and minerals on the performance of lactating buffaloes.” M. Agric. Sci. (Animal Nutrition). Ain Shamas University. Egypt.

10- Mostafa, A. S. (1998):“Pathological studies on infertility in sheep with special reference to nutritional deficiency.” M.V.Sci. (Pathology), Cairo University , Egypt.

11- Mohamed, A.A (2000): "Sexual behavior, semen characteristics and plasma testosterone profile in local cattle bulls with emphasis on seasonal variations.” M.V. Sci. (Theriogenology), Cairo University, Egypt.

12- Ibrahim, S.R.( 200 ): "Some clinicopathological studies on delayed puberty phenomenon in buffalo heifers". M. V. Sci. (Clinical Pathology) , Cairo University, Egypt.

13- Hozein, H.F.(200): “Some Physiological Changes Associated with Exposure to Air Pollution in Local Cows”. M. V. Sci. (Physiology) , Cairo University, Egypt.

14- Saber, Y. H, ( 2013 ): Some studies on ovarian inactivity in cattle. M.V. Sci. (Theriogenology), Cairo University, Egypt. 

Ph D Thesis

1- Abu- Zina, H.A. (1996): “Studies on deficiency of trace elements in livestock”. Ph. D. Vet. (Internal Medicine), Cairo University, Egypt.

2 - EL-Khadrawy, H.S. (1997): “Biochemical changes of hormones in relation to immunization against protein linked steroid in sheep.” Ph. D. Vet. (Biochemistry), Cairo University, Egypt.

3- Mustafa, W.S. (1997):”Studies on the effect of lead on reproductive and productive performance of rabbits” . Ph. D. Vet. (Anim. physiology), Cairo University, Egypt.

4- Ghazy, A.A. (1997): “Studies on parasitic affections in equines”. Ph. D. Vet. (Infectious Diseases), Cairo University , Egypt.

5- Hanafi, E.M. (1999):“Clinicopathological and histopathologiocal changes associated with endometritis in camels”. Ph. D. Vet. (Clinical Pathology.), Cairo University , Egypt.

6- El-Magazy, F.M. (2000):“Health aspects of fish cultured in reused wastewater with special reference to parasitic infestation” . Ph. D. Sci. (Zoology), Cairo University , Egypt.

7- Abu-Atiah, E.F.( 2001): “The immunogenetic aspects of reproduction in Arabian mares”. Ph. D. Vet. (Theriogenology), Zagazig University (Benha branch), Egypt.

8- Abde El Moez, S. I. ( 2007): "Bacterial profile of the genital tract of female buffalo during the different reproductive stages" . Ph. D. Vet (Microbiology), Cairo University , Egypt.

9- Mohamed, A.A.( 2007 ):“Studies on semen preservation in native bulls”. Ph. D. Vet. (Theriogenology), Cairo University. , Egypt.

10- Hasan, A. H (200 ): "Studies on cryopreservation of buffalo oocytes and embryos with special reference to the fertilizing capacity of semen in vitro". Ph. D. Vet. (Theriogenology), Beni Suef University, Egypt.

11- El-Gier, A.M. (200 ): “Study of the hormonal action of Myrrh (oleo-gum resin of Commiphora molmo ”. Ph.D. Sci. (Biological Chemistry), Cairo Univ. , Egypt.

12- Ibrahim, S.R.( 2010 – going on ): Clinico-Pathological and immunogentic Studies on Post Partum anestrum in Buffaloes”. Ph D. Vet.( Clinical Pathology), Cairo Univ. , Egypt.

13-Hozein, H.F.(2010- going on ): Studies on some physiological factors affecting the post partum ovarian rebound in buffaloes. Ph. D. Vet. (Anim. Physiology), Cairo University, Egypt.


Scientific Theses 

Title:Some Patterns of Reproduction in Native Egyptian Cattle Breeds 
Approved on : -13 June 1987 
Approved by : Department of Theriogenology, Faculty of Veterinary Medicine , Cairo University, Egypt 

2- Ph. D. Vet. 
Title:Studies on Reproductive Activity in Native Egyptian Cows 
Approved on : 9 March 1991 
Approved by : Department of Theriogenology, Faculty of Veterinary Medicine , Cairo University, Egypt 


1- Wahid M. Ahmed(2006): 

A Guide for Safe Handling of Laboratory Animals 
Safety and occupational health committee( SOHC), NRC 

2- Wahid M. Ahmed(2013): 

Adverse Conditions Affecting Ovarian Activity in Farm Animals 
ISBN: 978-3-659-34551-7 

Publisher: LAMBERT Academic Publishing , Germany 

3- Heba F.M. Hozyen, S.I.A. Shalaby, G.E.S. Essawy, W.M. Ahmed and M.A. Abdelrahman(2014): Haematological and Biochemical Alterations in Crossbred in Cows Exposed to Air Pollutants during Rice Straw Burning in Lower Egypt, in Environment and Biodiversity, Pages 9–20, Edited by : Neelima Gupta and D.K. Gupta, Copyright © 2014, Narendra Publishing House, Delhi, India 

Prof. Dr. Wahid Mohamed Mohamed Ahmed


1-Ahmed, W.M. (1986): Effect of human factor on production in buffaloes. Lights on Buffaloes, 2: 23-24 (In Arabic).


2-Ahmed, W.M. (1987): Estrous cycle in Egyptian buffaloes. Lights on Buffaloes, 3: 46- 48 (In Arabic). 

3-Ali, L.M.; Ahmed, W.M.; Shalash, M.R.; Ismail, E.M. and Hemeida, N.A. (1987):Studies on genital abnormalities in native Egyptian cows. Bacterial isolates from uteri in health and diseases. Egypt. J. Vet. Sci., 24: 27-32.


4-Ahmed, W.M. (1988): Buffaloes breeding records. Lights on Buffaloes, 4: 17-19 (In Arabic).

5-Ahmed, W.M.; Ismail, E.M; Shalash, M.R. and Hemeida, N.A. (1988): Reproduction in native Egyptian cows. Cervix uteri. Egypt. J. Vet. Sci., 25:139 – 144.

6-Ahmed, W.M.; Shalash, M.R.; Ismail, E.M. and Hemeida, N.A. (1988): Reproduction in native Egyptian cows. Ovarian follicular system. Egypt. J. Vet. Sci., 25:123-130.

7-Ahmed,W.M.; Shalash, M.R.; Ismail, E.M. and Hemeida, N.A. (1988): Reproduction in native Egyptian cows. Corpora lutea. Egypt. J. Vet. Sci., 25:131-138.

8-Ahmed, W.M.; Shalash, M.R.; Ismail, E.M. and Hemeida, N.A. (1988): Studies on genital abnormalities in native Egyptian cows. Some hematological values. Intern. J. Anim. Sci., 3:67-74.


9- Ahmed, W.M. (1989): Effect of Chernobyl disaster on production of farm animals (Translated to Arabic). Lights on Buffaloes, 5: 7-9 

10-Ahmed, W.M. (1989):Improvement of buffaloes production. Lights on Buffaloes, 5: 14-18. (In Arabic).

11-Ahmed, W.M.; Shalash, M.R.; Ismail, E.M. and Hemeida, N.A. (1989): Studies on genital abnormalities in native Egyptian cows. Abnormalities of uterine tubes and ovarian bursae. Acta Agraria Et Silvesteria, 28:105-116.

12-Ahmed, W.M.; Shalash, M.R.; Ismail, E.M. and Hemeida, N.A. (1989):Studies on genital abnormalities in native Egyptian cows. Uterine abnormalities. Egypt. J. Vet. Sci., 26:45-62.


13-Ahmed, W.M.; Hemeida, N.A; Ismail, E.M and. Shalash, M.R. (1991): 
Reproduction in native Egyptian cows. Caruncles and placentomes. Reprod. Dom. Anim., 26:42-46.

14-Ahmed, W.M.; Hemeida, N.A; Ismail, E.M and. Shalash, M.R. (1991): Reproduction in native Egyptian cows. Fetal membrane and fluids. Reprod. Dom. Anim., 26: 270-273.

15-Ahmed, W.M.; Shalash, M.R.; Ismail, E.M. and Hemeida, N.A. (1991): Studies on genital abnormalities in native Egyptian cows. Ovarian abnormalities. Intern. J. Anim. Sci., 6: 72-78.

16-Ahmed, W.M.; Shalash, M.R.; Ismail, E.M. and Hemeida, N.A. (1991): Estrous cycle of purebred native Egyptian cattle. Egypt. J. Vet. Sci., 28: 11-20.

17-Ahmed, W.M.; Shalash, M.R.; Ismail, E.M. and Hemeida, N.A. (1991):
Mineral profile during estrous cycle of purebred native Egyptian cows. Egypt. J. Vet. Sci., 28: 21-28.


18-Abdoon, A.S.; Ahmed, W.M. and Hassan, S.G. (1992): Seasonal variations in blood biochemistry in normal and anoestrous buffalo-cows. Egypt .J. Vet. Sci., 29: 35-46.

19-Ahmed, W.M. (1992):Some biometrical and physiological parameters associated with puberty in native Egyptian cows. Egypt. J. Vet. Sci., 29:7-22.

20-Ahmed, W.M. and Nada, A.R. (1992): Hematological picture of camels with testicular and epididymal affections. Egypt. J. Comp. Pathol. & Clin. Pathol., 5:195-202.

21-Ahmed, W.M.; Shalash, M.R.; Ismail, E.M. and Hemeida, N.A. (1992): Hormone profile during estrous cycle of purebred native Egyptian cows. Proc. The Intern. Meet. Work. Anim., Cairo, Egypt, April 13-16th, pp: 196-202.

22-Ezzo, O.H.; Ahmed, W.M. and Nada, A.R. (1992):Effect of some reproductive phases and disorders on plasma cortisol levels in buffaloes. Egypt. J. Comp. Pathol. & Clin. Pathol., 5:177-185.

23-Hegazy, A.A.; Younis, A.A.; El-Aaser, A.A.; Ahmed, W.M. and Desouky, H.M. (1992): Evaluation of protective role of mercaptopropionyl glycine on testis against gamma irradiation. Histopathological and hormonal studies. J. Egypt.Vet. Med. Assoc., 52:543-556.

24-Nada, A.R.; Shalaby, S.I. and Ahmed, W.M. (1992): Minerals and trace elements blood profile of brucella infected, pregnant and non-pregnant animals. Egypt. J. Comp. Pathol. & Clin. Pathol., 5:203-213.


25-Ahmed, W.M. (1993): Potentials of native Egyptian cattle. A review. Egypt. J .Vet. Sci., 30:1-26.

26-Ahmed, W.M. and Ezzo, O.H. (1993):Changes in cortisol levels during estrous cycle and peripartum period of native Egyptian cattle. Alex. J .Vet .Sci., 9:17-20.

27-Ahmed, W.M. and Ezzo, O.H. (1993): Some clinical and plasma biochemical parameters in post partum Egyptian cows with normal and delayed ovarian rebound. Afric. J. Agric. Sci., 20:81-91.

28-Ahmed, W.M. and Nada, A.R. (1993): Some pathological affections of testis and epididymis of slaughtered camels (Camelus dromedarius). Intern. J. Anim. Sci., 8:33-36.

29-Ahmed, W.M. and Nada, A.R. (1993): Some serum biochemical values of dromedary camels with impaired fertility. Pakistan .Vet. J., 13:16-18.

30-Ahmed, W.M. and Shalaby, S.I. (1993): Some enzymatic activities in sera and uterine homogenate of buffaloes and cows during some reproductive phases and disorders. Indian J. Anim. Sci., 63:1248-1253.

31-Ahmed, W.M.; Hemeida, N.A Ismail, E.M. and Shalash, M.R. (1993):Hormone profile during pregnancy and prepartum period of native Egyptian cows. Anim. Sci. Abroad, 20:12-13.

32-Ahmed, W.M.; Ismail, E.M Shalash, M.R. and Hemeida, N.A. (1993): Mineral profile during pregnancy and prepartum period of native Egyptian cows. Anim. Sci. Abroad, 20:27-28.

33-Ahmed, W.M.; Nada, A.R. and Shalaby, S.I. (1993):Uterine humoral and cellular immune response in some cases of genital disorders in buffaloes. Reprod. Dom. Anim., 28:298-301.

34-Nada, A.R. and Ahmed, W.M. (1993): Investigations on brucellosis in some genital abnormalities of she camels (Camelus dromedarius). Intern. J .Anim. Sci., 8:37-40.

35-Nada, A.R; Ahmed, W.M and Abdoon, A.S. (1993): Studies on endometritis in buffalo-cows. Progesterone level in relation to infection. Egypt. J. Comp. Pathol. & Clin. Pathol, 6:231- 238.

36-Zayed, A.A. and Ahmed, W.M. (1993):Impact of Cephalopina titiiiator infestation in camels (Camelus dromedarius). Egypt. J. Comp. Pathol. & Clin. Pathol, 6:15-23.


37-Abdoon, A.S. and Ahmed, W.M. (1994):Induction of ovarian cyclicity in Egyptian cows during post partum period. J. Egypt.Vet. Med. Assoc., 54:55-62.

38-Abdoon, A.S.; Ahmed, W.M. and Eltohamy, M.M. (1994): Ovarian response following hormonal treatment of anoestrous buffaloes. Proc. The 4th,Wld. Buff Congr., Sao Paulo, Brazil, Vol.: III: 531-533.

39-Ahmed, W.M. and Nada, A.R. (1994):Observations on sweat glands in scrotum of buffalo and cattle bull. Proc. The 4th Wld. Buff Congr., Sao Paulo, Brazil, Vol.: III: 624-626.

40-Ahmed, W.M.; Abdoon, A.S and Eltohamy, M.M. (1994):Studies on reproduction in farm animals under the condition of the new reclaimed areas. 2-Relation between some blood composition and reproductive status in Egyptian cattle. Proc. The 7thArab. Scient. Conf. Biol. Sci., Tunisia, p. 35 (Abs.).

41-Ahmed, W.M.; Nada, A.R.; Shalaby, S.I.; Ezzo, O.H. and Hassan, S.G. (1994): Impact of work status on metabolic profile in cycling cows, mares, she-camels and buffalo-cows. Intern. J. Anim. Sci., 9:305-308.

42-Ali, G.A.; Nada, A.R. and Ahmed, W.M. (1994): Humoral immunological response of buffaloes during estrous cycle before, during and after drenching Cyfluthrin, A synthetic pyrethroid. Egypt. J. Appl. Sci., 9:592-600.

43-Badawy, I.H.; Atta, B. and Ahmed, W.M. (1994): Biochemical and toxicological studies on the effect of high and low erucic acid rapeseed oil on rats. Die Nahrung, 38:402-411.

44-Eltohamy, M.M; Ahmed, W.M. and Abdoon, A.S. (1994):Studies on reproduction in farm animals under the condition of new reclaimed areas. 1-Ovarian activity in relation to some blood composition. Proc. The 4th, Wld. Buff. Congr., Sao Paulo, Brazil, Vol.: III: 612-614.

45-Hassan, S.G.; Nawito, M.F.; Ezzo, O.H. and Ahmed, W.M (1994):
Mineral levels in blood of buffaloes during different reproductive stages in relation to feeding season. Proc. The 4th, Wld. Buff Congr., Sao Paulo, Brazil, Vol.: III: 621-623.


46-Hassan, S.G; Shalaby, S.I., Ahmed, W.M.; Sabra, H.A. and Kutkat, M.A. (1995): Some immunological and hormonal changes of cocks dipped in Neguvon. Egypt. J. Appl. Sci., 9:149-160.

47-Omar, M.A.; Ahmed, S.A.; Ahmed, W.M.; Radwan, Y.A. and El-Sherif, Y.G. (1995): Clinicopathological, minerals, trace elements and enzymes of coccidiosis infested Barki lambs. Alex. J. Vet. Sci., 11:25-30.


48-Ahmed, W.M.; Nada, A.R.: Ali, U.A. and Ali, G.A. (1996): Effect of ivermectin (Ivomec) on metabolic profile and some reproductive functions in male Baladi rabbits. Beni- Suef Vet. Med. Res., 6:237-246.

49-Eltohamy, M.M; Ahmed, W.M. and Abdoon, A.S. (1996): Relation between blood composition and ovarian inactivity in cows and buffaloes and trials for possible treatment. J. Union Arab Biol., Cairo, 6:181-192.

50-Hassanin.M.A.; Ahmed, W.M. and Abd El-Aziz, M.M. (1996): Toxoplasmosis in relation to genital diseases in Egyptian buffaloes. Egypt. J. Appl. Sci., 11:286-295.

51-Kandil, O.M.; Abdoon, A.S. and Ahmed, W.M. (1996): Ovarian and uterine morphohistological changes in superovulated Barki ewes. Alex. J. Vet. Sci., 12:111-120.

52-Ahmed, W.M. (1997): Investigations on ovarian inactivity in Egyptian buffalo. Zag. Vet. J., 25: 94-102.

53-Ahmed, W.M. and Eltohamy, M.M. (1997): Zinc profile in blood and semen of breeding buffalo bull with particular emphasis on age variations and semen characteristics. Proc. The 5th Wld Buff. Congr., Caserta, Italy, pp: 825-828.

54-El-Sheshtawy, R.I.; Ahmed, W.M. and Ezzo, O.H. (1997):Effect of oral administration of baythroid (Cyfluthrin) on levels of testosterone and some trace elements in the seminal plasma of Egyptian buffalo bulls. Proc. The 5th Wld Buff. Congr., Caserta, Italy, pp: 861-864.

55-Sabra, H.A.; Ahmed, W.M. and Ezzo, O.H. (1997):Effect of flushing with sunflower seeds meal on some blood plasma metabolites during the different reproductive phases in Barki ewes. Beni-Suef Vet. Med. Res., 7:260-275.


56-Ahmed, W.M. and Ezzo, O.H. (1998): Peripartum changes of plasma thyroxine (T4) and Tri-iodothyronine (T3) levels in buffalo-cows with emphasis on postpartum ovarian inactivity. Alex. J. Vet. Sci., 14:177-186.

57-Ahmed, W.M. and Shalaby, S.I. (1998): Temporal relationship between plasma progesterone and oxytocin profiles in relation to ovarian activity in sheep. Indian J. Anim. Sci., 68:1164-1166.

58-Ahmed, W.M.; Desouky, H.M.; Amer, H.A.; Mahmoud, K.G. and Ahmed, Y.F. (1998): Effect of the fungicide (Tri-Miltox Fort) on some reproductive aspects in female rats. Vet. Med. J. , Giza, 46:833-847.

59-Ahmed, W.M.; Desouky, H.M.; Shalaby, S.I. and El-Sheshtawy, R.I. (1998): Effect of ovarian inactivity on lipidogram and histopathological picture of genital organs in bovines. Egypt. J. Comp. Pathol. & Clin. Pathol., 11:43-57.

60-Ahmed, W.M.; El-Ekhnawy, K.I. and Youssef, H.M. (1998): Studies on post-partum anoestrum in Friesian cows in Egypt. Egypt. J. Appl. Sci., 13:1-13.

61-Ahmed, W.M.; Shalaby, S.I. and Eltohamy, M.M. (1998): Trials for improving reproductive efficiency of Egyptian Baladi goats using copper oxide needles. Egypt. J. Vet. Sci., 32:33-52.

62-Ahmed, W.M.; Shalaby, S.I. and Zaabal, M.M. (1998):Effect of mineral supplementation on some blood biochemical and immunogenetical parameters in buffalo cows suffering from inactive ovaries. Beni-Suef Vet. Med. Res., 8:149-165.

63-Ahmed, W.M.; Shalaby, S.I. and Zaabal, M.M. (1998): Some biochemical constituents of preovulatory and cystic ovarian follicular fluids in buffalo-cows with emphasis on protein polymorphism. Intern J. Anim. Sci., 13:53-57.

64-Ahmed, Y.F.; Ahmed, W.M.; Desouky, H.M.; Mahmoud, K.G. and Amer, H.A. (1998): Effect of fungicide (Mancozeb) on reproduction in male albino rats with special reference to biochemical, pathological and chromosomal changes. Egypt. .J. Comp. Pathol. & Clin. Pathol., 11:21-34

65-El-Sheshtawy, R.I.; Ahmed, W.M.; Ali, G.A. and Eltohamy, M.M. (1998): Influence of mineral supplementation on reproductive efficiency of buffalo-bulls suffering from low libido. Proc. The 10th Ann. Congr. Egypt. Soc. Anim. Reprod. & Fert., Giza, Egypt, pp: 159-1690

66-Helal, F.I.; Ahmed, W.M.; El-Ashry, M.A; El-Sayed, H.M. and El-Hanafy, A.M. (1998):Effect of supplementing selenium and vitamin E on some productive and reproductive traits in lactating buffalo-cows. II-Reproductive performance. J. Agric. Sci., Mansoura Univ., 23:2125-2137.

67-Shalaby, S.I.; Ahmed, W.M. and Amer, H.A. (1998):Reproductive problems in farm animals exposed to pesticides with emphasis on sheep. Egypt. J. Comp. Pathol. & Clin. Pathol., 11:46-56.

68-Shalaby, S.I.; Kandil, O.M.; Ahmed, W.M. and Abdoon, A.S. (1998): Effect of increasing dietary fat on ovulation rate, embryo production and some blood biochemical values in sheep. Alex. J. Vet. Sci., 14:117-129.


69-Ahmed, W.M.; El-Ekhnawy, K.I.; Desouky, H.M.. Zaabal, M.M. and Ahmed, Y.F. (1999):Investigations on retained fetal membranes in Friesian cows in Egypt. Egypt. J. Comp. Pathol. & Clin. Pathol., 12: 160-177.

70-Ahmed, W.M.; Abdoon, A.S.; Shalaby, S.I. and Kandil, O.M. (1999): Effect of reproductive status and body condition on ovarian follicles and oocytes quality in buffalo-cows. Buff. J., 15: 333 - 343.

71-Hanafi, E.M.; Ahmed, W.M.; Bashandy, M.M.; Omar, M.A. and Dessouky, M.I. (1999):Observations on blood and genital organs of she camels (Camelus dromedarius) suffering from endometritis. Egypt. J. Comp. Pathol. & Clin. Pathol. 12:88-105.

72-Shalaby, S.I.; Ahmed,W.M.; Zaabal, M.M. and Sabra, H.A.(1999): Effect of body conditions scores on some metabolic profile tests in cycling buffalo-cows. Proc. The 11th Ann. Congr. Egypt. Soc. Anim. Reprod. & Fert., Cairo, Egypt, pp: 171-183.


73-Abdoon, A.S.; Ahmed, W.M.; Kandil, O.M. and Shalaby, S.I. (2000): Evaluation of superovulatory response in anoestrous and cyclic native cows in Egypt with emphasis on hormonal and blood biochemical changes. Vet. Med. J., Giza, 48: 185 - 196.

74-Ahmed, W.M.; Bashandy, M.M.; Omar, M.A.; Dessouky, M.I. and Hanafi, E.M. (2000):Studies on blood and genital organs of she camel (Camelus dromedarius) having non-functioning ovaries. Egypt. J. Comp. Pathol. & Clin. Pathol., 13:201 - 209.

75-Ahmed,W.M.; Kandil, O.M ;Desouky, H.M. and El- Khadrawy, H.H. (2000):Effect of thyroid function on reproductive performance of Baladi goats with emphasis on superovulation response and embryo recovery. Vet. Med. J., Giza, 48:581- 598.

76-Ahmed,W.M.; Sabra, H.A.; Hamam, A.M.; El Sheshtawy, R.I. and Shalaby, S.I. (2000):Effect of GnRH injection on steroid hormone levels and lipidogram of male farm animals. Vet. Med. J., Giza, 48:489- 502.

77-Amer, H.A.; Ahmed, W.M. and Shalaby, S.I. (2000): Effect of chronic low dose oral administration of the organic phosphorus compound, Selecron on some blood constituents and reproductive parameters in Baladi sheep. Egypt. J. Comp. Pathol. & Clin. Pathol., 13: 81 - 88 .

78-El-Nattat, W.S.; Ahmed, W.M.; Soliman, F.A.; Eltohamy, M.M. and Younis, M.M. (2000): Effect of low dose exposure to lead on male reproduction in rabbits. Egypt .J. Vet. Sci., 34: 59 - 74.

79-Maghraby, N.A.; Ahmed, W.M and Sabra, H.A. (2000): Some nutritional and reproductive aspects in rabbit does fed on rations partially substituted with potato processing waste. J. Agric Sci., Mansoura Univ., 25: 161-168.

80- Omar, M. A.; Bashandy, M.M.; Dessouky, I.M.; Hanafi, E.M. and Ahmed, W.M. (2000):Comparative studies on blood and genital organs of she camels (Camelus dromedarius)during early and late postpartum periods. Proc. The 1st Conf. Vet. Physiol., Beni-Suef. Egypt, pp: 37-48.

81-Zaabal, M.M.; El-Ekhnawy, K.I.; Ahmed, W.M. and Said, F.A. (2000): Evaluation of fertility of local Egyptian Friesian cows with emphasis on immunogenetic analysis. Proc. The 5th Scient. Congr., Fac.Vet. Med., Zagazig Univ., Sharm El-Sheikh, Egypt, pp: 185-195.


82- Abdoon, A.S. and Ahmed, W.M (2001): Studies on corpus luteum function in pregnant camels (Camelus dromedarius). J. Egypt. Vet. Med. Assoc., 61:667-78.83-Abdoon, A.S.; 

83-Abndoon, A.S.; Ahmed, W.M. and Mahous, K.F.(2001):Effect of chronic exposure to the pesticide Selecron® on ovulation rate, progesterone level and chromosomal abnormalities in ewes. Vet.Med.J.,Giza, 49: 5 –15.

84-Ahmed, W. M. ; Mohamed, A. A. and Abou Ahmed, M.(2001):Plasma testosterone level of purebred native Egyptian bulls with emphasis on variations due to bull, ejaculation and season of the year, and correlation with sexual behavior and semen characteristics. Proc. The 4th Intern. Conf. Farm Anim. Endocrinol., Italy, poster 10 p: 38. 

85-Ahmed, W.M.; Sabra, H.A. and Hamam, A.M (2001): Effect of administration of vitamins AD3E and selenium during prepartum period on the reproductive performance of native cows in Egypt. Beni-Suef Vet. Med. J., 11: 81 - 91.

86- Barakat, A.M.; Hanafi, E.M.; Sabra, H.A.; Zaabal, M.M. and Ahmed, W.M. (2001): Effect of parasitic infection on ovarian activity in native Egyptian cows and ewes with special reference to changes in some blood constituents and immunogenetic markers. Zag. Vet. J., 29:121-136.

87-Desouky, H.M.; El-Sheshtawy, R.I; Hanafi, E.M; Shalaby, S.I and Ahmed, W.M. (2001): GnRH response in lead exposed Baladi bucks with emphasis on seminal, blood and testicular alterations. Egypt. J. Vet. Med. Assoc., 61:127- 142.

88-Helal, F.I.; El-Sheshtawy, R.I. and Ahmed, W.M. (2001): Evaluation of reproductive traits of IL-de-France and Finnish Landrace rams under the Egyptian conditions with special emphasis on breed and seasonal variations. Proc. The 12th, Ann. Congr. Egypt. Soc. Anim. Reprod. & Fert., Cairo, Egypt, pp: 87 -96.

89-Sabra, H.A.; Ahmed, W. M; Zaabal, M.M.; Maghraby, N.A.; El-Khadrawy, H.H. and Desouky, H.M. (2001):Effect of immunopotentiation on the performance of local breed hens. J. Agric. Sci., Mansoura Univ., 26:6029-6041. 

90-Zaabal, M.M.; Ahmed, W.M. and Sabra, H.A. (2001): Investigations on kidding in Egyptian Baladi goats with emphasis on immunogenetic structure and progesterone level. Egypt J. Vet. Sci., 35 : 71 - 88 .


91-Ahmed, W. M.; El Sheshtawy, R.I.; Desouky, H. M.; Hanafi, E. M. and Ali, G. A.(2002): Semen characteristics, blood constituents and testicular pathology in Baladi bucks injected with Flunixin Meglumine (Finadyne).Vet. Med.J,Giza , 50: 843 – 862.

92-Ahmed, W. M.; Sabra, H.A.; Shalaby, S.I and Hanafi, E. M. (2002): The present situation of ovarian inactivity in Egyptian cows and buffaloes. Beni-Suef Vet. Med. J.,12: 13- 26.

93-El-Sheshtawy, R.I.; Ahmed, W. M. and Abdoon , A. S.(2002): Evaluation of buffalo-bulls frozen semen with emphasis on type and concentration of sugars added to the diluent Egypt. J Basic & Appl.. Physiol.,1;139-145.

94-El-Sheshtawy, R. I.; Ahmed, W. M.; Hanafi; E. M. and Shalaby, S. I. (2002): Trials for improving reproductive traits of Baladi bucks using feed additives. Assiut Vet Med .J.,46 : 285-298.

95-El Sheshtawy, R. I.; Ahmed, W. M.; Zaabal, M. M.; Ali, G. A, and Shalaby, S. I. (2002): Effect of selenium and /or vitamin E administration on some reproductive traits of Baladi bucks. Vet. Med., Giza, 50: 863 – 874.

96-Hanafi, E. M; El-Sheshtawy, R. I; Ahmed, W. M and Ali, G. A (2002)::Effect of a synthetic gonadotrophin releasing hormone (Receptal®) on some seminal and blood attributes in Baladi bucks. J. Egypt. Vet. Med. Assoc., 62: 95-108.

97- Zaabal, M. M.; Ahmed, W. M. and El Ekhnawy, K. I. (2002): Relationship between twinning rate, some kidding parameters and immunogenetic markers in blood and colostrum proteins in Damascus does. Zag. Vet. Med. J., 30: 74 – 83.


98- Ahmed, W.M. ; Abou Mosallam, A.A. ; Hanfi, E.M.and Shalaby, S.I.(2003): Observations on fertility and mutagenicity of Egyptian ewes exposed to products of rice straw combustion with special reference to the effect of Flunixin Meglumine. J. Egypt.Vet. Med. Assoc.,63; 195 – 212.

99-Ahmed, W. M.; Desouky, H. M.; Abou Mossallam, A. A; Hanafi, E. M. and Ali, G. A.(2003): Effect of diet containing gossypol on ovarian and uterine activities in mice with special reference to hematological, cytological and histopathological alterations. Egypt. J. Vet. Med. Assoc. 62: 7 - 32 .

100 - El Khadrawy, H.H.; Younis, A.A.;Ahmed, W.M.;Abd El Fatah, M.M.; Abd El Aziz, S.A. and Yousef, G.W.(2003): Effect of immunization against estradiol-17ß on some biochemical parameters and reproductive performance in Barki ewes. Egypt. J. Vet. Sci., 37: 93 - 103

101- El Khadrawy, H.H.; Younis, A.A.;Ahmed, W.M.;Abd El Fatah, M.M.; Abd El Aziz, S.A. and Yousef, G.W.(2003):Effect of active immunization against estradiol-17 on plasma antibody titer and steroid lev els in barki ewes. Egypt. J. Vet. Sci., 37:117 – 125. 

102-Mohamed, A. A.; Ahmed, W. M. and Abou Ahmed, M. M.(2003 ): Sexual behavior, semen characteristics and plasma testosterone values of purebred native Egyptian bulls with emphasis on seasonal and monthly variations. Egypt. J. Vet. Sci., 37: 61 – 79. 

103-Mohamed, A. A.; Ahmed, W. M. and Abou Ahmed, M. M.(2003 ): Effect of ejaculation on plasma testosterone level of purebred native Egyptian bulls with emphasis on correlation with sexual behavior and semen characteristics. Egypt. J. Vet. Sci.,37: 81 - 92 


104-Ahmed. W.M. (2004): Adverse conditions affecting ovarian activity in small ruminants. J Vet Res. Div., NRC, 1: 1- 25.

105- Ahmed. W.M.; El Ekhnawy, K.I.; El Nattat, W.S.; Desouky, H.M., Abd El Razik, K.A. and El Khadrawy, H.H. (2004): Investigations on calving associated problems in a Friesian herd in Egypt with special reference to some prophylactic trials. Egypt. J. Bas. Appl. Physiol., 3: 65 – 78. 

106- El Ekhnawy, K.; Sabra, H.A. and Ahmed, W.M. ( 2004): A field trial to shorten the calving conception interval in buffaloes. J Vet Res. Div., NRC, 1: 59 – 67.

107- El Sheshtawt, R.I and Ahmed, W.M (2004): Trials for maximizing the efficacy of GnRH in improving the libido and semen characteristics in fat tailed rams. Egypt. J. Vet. Med. Assoc ,64; 349 – 364.

108- El Sheshtawt, R.I.; Ahmed, W.M.; El Kadi, R.I. and El Khadrawy, H.H. (2004): Effect of protected fats on some nutritional and reproductive profiles in Baladi bucks. Egyprian J. Basic appl. Physiol. 3: 163 – 178. 

109-Zaabal,M.M. ; Ahmed, W.M.; El-Khadrawy, H.H. and El-Battawy, K.A. ( 2004) : Studies on immunogenetic markers and amino acid concentrations in relation to ovarian activity in Barki ewes. Egypt. J. Vet. Med. Assoc. 64: 65 - 77 

110- Zaabal, M.M.; El-Ekhnawy, K.I.; Ali, F.Kh. and Ahmed, W.M. (2004): Genetic polymorphism of blood groups and proteins in relation to retained placenta in a herd of Frriesian cows in Egypt. Proc. 7th Vet. Med Zag. Conf., Sharm El-Sheikh, pp; 193 – 204


111- Ahmed, W.M .; Nabil,G.M.; El-Khadrawy, H.H.; Hanafi, E.M.and Abd El- Moez, S.I. (2005):Monitoring progesterone level and markers of oxidative stress in blood of buffalo-cows with impaired fertility.Proc. the 2nd Interm. Congr. Vet. Res. Div., National Research Center, Ciro, Egypt,p: 1 – 13. 

112- Hassanain,M.A. and Ahmed,W M. (2005): Health and production of sheep exposed to treated waste water. Proc. The 12th Intern. Congr. Intern. Soc. Anim. Hygiene , Warsaw, Poland, pp:175 – 179.


113-Abd El-Razik, K.A.; Desouky, H.M. and Ahmed, W.M. (2006):Evaluation of different Brucella diagnostic techniques on Baladi Does Experimentally Infected with Brucella melitensis. Online J. Vet. Res., 10: 219 - 234.

114-Ahmed, W.M.(2006): Adverse condition affecting ovarian activity in large farm animals. Proc. 3rd Intern. Conf., Vet. Res. Div., NRC, Egypt, pp: 251 – 253.

115-Ahmed, W.M.(2006): Safe handling of laboratory animals. Almostakbal, NRC, 21:21 – 25 (in Arabic).

116-Ahmed, W.M. ; El-Khadrawy, H.H. and Abd El-Hameed, A.R.(2006): Applied investigatiuons on ovarian inactivity in buffalo-heifers. Proc. 3rd Intern. Conf. Vet. Res. Div., NRC, Egypt, pp: 1-15.


117-Abd El-Razik, K.A. ; Desouky, H.M. and Ahmed, W.M. (2007): Investigations on brucellosis in Egyptian Baladi does with emphasis on evaluation of diagnostic techniques. Pak. J. Biol.. Sci., 10 : 342 – 348.

118- Ahmed, W.M. (2007): Overview on some factors negatively affecting ovarian activity in large farm animals. Glob. Vet, 1:53 -66.

119-Ahmed, W.M. and Hassan, S.E.(2007): Applied Studies on coccidiosis in growing buffalo-Calves with special reference to oxidant/antioxidant status. Wld. J. Zool., 2: 40 – 48.

120- Ahmed,W.M. and Nabil,G.M.(2007):Investigations of oxidant/ antioxidant status and hemoglobin biophysical properties in buffalo calves with special reference to inferior preweaning vitality. Pak. J. Biol. Sci., 10: 2353 – 2358.

121- Ghazy,A.A.; Ahmed, W.M.; Mahmoud, M.A. and Ahmed, L.A (2007): Prevalence of IBR and BVD viruses in female buffaloes with reproductive disorders and parasitic affections. Intern. J. Dairy Sci., 2: 339 – 347.

122- Kandil,O.M.; Abdoon,A.S.S.;. Kacheva, D.; Karaivanov, Ch. : Fadel, M. Hemeida, N. A. Georgiev, TI. Maslev, Ahmed, W. and Raffat, H.(2007): The firest Egyptian buffalo calf born through non surgical embryo recovery and transfer. Proc. 14th Intern. Conf. Biotech. Anim. Reprod. (ICBAR), pp:60 – 61 .


123-Abd El-Moez, S.I.; Ahmed, W.M.; El-Jakee, J.K. and El-Seedy, F.R.(2008): Observation on Lactobacillus spp. In the genital tract of buffalo-cows with emphasis on its in vitro probiotic activity. Global Vet.,2:15 – 21.

124-Ahmed, W.M. and Hassan,S.E.(2008): A Field investigation on the correlation between reproductive disorders and eimeriosis in female buffaloes with emphasis on use of partially purified oocyst antigen for diagnosis . Glob. Vet.,2: .

125- Ahmed, W.M. and Zaher, K.S.(2008): A field contribution on the relation between reproductive disorders and bovine viral diarrhea virus infection in buffalo-cows. Am.-Eura. J. Agric. Environ. Sci., 3; 736 – 742.

126-Ahmed, W.M. ; A. R. Abd El-Hameed, A.R and El Moghazy, F.M.(2008): Some reproductive and health aspects of female buffaloes in relation to blood lead concentration. Intern J, Dairy. Sci. 3: 63 - 70.

127- Ahmed, W.M.; Abd El-Moez,S.I. and Nabil, G.M. (2008): Observations on sub - clinical mastitis in buffalo-cows with emphasis on measuring of mlk electrical resistance for its early detection. Glob. Vet., 2: 41 – 45.

128- El-Jakee, J.K.; Ahmed, W.M.; El-Seedy, F.R. and Abd El-Moez, S.I. (2008): Bacterial profile of the genital tract in female-buffalo during the different reproductive stages. Glob. Vet.,2: 7 – 14.

129-El_Khadrawy, H.H.; El Moghazy,F.M.; Abd El Aziz,M.M. and Ahmed, W.M. (2008): Fieldinvestigations on the correlation between ovarian activity and fascioliosis in buffalo-cows . Am-Eura. J. Agric. Environ. Sci., 3:539 – 546.

130- Hassanain, N.A. and Ahmed, W.M.(2008): Occupational exposure of buffalo gynecologists to zonotic bacterial diseases Res. J. Microbiol. 3: 17- 23.

131-Mohamed, A.A.; Ahmed, W.M.; Eissa, H.M.; El-Menoufy, A.A. and El-Sheshtawy, R.I. (2008):Investigations on semen preservation of native purebred Egyptian bulls. . Proc. 4th Intern. Conf. Vet. Res. Div., NRC, Egypt, pp: , pp: 211 – 213.

132- Zaher, K. S. and Ahmed, W.M. (2008): Impact of foot and mouth disease on oxidative status and ovarian activity in Egyptian buffaloes. Wld. J. Zool., 3: 1 – 7.

133- Zaher, K.S.; Ahmed,W.M. ; Syame, S.M. and El Hewairy, H.M.(2008): Detection of health hazard- food born viruses in animal products anticipated for human consumption . Glob. Vet.,2; 192 – 197. 

134- Zaher, K.S.; Ahmed,W.M. and Zerizer, S.N.(2008):Observations on the Biological Effects of Black Cumin Seed (Nigella sativa) and Green Tea (Camellia sinensis) . Glob. Vet., 2: 198 – 204.


139- Abd Elhameed, A.R., Ahmed, W.M., El Ekhnawy, K. I. and El Khadrawy, H.H.(2009): Strategy trials for prevention of retained fetal membranes in a Friesian herd in Egypt. Glob. Vet., 3: 63 – 68.

140- Ahmed, W. and Zaabal, M.M.(2009): Analyzing the immunogenetic constituents of dams, sires and calves in relation to placental retention in a Friesian herd. Glob. Vet., 3: 32 – 36.

141-Ahmed, W.M.; Abd El Hameed, A.R.; ElKhadrawy, H.H. and Emtenan M. Hanafi, E.M.(2009): Investigations on retained placenta in Egyptian buffaloes. Glob. Vet., 3: 120 – 124.

142-Ahmed,W.M.; El Khadrawy, H.H.; Hanafi, E.M.; Abd El Hameed,A.R. and Sabra, H.A.(2009): Effect of cupper deficiency on ovarian activity in Egyptian buffalo cows.Wld.J. Zool.,4: 1 – 8.

143-Ahmed,W, M.; Habeeb, S.M.;El Moghazy,F.M.and Hanafi,E.M. (2009): Observation on pediculosis in buffalo-cows with emphasis on its impact on ovarian activity andsontrol by herbal remedies. World Applied Sciences Journal, 6 : 1128-1138


144- Ahmed,W.M.; Bashandy, M.M., Ibrahim, A.K., ShalabyS.I.A. ; Abd El-Moez, S.I.; El Moghazy, F.M. and Ibrahim, S.R.(2010): Investigations on delayedpPuberty in Egyptian buffalo-heifers with emphasis on clinicopathological changes and treatment using GnRH (Receptal®). Glob. Vet., 4(1): 78 -85.

145- Ahmed, W.M.; El Khadrawy, H.H. ;Abd El Hameed, A.R. and Amer, H.M. (2010): Applied investigation on ovarian Inactivity in buffalo-heifers. Inter. J. Acad. Res.,2(1):26 – 32.

146- Ahmed W.M.; El-Khadrawy, H.H.; El Moghazy, F.M. ; Hanafi, E.M. ; Romany, M.M. and Habib,S.M. ( 2010): Field observations on the relationship between babesiosis and reproductive disorders in female buffaloes. Intern. J. Acad. Res. 2(6): 342 – 348.

147- Ahmed, W.M.; El-Khadrawy, H.H.; Hanafi ,E.M. ; Ali , A.H. and Shalaby, S.A.(2010): Clinical perspective of repeat breeding syndrome in buffaloes. Amer. J. Sci., 6(11): 661 – 666.

148- Ahmed, W.M.; Nabile, G.M.;El Khadrawy, H.H.,hanafi, E.M.; Abd El- Moez,S.I. and Abd El Hameed, A.R.(2010): The relationship between oxidant/antioxidants imbalance and fertility in buffalo-cows. Inter. J. Acad. Res., 2(1):1 – 9

149-Ahmed, W.M.;Zaabal,M.M. and and Abd El Hameed, A.R.(2010):Relationship between ovarian activity and blood lead concentration in cows and buffaloes with emphasis of gene frequency of hemoglobin. Glob. J. Biotechnol. Biochem., 5 (1): 1 - 5

150-.El Khadrawy, H.H.; Zaabal, M.M. ; Ahmed,W.M. and Shalaby, S.I.(2010): Genetic constitutions affecting ovarian activity in Egyptian cattle and buffaloes. Glob. J. Mol. Sci.,5(2): 53 – 57.

151- Zaabal, M.M. and Ahmed, W.M.(2010): Monitoring of gene markers associated with fertility in purebred Arabian stallions. Journal of Reproduction and Infertility,1(2): 41 -44.

152-Zaabal, M.M. and Ahmed, W.M.(2010): Correlation Between Semen
Characteristics and Gene Markers in Purebred Arabian Stallions. Journal of Reproduction and Infertility,1(2):45 -49.


153-Abd El-Razik, K. A.; AL-Humiany, A.A. Ahmed, W.M. ; Barakat, A.M. A. and ElFadaly, H.A. ( 2011) : Investigations on other non brucella causes of abortion in small ruminants. Glob. Vet., 6(1): 25 -32.

154- Ahmed, W.M. ; Hanafi,E.M. ; Soliman, N.M. and Ali, A.H. (2011): Ovitone as a novel treatment for ovarian inactivity in Egyptian buffaloes . World Applied Science Journal, 14(9): 1258 -1264.

155- Desouky,H.M. ; Younis,A.A.; Ahmed, W.M. and . Hegazy,A.A.(2011): Experimental Infection of Pregnant Does with Bovine Virus Diarrhoea virus(BVDV): Pathological Effects on Newly Born Kids. Global Veterinaria,7(5): 415-422.

156- El-Khadrawy, H.H.; Ahmed ,W.M. and Hanafi,E.M. (2011): Observations on Repeat Breeding in Farm Animals with Emphasis on Its Control. J.Reprod. Infert., 2(1): 1-7. 

157-Hanafi ,E.M.; Ahmed, W.M. ; El Khadrawy, H.H. and M.M. Zabaal, M.M (2011): An Overview on Placental Retention in Farm Animals. Middle-East J. Sci. Res,7(5): 643 – 651.

158-Zaher, K.S. and Ahmed, W.M. (2011): Investigations on bovine ephemeral fever virus in Egyptian cows and buffaloes with emphasis on isolation and identification of a field strain . Global Vet.,6(5): 447-452


159- Ahmed,W.M. ; Hanafi , E.M. and Zaabal, M.M.(2012): A Trial to Ameliorate the Reproductive Performance of Native Egyptian Cows Suffering from Reduced Fertility. Global Veterinaria,8(2): 174 – 178

160- Hanafi , E.M.; El Khadrawy, H.H. Ahmed, W.M. and Zabaal, M.M. (2011) : Some Observations on Rice Straw with Emphasis on Updates of its Management. Wld. Appl. Sc. J., 16 (3): 354 – 361

161- Hassanin, .A. and Ahmed, W.M.(2012): Sero-Prevalence of Brucellosis in Egypt with Emphasis on Potential Risk Factors. Wld J. Med. Sc.,7(2): 81 -86.

162- Hassanin, .A. and Ahmed, W.M.(2012): Efficacy of Serological Tests in Comparison with PCR for Diagnosis of Brucellosis. Wld J. Med. Sc., 7 (4): 243-247, 2012

163-Hozyen, H.F.; Shalaby, S.I.; Essaway,G.E, Ahmed, W.M. and Abdelrahman, M.A.(2012); Hematological and some biochemical alterations in crossbred cows exposed to air pollutants during rice straw burning in lower Egypt. Proc intern conf. Recent trends in climate change researches , 3-4thth December 2012,PP:

164- Zaabal, M.M.; Ahmed,,W.M.; Abu Atia , E.F. and Hanafi, E.M.(2012): Relationship between ovarian inactivity and genetic polymorphism in purebred Arabian mares.. J. Reprod. Infert.,3(2): 22 – 25. 


165- Ahmed, W.M..;.Zaabal, M..M. ;Hanafi, E.M. ; Abu Atia,.E.F. ; Elkhadrawy H.H. and .ElBattawy, K.A.(2013): Relationship between immunogenetic markers and some reproductive parameters in purebred Arabian mares. Global Veterinaria, 10 (6): 702-707, 2013 

166- Hanafi, E.M.; Ahmed, W.M.; Bowman D.D.; Zaabal. M.M. and Elkhadrawy, H.H.(2013): Impact of parasitic infection on immune response and reproductive outcome. Wld Appl, Sci J., 21(1): 30-41. 

167- Hanafi, E.M.; Ahmed,W.M.; Zaabal, M.M.; Abeer A. El-Hadi, A.A.; El khadrawy, H.H and. Ghazy,E.A.(2013):An Overview on Applications of Nanoparticles in Biological Systems. Global Journal of Pharmacology,7 (3):348-359, 

168- Hassanain, N.A. ; Hassanain, M.A.; Ahmed, W.M.; Shapaan, R.M. ;. Barakat, A.M. and . El Fadaly, H.A.(2013): Public Health Importance of Foodborne Pathogens. World Journal of Medical Science, 9(3): - 

169- Zaabal, M.M.; Ahmed,,W.M.; Abu Atia , E.F. ; Hanafi, E.M. and ElKhadrawy, H.H.(2013): Immunogenetic investigations on repeat breeding phenomenon in purebred Arabian mares. Global Veterinaria, 10(4):387- 390 

170- Zaabal,M.M. ; Ahmed, W.M.;. Hanafi , M.M.and Hesham H. El Khadrawy, H.H.(2013): Correlations between gene markers of some blood protein loci and semen characteristics in purebred Arabian stallions. Global Veterinaria,11 (4): 385-389, 2013 


171- El-Sheshtawy,R. I.; Ahmed,W.M; Zaabal, M.M.; G. A. Ali, G.A. and S. I. Shalaby, S.I. (2014): Effect of Selenium and /or Vitamin E Administration on Semen Characteristics, Plasma Testosterone Level and some Immunogenetic Constituents in seminal plasma proteins of Baladi Bucks buffaloes . Global Veterinaria, 13 (5): 680-689 

172- Hanafi, E.M. ; Ahmed, W.M. ; Zaabal, M.M. and El Khadrawy, H.H.(2014): Genomics control of folliculogenesis in animals with rmphasis to buffaloes . Global Veterinaria, 13 (5): 680-689 

173- Othman, O.E.; Ahmed, W M.; Balabel, E.A. ; Zaabal, M.M. . El Khadrawy, H.H. and Hanafi, E.M.(2014): Genetic polymorphism of CYP19 gene and its association with ovarian activity in Egyptian buffaloes. Global Veterinaria, 12 (6) : 768-773 

174- Zaabal, M.M.; Ahmed,W.M. ;. Hanafi, E.M. and EL-khadrawy, H.H. (2014): Ovarian Activity in Purebred Arabian Mares in Relation to some Blood Protein Gene Markers World Applied Sc. J., 

175- Zaher, K.S. and Ahmed, W.M.(2014): Bovine Leukemia Virus Infection in Dairy Cows in Egypt. Academic Journal of Cancer Research, 7 (2): 126-130. 

176- Zaher, K.S. and Ahmed, W.M.(2014):The Role of Foot and Mouth Disease Outbreak in 2012 on Egyptian Small Ruminants and Pigs. Global Veterinaria, 12 (5): 583-587 

177- Zaher, K.S. and Ahmed, W.M.(2014): Isolation and Identification of Field Isolate of Peste des petits ruminants Virus in Egypt. Global Veterinaria, 12 (5): 667-672 


178- Ahmed, W.M; Hanafi, E.M.; Ali,A.H.; Zaabal, M.M. and Elkhadrawy, H.H.(2015): Some managemental and reproductive aspects in relation to subsequent fertility in transitional cows. Middle-East Journal of Scientific Research 23 (11): 2748-2755. 

179- Ali, A.H. and Ahmed, W.M. (2015): Impact of Post Partum Due Care on Fertility in Farm Animals. Global Veterinaria, 15 (2): 169-174. 

180- El-Khadrawy, H.H.; Ahmed, W.M.; Zaabal, M.M. and Hanafi, E.M.(2015): Lights on Drugs Used for Treatment of Ovarian Disorders in Farm Animals Global Veterinaria, 14 (3): 393-399.

181- El-Khadrawy, H.H ; Ahmed, W.M.; Zaabal, M.M. and Hanaf, E.M.(2015): Strategies For diagnosis and Treatment of Uterine Infection in Bovines. Global Veterinaria 15 (1): 98-105. 

182- Hanafi, E.M. ; Ahmed, W.M.; Zaabal, M.M. and El-Khadrawy, H.H.(2015): Quorum Quenching: Unexplored Strategy to Control Animal Genital Tract Bacterial Infection Middle-East Journal of Scientific Research 23(8): 1954-1962.

183- Zaabal, M.M.; Ahmed,W.M. ;. Hanafi, E.M. and EL-khadrawy, H.H. (2014): Further Contribution on Correlation Coefficients among Gene Markers of Some Blood Proteins in Fertile Purebred Arabian Mares. Intern. J. Genetics, 5(1): 15-17. 

184- Zaher, K.S. and Ahmed, W.M. (2015):Observations on the Epidemiology of Bluetongue Disease. Global Veterinaria, 14 (6): 800-804.

185- Zaher,K.S. and Ahmed, W.M. (2015): Molecular Characterization of Bluetongue Disease. Middle-East Journal of Scientific Research 23 (11): 2689-2694. 


186 - Endale Teshome, Assefa Kebede ,Nejash Abdela and Ahmed, W.M (2016): Ovarian Cyst and Its Economic Impact in Dairy Farms: a Review. Global Veterinaria, 16 (5):461-471, 2016 

187 -Natnael Bekele, Mekeonnen Addis, Nejash Abdela and Ahmed, W.M, W.M.(2016): Pregnancy Diagnosis in Cattle for Fertility Management: A Review. Global Veterinaria, 16 (4): 355-364 

188 - Nejash Abdela and Ahmed, W.M (2016): Risk factors and economic impact of dystocia in dairy cows: A systematic review, J. Reprof. Infert., 7 (2): 63-74, 2016 

189 - Wubishet Fikadu, Dechassa Tegegne, Nejash Abdela and Ahmed, W.M (2016): Milk Fever and its Economic Consequences in Dairy Cows: a Review Global Veterinaria, 16 (5): 441- 452 

190 - Zaabal, M.M. ;Ahmed, W.M.; Hanafi , E.M. and El Khadrawy, H.H. (2016) : Observations on Brucellosis in Male Camels (Camelus dromedaries) withEmphasis on Genetic Polymorphism of Some Blood Protein Loci. Middle-East Journal of Scientific Research 24 (10): 3121-3124 

191-Zaher, K.S. and Ahmed, W.M.(2016): DNA Vaccines against Viral Diseases of Aquaculture. Advancer in Biological Research,10(6): xx -xx 

192-Zaher, K.S. and Ahmed, W.M.(2016): The Role of DNA Vaccine as a Control Measure for Viral Diseases. World Applied Science Journal, 34(12) : 34 (12): 1639-1642, 


193 -Saber, Y.H.; Seida, A.A.; Ragab, R.S.; Balabel, E.A. ; Hanafi, E.M. and Ahmed, W.M.(2017): Oxidant/antioxidant status and cyp19 gene polymorphism in crossbred cows in relation to ovarian inactivity. Global Veterinaria, 18(1): 14- 19 

194-Saber, Y.H.; Ahmed, W.M.; Hanafi; E.M , Seida, A.A and Ragab, R.S .[2017): Observations on the Current Incidence and Predisposing Factors for Ovarian Inactivity in Local Bred Cows at Upper Egypt . Journal of Reproduction and Infertility 8 (1): 28-34 

195 -Tucho, T.T. and Ahmed , W.M. (2017): Economic and Reproductive Impacts of Retained Placenta in Dairy Cows. Journal of Reproduction and Infertility 8 (1): 18-27 

196 -Zaabal, M.M. and Ahmed, W.M.(2017): The role of transferrin allele in resistance to brucellosis in camels (Camelus dromedaries). Global Veterinaria, 18(1): 1 -4