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Dr. Oyewusi, Joshua Adeoye obtained his first degree (DVM), MSc (Veterinary Pharmacology) and Ph.D
(Veterinary Pharmacology) in 1995, 2009 and 2018, respectively from University of Ibadan. He worked
as a contractor staff in the security dog section, Shell Pet. Development Company, Warri; as a Resident
Veterinary Surgeon attached to Gan-Rovet Nig. Ltd., Warri, Delta state (1995-1997). He practiced as a
private Small Animal Clinician at Alpha Veterinary Clinic and Surgery, Ilorin, Kwara state (1997-2008).
He joined the FUNAAB Veterinary Teaching Hospital as a Veterinary officer (2008) and rose to the
position of Principal Veterinary Officer I (2017). The Lecturing career of Dr. Oyewusi started in 2013 as
an adjunct lecturer before he got appointed as a Lecturer I in the Department of Veterinary Physiology
and Pharmacology, COLVET, FUNAAB. He is currently a Senior Lecturer and Ag. Head of Department.
He served in various committees both within and outside the COLVET, FUNAAB. He has attended
several professional conferences both home and abroad during which he presented some his research
outcomes thus contributing to scientific knowledge.
Dr. Oyewusi is a pastor in Deeper Life Bible Church. He love the company of the youth which influenced
his decision to pastor the youth at district and group of district levels at Deeper Life Bible Church, Warri
and Ilorin, respectively (1995-2006). He is happily married with two children.
a. Doctor of Philosophy (Ph.D) May, 2018
b. Fellow, College Vet Surgeon Nigeria August, 2018
c. Masters of Science (MSc) February, 2009
d. Doctor of Veterinary Medicine (DVM) September, 1995
(a) Research completed
a. In-vitro acaricidal activity of aqueous and methanol extracts of red cultivar Allium cepa L on engorged ticks from naturally infested cattle (2019).
b. Effects of lower doses of methanol extract of Allium cepa bulbs on haematology and histopathology of vital organs of Wistar rats (2018).
(b) Research in Progress
a. Acute toxicity and haematological effects of aqueous extract of
Ageratum conyzoides L. in Wistar rats.
i. Member, Nigeria Veterinary Medical Association (NVMA)
ii. Member, American Chemical Society (ACS)
iii. Member, Nigerian Chemical Society (NCS)
iv. Member, Forum of Nigerian Toxicologists (FONTOX)
v. Member, Society for Medicinal Plants and Economic Development (SOMPED)
i. Eniseyin, F. O., Oyewusi, J. A., Abolaji, A. O., Salihu, T. M., Akande, F. A. & Adenubi, O. T. (2020): In vitro Acaricidal activity of aqueous and methanol extracts of red cultivar Allium cepa L. on engorged female Rhipicephalus (boophilus) annulatus from naturally infested cattle. Presented at Forum of Nigerian Toxicologists Conference, March 11 -12, 2020 (FONTOX), University of Ibadan, Nigeria.
ii. Oyewusi, J. A. (2013): Phytochemical, elemental and acute toxic effects of methanol extract of onion (Allium cepa) bulbs in experimentally treated wista albino rats. Presented at XXXVII (37th) Annual conference of the West African Society for Pharmacology (WASP), October 21 -24, 2013, Lagos, Nigeria.
iii. 49th Annual Congress of the Nigerian Veterinary Medical Association, on November 5 – 9, 2012 at Ekiti State.
iv. Oyewusi, J. A., Otesile, E. B. & Sadiq, N. A. (2011): Efficacy of Flumethrin Pour-on against Ticks on N’Dama/Brown Cross cattle under Field Condition. Presented at the 48th Annual Congress of the Nigerian Veterinary Medical Association, November 21 – 25, 2011 at Ilorin, Kwara State, Nigeria.
v. 47th Annual Congress of the Nigerian Veterinary Medical Association, at Benue State, on October 4 – 8, 2010.
vi. 46th Annual Congress of the Nigerian Veterinary Medical Association, at Anambra State, November 19 – 23, 2009.
Journals Articles in Print:
1. Ajadi, R.A., Kasali, O.B., Makinde, A.F.M., Adeleye, A.I., Oyewusi, J.A. and Akintunde, O.G. (2009): Effects of Midazolam on the Anaestheticproperties and Safety of Ketamine and Xylazinecombination in Guinea Fowls (Numidameleagrisgaleata). Journal of Avian Medicine and Surgery 23(3): 199-204, Published By: Association of Avian Veterinarians, USA. Available online at http://www.bioone.org/doi/full/10.1647/2008-036.1
2. Oyewusi, I.K., Otesile, E.B., Talabi, A.O. and Oyewusi, J.A. (2009): Effects of Strongylosis on some blood parameters in Goats. ASSETJournal of Agricultural Science and Environment 9 (1): 70-74, Published by Federal University of Agriculture, Abeokuta, Nigeria.
3. Oyewusi, J.A., Saba, A.B. and Oridupa, O.A. (2010): The Course of Trypanosomosis in Laboratory Rabbits Following Experimental Infection, Treatment and Re-infection: Haematological Study. European Journal of Scientific Research. ISSN 1450-216X Vol.42 No.3 (2010), pp.397-405, Published By EuroJournals Publishing, Inc. Available online at http://www.eurojournals.com/ejsr.htm.
4. Oyewusi, J.A.,Otesile, E.B., Sadiq, N.A. (2011): Efficacy of 1% Flumethrin Pour-on (BayticolR) against ticks on N’Dama/Brown cross Cattle under field conditions. Journal of Natural Sciences, Engineering and Technology. Vol. 10(2): 105-110, Published by Federal University of Agriculture, Abeokuta, Nigeria.
5. Ajadi, T. A., Oyewusi, J.A.,Adeleye, I. A. and Adebayo, O.O. (2012): The use of sonography for Prediction of pregnancy status in a few canine cases. Tropical Veterinarian 29 (No 4): 1-9, Published by Faculty of Veterinary Medicine, University of Ibadan.
6. Oyewusi, J.A. and Saba, A.B. (2013): Biochemical response of rabbits following experimental Trypanosoma bruceibruceiinfection, treatment and re-infection. Sokoto Journal of Veterinary Sciences11(2): 36-42, Published Faculty of Veterinary Medicine, Usmanu Danfodio University, Sokoto. Available online at http://www.sokvetjournal.net/.
7. Awoyomi, J.O., Biobaku, K.T., Kehinde, O.O., Adebowale, O.A. and Oyewusi, J.A. (2013): A Survey of Ethnoveterinary Botanical Remedies in Ogun State and Their Public Health Implications. Nigerian Journal of Animal Production. Vol. 40(2) Page 198-208, Published by the Nigerian Society for Animal Production.
8. Abakpa, S.A.V., Daramola, O.O., Takeet, M.I., Akande, F.A. and Oyewusi, J.A. (2013): Anti-trypanosomal effect of the aqueous extract of Moringaoleifera leaf and associated haematological changes in rats infected with Trypanosoma brucei. International Journal for Agrico Veterinary and Medical Sciences (IJAVMS). Vol. 7 (4): 135-141.
9. Okwelum, N., Iposu, S.O, Ihasuyi P.S., Sanwo K., Oduguwa B.O, Amole T.A., Shittu O.O., Famakinde S.A., Olugbogi E.I., Takeet O.V.A., Oyewusi J.A. and Yusuf, M.A (2013): Prevalence of trypanosomainfection in cattle in the Teaching and Research Farm (TREFAD), University of Agriculture, Abeokuta, Ogun State, Nigeria. Global Journal Biology, Agriculture and Health Sciences.Vol.2 (3):161-164, Published by Longdom publishing. Available online at https://www.longdom.org/.
10. Olukunle J O., Jacobs E. B., Oyewusi, A. J. and Abatan M O (2013). Hypoglycemia and Hypolipidemia effects of Acalyphawilkesiana in alloxan-induced diabetic rats. Tropical Veterinarian. 31(4); 42-50. Published by Faculty of Veterinary Medicine, University of Ibadan.
11. Awoyomi, O.J., Oyewusi, J.A.,Talabi, A.O., Oyewusi, I.K., Biobaku, K.T., Mustapha, O.A. and Agbaje, M. (2014): Isolation of Aeromonashydrophila in a case of wound infection in cattle in Nigeria. Nigerian Journal of Animal Production 41: (No 1) 213-219, Published by the Nigerian Society for Animal Production.
12. Ajibola, E.S., Biobaku, K.T., Oyewusi, J.A.,Rahaman, S.A. and Okwelum, N. (2014): Observation of some renal function indices in dogs under Ketamine-XylazineAnaesthesia. Sokoto Journal of Veterinary Sciences. (2014) 12(2):47-51, Published Faculty of Veterinary Medicine, Usmanu Danfodio University, Sokoto. Available online at http://www.sokvetjournal.net/.
13. Oyewusi, I K., Anifowose, I.O., Famuyide, I. M., Oyewusi, J.A., Babatunde, B. A., Oguntusi, I. O. and Talabi, A. O. (2014). Effects of Dermatophylosis on Productivity of Cattle in a Ranch in Abeokuta, Nigeria. Nigerian Journal of Animal Science. 16 (2): 335-338, Published by official Animal Science Association of Nigeria (ASAN). Available online at https://www.ajol.info/index.php/tjas.
14. Oyewusi, I K., Babatunde, B. A., Anifowose, I. O., Famuyide, I. M., Oyewusi, J.A., Olugbogi, E. I., and Talabi, A. O.(2014).Prevalence and Predilection sites of lice infestation on cattle in Abeokuta, Nigerian. Nigeria Journal of Animal Production. 14(2): 202-205, Published by Nigerian Society for Animal Production. www.ajol.info/index.php/njap.
15. Olunkunle J. O., Sogebi E. A. O. and Oyewusi J.A. (2014). Anti-inflammatory and Analgesic Potential of Aqueous Leaf Extract of Tithonia Diversifolia Rodents. Journals of Natural Sciences, Engineering and Technology 13 (1); 82-90, Published by Federal University of Agriculture, Abeokuta. Available online at https://journal.unaab.edu.ng/index.php/JNSET/article/view/1495.
16. Oyewusi J.A., Oyewusi, I. K., Takeet V. O., Mustapha, O. A., Awoyomi, O. J. (2015). Ovine coccidiosis: A case report. Journal of Veterinary Advances 5 (6):1023-1028. Available on line at https://pdfs.semanticscholar.org/e280/5282bcf54d99f8511b6bdb0bce85e6929b4f.pdf.
17. Olukunle J.O., Jacobs, E.B., Oyewusi, J.A., Durotoye, L.A. and Adeleye, E.O. (2015). Effects of Aqueous Leaf Extracts of Tithoniadiversifolia (Mexican Sunflower) on Semen Characteristics and Morphology in male Wistar albino rats. Nigeria Journal of Animal Production. Vol. 42 (2); 263-270, Published by Nigerian Society for Animal Production. www.ajol.info/index.php/njap.
18. Olunkule J.O, Jacobs E.B, Adeleye, E.O, Oyewusi, J.A. and Durotoye, L.A (2015). Effects of Aquoeus Leaf Extract of Acalyphawilkesiana on Semen Morphology and Characteristics in male Wistar Albino rats. Nigerian Journal of Animal Science 2: 162-168.
19. Daramola, J.O., Adekunle, E.O., Oke, O.E., Onagbesan, O.M., Iyasere, O.S., Williams, T.J., James, I.J., Oyewusi, I.K. and Oyewusi, J.A. (2015). Effects of pyridoxine supplementation or in combination with other antioxidants on motility, in vitro capacitation and acrosome reaction of goat buck spermatozoa during cryopreservation. Small Ruminant Research 131 (2015) 113–117, Published by Elsevier. Available online at https://doi.org/10.1016/j.smallrumres.
20. Oyewusi J.A., Saba, A.B., Olunkunle, J.O. (2015). Phytochemical, elemental and acute toxic effects of methanol extract of onion (allium cepa) bulbs in wista albino rats experimentaly pre-exposed and rested for a week. Vom Journal of Veterinary Science. 10: 65 – 74, Published by National Veterinary Research Institute.
21. Daramola, J. O., Adekunle, E. O., Oke, O. E., Onagbesan, O. M., Oyewusi, I. K. and Oyewusi, J.A. (2015). Effects of coconut (Cocos nucifera) water with or without egg-yolk on viability of cryopreserved buck spermatozoa. Animal reproduction 13 (2): 57-62, Published by Colegio Brasileiro de Reproducao Animal. Available online at www.cbra.org.br/portal/downloads/publicacoes.
22. Daramola, J.O., Adekunle, E.O., Onagbesan, O.M., Oke, O.E., Ladokun, A.O., Abiona, J.A., Abioja, M.O., Oyewusi, I.K., Oyewusi, J.A., Isah, O.A., Sogunle, O.M., Adeleke, M.A. (2016). Protective effects of fruit-juices on sperm viability of West African Dwarf goat bucks during cryopreservation. Animal Reproduction. 13 (1): 7-13, Published by Colegio Brasileiro de Reproducao Animal. Available online at www.cbra.org.br/portal/downloads/publicacoes.
23. Amrevuawho, M.O., Akinyemi, A.A., Oyewusi, J.A., Bankole, O.M and Ezeri, G.N.O (2016). Effects of Onions (Allium cepa) and Chloramphenicol on Haematology Parameters, Histopathology and Survival of Catfish Claris gariepinus (Burchell, 1822) sub-adult infected with Pseudomonas aeruginosa. Vom Journal of Veterinary Science Vol. 11, 2016, 1-12, Published by Nigeria Veterinary Research Institute.
24. Daramola, J.O., Oyewusi, J.A., Sorongbe, T.A., Adekunle, E.O., Iyanda, O.A., Onanuga, O.D., Olayemi, F.D., Falujo, F.D., Tanimowo, L.S., Omyema, P.O., Sobowale, O.A., Sodiya, O.O. and Salawu, D.O. (2017). Effects of mucuna seed extract on sperm functional integrities and seminal oxidative stress indices of vitrified goat semen. Journal of Agricultural Sciences. 62(2); 155-166. Published by Faculty of Agricultural Sciences, Sabaragamuwa University of Sri Lanka. Aailable online at www.doiserbia.nb.rs/img/doi/1450-8109/2017/1450-81091702155O.pdf.
25. J.O. Daramola, E.O. Adekunle, O.E. Oke, O.M. Onagbesan, T.J. Williams, O.S. Iyasere, I.J. James, I.K. Oyewusi, J.A. Oyewusi (2017). Effects of pyridoxine in combination with different antioxidants on viability and oxidative stress parameters of cryopreserved goat buck semen. Archivos de Zootecnia 66 (253) 15–21. Published by Universidad de Cordoba. Available online at https://dialnet.unirioja.es/descarga/articulo/5959608.pdf.
26. Takeet, M.I, Oyewusi, J.A., Abakpa, S.A.V., Daramola, O.O and Peters, S. O (2017). Genetic diversity among Babesiarossi detected in naturally infected dogs in Abeokuta, Nigeria, based on 18S rRNA gene sequences. Acta Parasitologica. 62(1), 192-198. Published by Walter de Gruyter GmbH. Available online at https://www.researchgate.net/publication/312040235. DOI: 10.1515/ap-2017-0023
27. Oyewusi J.A., Oridupa, O. A., Saba, A. B., Oni, O., Oyewusi, I. K. and Mshelbwala, M. F (2017). Assessment of cardiotoxic potential of methanol extract of red cultivar Allium cepa. Sokoto Journal of Veterinary Sciences. 15(3): 69-77, Published Faculty of Veterinary Medicine, Usmanu Danfodio University, Sokoto. Available online at http://www.sokvetjournal.net/.
28. Oyewusi J.A., Oridupa A. O., Saba A. B., Olurode A. S., Oyewusi I. K., Olukunle J. O. and Adebiyi A. A. (2018). Testicular and spermatotoxic potential of methanol extract of red cultivar Allium cepa in rats. Journal of Complementary and Integrative Medicine. 15 (4): 2018, Published by Walter de Gruyter GmbH. Available online at https://www.degruyter.com/view/j/jcim.2018.15. DOI: 10.1515/jcim-2017-0102.
29. Oyewusi J.A., Oridupa A. O., Saba A. B., and Oyewusi I. K (2019). Effect of Methanol Extract of Red Cultivar Allium cepa L. on Serum Biochemistry and Electrolytes of Rats Following Sub-Chronic Oral Administration. Journal of Basic and Clinical Physiology and Pharmacology. 31 (2): 2019, Published by Walter de Gruyter GmbH. https://www.ncbi.nlm.nih.gov/pubmed/31800393.
30. Oyewusi, I K., Takeet, M I., Oyewusi, J.A., Talabi A O, Otesile, E B (2019). Molecular detection and haematological evaluation of trypanosomosis in naturally infected sheep in Abeokuta, Nigeria. Alexandria Journal of Veterinary Sciences. 63 (1): 129-134 Published by Faculty of Veterinary Medicine, Alexandria University, Egypt. Available online at https://www.researchgate.net/publication/337037622.
31. Oyewusi, I. K., Takeet, M. I., Oyewusi, J. A., Talabi, A. O., Sonibare, A. O. & Otesile, E. B. (2020): Response of three Nigerian Breeds of Sheep Experimentally Infected with Trypanosoma Vivax to Diminazene aceturate therapy. Folia Veterinaria. 64(3): 13-21. Published by University of Veterinary Medicine and Pharmacy in Košice, Komenského, Slovakia. Available on line at https://www.researchgate.net/publication/347126453. DOI: 10.2478/fv-2020-0022
32. Oyewusi J.A., Oridupa A. O., Saba A. B., Oyewusi I. K and Olukunle J. O. (2020). Anti-inflammatory and analgesic effects of methanol extract of red cultivar Allium cepa bulbs in rats and mice. Journal of Basic and Clinical Physiology and Pharmacology. 31 (2): 1-6, Published by Walter de Gruyter GmbH. https://www.ncbi.nlm.nih.gov/pubmed/31800393.
33. Adekoya O.A., Adenubi O.T., Adebayo, O.O. Adebowale O.O., Oyewusi, J.A. and Olukunle J.O. (2020). Open Vets. 2020; 1: 1–8. Available on: https://doi.org/10.1515/ovs-2020-0102.
34. Thomas F.C., Alarape O.O., Oliwo O.M., Omoshaba E., Ojo O.E., Oyewusi J.A. & Ajibola E.S. (2021). Somatic cell counts and bacteria in milk from two nomadic herds in Abeokuta, Nigeria. Sokoto Journal of Veterinary Sciences. 19 (2): 112 – 120. Available on: http://dx.doi.org/10.4314/sokjvs.v19i2.6
35. Ajibola E.S., Adebayo O.O., Abakpa S.A.V., Oyewusi J.A., Adeleye A.A., Makinde F.A., Hassan O. (2021). A suspected case of digitalis toxicity secondary to therapeutic management of congestive heart failure in a boerboel dog. Nigerian Veterinary Journal Acceptance letter dated 23/11/2020.
36. Oloye A.A., Oyewusi J.A., Omidiji M.A., Awoyomi O.J., Olurode S.A., Ola-Davis O.E. and Oyeyemi M.O (2021). Effects of Spondias mombin leaf extracts on testicular histology and semen characteristics of prepubertal (juvenile) Wistar rats. Savannah Veterinary Journal. Acceptance letter dated June 30, 2021.
37. Oyewusi A.J., Eniseyin F.O., Abolaji, A.O., Salihu T., Akande F.A. and Adenubi O.T. (2021). In-vitro acaricidal activity of aqueous and methanol extracts of red cultivar Allium cepa L. on engorged female Rhipicephalus (Boophilus) annulatus from naturally infested cattle. Savannah Veterinary Journal. Acceptance letter dated July 27, 2021.
Edited Conference Proceedings
38. Oyewusi, I. K., Takeet, M., Talabi, A. O., Oyewusi, J.A., Adeleye, O. O., and Otesile, E. B (2015):Prevalence of Trypaosome species in Nigerian breeds of sheep in Abeokuta and its environs using polymerase chain reaction, Proceedings of the British Society of Animal Science and the Association of Veterinary Teaching and Research Work.
39. Adeleye, O,. Oluwatosin, O. O., Jegede, A. V., Fafiolu, O., Oyewusi, J.A. and Sigbeku, O. T (2019). Residues of Melamine Persist in Meat of Broiler Fed In-feed Larvacide after Mandatory Withdrawal Period. Proceedings of the Tropentag, September 18-20, 2019, Kassel.
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