Dr.

AJAYI Olusola Lawrence 

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Short Profile

My research interest, as an anatomic pathologist, over the years covers a broad range of both infectious and non-infectious diseases.

My major research focus has been on renal pathology of leptospirosis in domestic animals. I have been able to investigate the source, aetiology and pathogenesis of renal failure in domestic animals due to leptospirosis. Various pathogenic leptospira serovars have been identified as the aetiology of renal failure in pig, dog, city rats, cattle and some captive wildlife and the zoonotic implications of the organism have been emphasized.

I have also been involved in the investigation of avian diseases in which many nutritional and infectious diseases have been investigated and published.

During my research activities, I have used histopathology as a diagnostic tool to evaluate and examine organs of different laboratory animal models which play a key role in evaluating therapeutic strategies and to identify potential promising plant extracts to treat or prevent various diseases in domestic animals and in humans.

I have also participated in various collaborative research in the field of toxicological pathology. This consists of a combination of knowledge and practical skills used to study the responses of cells, organs, and organisms to various toxic materials.

Over the years, the diseases of Catfish (Clarias gariepinus) have remained uninvestigated and unknown. In the course of my research activities, I have investigated pond level diseases of Catfish such as arborescent organ necrosis, jaundice syndrome, psuedomoniasis and Vibrosis and neoplastic conditions such as fibrosarcoma, hepatic cholangiocarcinoma, hepatocellular carcinoma and papilloma.

This mini-review of my research activities has shown diverse contributions that anatomic pathologists can make to the global scientific endeavour and specifically to the growth and evolution of veterinary pathology in the 21st century.

Ph.D, University of Ibadan 2006 – 2014

MVSC (University of Ibadan 2000 – 2004)

DVM (University of Ibadan 1992 – 1999)

Ekiti Baptist High School, Igede-Ekiti 1982 – 1987

Methodist Primary School, Igede-Ekiti 1974 – 1980

 

Completed
1) In-vivo and in-vitro lipid peroxidation and reticulocytes response associated with anaemia in Leptospira icterohaemorrhagiae infected guinea pigs.

2) Effects of Vernonia Amygdalina and Ocimum Grattissimum on haematological, intestinal fluid and histopathology of vibrio cholerae in infected rats.

3) Isolation and molecular characterization of pathogenic leptospira spp. in slaughtered cattle from two cities in south western Nigeria.

4) A ten-year retrospective study on avian neoplastic diseases in Abeokuta, Ogun State,
Nigeria

5) Cultural and molecular detection of canine leptospirosis in Southwestern Nigeria.

6) Distribution and localization of pathogenic leptospiral organism in the renal parenchyma: A hallmark of acute or chronic infection in dogs?

7) Cultural and molecular detection of pathogenic leptospira spp. in wild rats from three south western states of Nigeria.

8) Renal histopathological changes in rats naturally infected with Pathogenic leptospiral organism.

9) Renal and Hepatic Histopathological changes in canine leptospirosis in South Western Nigeria.

10) Ocular tumors in domestic chickens: Radiological, Histopathological, Immunohistochemical and electron micrographic evaluations.

11) Effects of Spent lubricating Oil on Feed Consumption, Feed Conversion Efficiency,
Growth and Mortality Rate in Domestic Chickens (Gallus gallus domesticus).

12) Ovarian Adenocarcinoma in Nera-Black Chickens in Nigeria: Histopathological, Immunohistochemical and Electron micrograph evaluations.

13) Canine cutaneous tumours in three States of South Western Nigeria: Cytological,
Histopathological and immunohistochemical evaluations

14) Field Outbreak of Cavernous Haemagiosarcoma in Isa-Brown Chickens in Nigeria:
Histopathological, Immunohistochemical and Electron microscopic evaluations

15) Prevalence and Abomasal Pathology of Eimeria gilruthi in West African Dwarf goats in South Western Nigeria.

16) Prevalence and hepatic pathology of clonorchis sinesis in African-clawed toad (bufo bufo) in Abeokuta, Nigeria.

17) Pulmonary Adenocarcinoma in an African Cane Rat: Cytological, Histopathological and immunohistochemical evaluations

18) Bone Marrow Pathology in Canine Babesiosis: Cytological, Molecular, Histopathological and immunohistochemical Evaluations.

19) Pulmonary pathology of Zoo Animals from three Zoological gardens in southwest Nigeria (2014-2019). A retrospective study

20) Apoptosis in selected organs of leptospira icterohaemorrhagiae infected guinea pigs; histochemical, immunohistochemical and electron microscopic evaluations.

21) Cytological, histopathological and imunohistochemical evaluations of canine papillomatosis

In progress
1) Cytological and molecular evaluations of popliteal lymph nodes in canine
Trypanosomosis.

2) A survey of the abnormalities of the male genitalia of slaughtered cattle in
Lafenwa abattoir, Abeokuta.

3) Disseminated mycotic aortitis in Nera-black chickens.

4) Regional lymphadenopathy in bovine trypanosomosis: cytological, haematological and
molecular evaluations

5) Vaginal squamous metaplasia and keratinization: cause of reproductive failure in laying
birds.

6) Pathological findings in lungs, heart, kidneys and livers of rats (Rattus rattus)
Naturally infected with Angiostrongylus catonesis in Ibadan, Nigeria.

i) Tertiary Educational Trust Fund for Ph.D bench work 2012.

ii) Federal Government Scholarship for Postgraduate programme (Master). 2002

* Member, Nigerian Veterinary Medical Association (NVMA)

* Registered Veterinary Surgeon (V.C.N. Reg. No. 3111), Jan. 1999 )

86 Ajayi, O.L., Omotainse, S.O., Olaniyi, M.O., Fasina, O.O., Oluwole, O.A., Makinde, A.F. and Oyewusi, I.K. (2007) Patent Ductus Arteriosus with glomerular mesangiolysis in a White-Fulani calf in Nigeria. In “The Veterinarian and the Challenges of the Environment”Proceedings of the 44th Annual Congress of the Nigerian Veterinary Medical Association (NVMA). October 22nd -27th, Petroleum Training Institute, Effurum, Delta state.B.D.Remi-Adewunmi, A.Z.Hassan and I.N.Ogo (Eds) pp 209-211. Published by Nigeria Veterinary Medical Association.

87 Ajibola E.S, Okediran B.S, Olaniyi M.O, Ajayi O. L, Oluwole O.A, Adebayo A.O and Olude M.A. (2007) Paraphimosis in a grower pig- a case report. In “The Veterinarian and the Challenges of the Environment”. Proceedings of the 44th Annual Congress of the Nigerian Veterinary Medical Association (NVMA). October 22nd -27th, Petroleum Training Institute, Effurum, Delta State.B.D.Remi-Adewunmi, A.Z.Hassan and I.N.Ogo (Eds) pp 333-334. Published by Nigeria Veterinary Medical Association.

88 Omotainse, S.O., Ajayi, O.L., Antia, R. E., Akande, F.A., Olaniyi M.O.(2008). Clinical manifestation of a natural Canine hepatozoonosis in an Alsatian dog in Nigeria. In “The Veterinarian and the Imperatives of Change”. Proceedings of the 45th Annual Congress of the Nigerian Veterinary Medical Association (NVMA). October 20th-24th, 2008, Conference Hall, Imo Concord Hotel, Owerri, Imo State. Prof. J.O. Hambolu, Ajogi, I. Rekwot, B.D.Remi-Adewunmi, A.Z.Hassan and M. Bello (Eds) pp.232-233. Published by Nigeria Veterinary Medical Association.

89 Adenubi O.T., Ajayi O.L., Ajadi T.A., Akande F.A. Olukunle J.O., Agbaje M and Akintunde D.S. (2011) Toxicity studies of the ethanolic extract of Laurus nobilis (Bay leaves) in male wistar rats Proceeding of the 36th Annual conference, Nigeria Society for Animal production, March 13th – 16th, 2011, University of Abuja, Nigeria. Adeniji A.A. Olatunji E.A., Olafadehan O.A and Gana E.S. (Eds) pp 161-163. Published by Nigeria Society of Animal Production.

90 Adeleye O.E., Adeleye A.I. & Ajayi O.L. (2009). Infectious bursal disease in a flock of Black Nera Pullets in Abeokuta: A case Report. Proceedings of the 46th Annual Conference of the Nigerian Veterinary Medical Association (NVMA). October 20th-24th, 2009, Conference Hall, Imo Concord Hotel, Anambra State. Prof. F.O. Fasina, and Kamani J. (Eds) pp.92-94. Published by Nigeria Veterinary Medical Association.

i) PhD Thesis
Serovars and renal pathology of leptospirosis in dogs, cattle and
wild rats, and its pathogenesis in a guinea pig model. 2014

ii) Master’s Dissertation
Effects of spent lubricating oil consumption on haematology and
tissue pathology of domestic chicken (Gallus gallus domesticus). 2005

iii) Articles in learned journals

1
*†Ajayi O. L, Antia R. E., and Oladipo T. M.(2021): Dissemination kinetics and pathology of canine Leptospira icterohaemorrhagiae isolate in a guinea pig infection model.Journal of immunoassay and immunochemistry. 42 (3) 1-21. Published by Taylor and Francis, United kingdom. https://doi.org/10.1080/15321819.2020.1863818

2 *†Ajayi O.L., Antia E.R., Esther O.O., Oladipo T.M., Olaniyi O.M., Awoyomi O.J. (2020): Detection of pathogenic Leptospira spp. in goats from slaughterhouses in southwestern Nigeria using isolation, histochemistry and immunohistochemistry. Macedonia Veterinary Review 44 (1): i-xii Published by the Faculty of Veterinary Medicine – Skopje at Ss. Cyril and Methodius University in Skopje. https://doi.org/10.2478/macvetrev-2020-0031

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*†Ajayi O.L., R.E. Antia, T.M. Oladipo, O.S. Aduloju. (2020): Sebaceous carcinoma in an 8-year old female Boerboel. Revue Vétérinaire Clinique. 42 (3) (In press) Published by Elsevier, France. https://doi.org/10.1016/j.anicom.2020.10.001

4 *Oyenekan I.O, M.O Ilugbo, O.O Adebayo, A.A Adebiyi, S.A Koleosho, O.L Ajayi, R.A Ajadi Diagnosis and surgical management of acanthomatous ameloblastoma in a 5-month-old female Boerboel puppy. Sokoto Journal of Veterinary Sciences, 18(4): 239 – 244. Published by Faculty of Veterinary Medicine Usman da fodio University, Sokoto, Nigeria. https://dx.doi.org/10.4314/sokjvs.v18i4.9

5 *Abakpa, S.A.V., Ajayi, O.L., Mshelbwala, F. M., Olaniyi, M.O., Akintunde, O.G. Adebiyi, A.A., Popoola, D.D., Makinde, A.F., Adeleye, A.I. and Idowu, Concurrent Hepatozoonosis and Transmissible Venereal Tumour in a 10-Year Old German Shepherd Dog In Abeokuta, Nigeria. Nigeria Journal of Parasitology 43: 1; 195-199. Published by Parasitology and Public Health Society of Nigeria

6
*†Ajayi O. L., Olaniyi M. O., Alaka O. O., Antia R. E., Oladipo T. M. (2020): Uterine Leiomyosarcoma associated with Cystic endometrial polyps, chondriod metaplasia and uterine horn intussusception in a greater cane rat (Thryonomys swinderianus) Macedonian Veterinary Review; 43 (2): 197-204. Published by the Faculty of Veterinary Medicine – Skopje at Ss. Cyril and Methodius University in Skopje
DOI: https://doi.org/10.2478/macvetrev-2020-0019

7 *†Ugochukwu, I. C. I., Agina O. A., Omeke J. N., Aneke, C. I. Adamu L. F., Ajayi, O. L., Ibrahim N. D. G., Njoku C. I., Sackey A. K. B., Ihedioha, J. I. (2020): An appraisal of Canine Transmissible Venereal Tumour with emphasis on molecular biology and pathology. Thai Journal of Veterinary Medicine. 50(1): 1-12. Published by Faculty of Veterinary Science Chulalongkorn University Pathumwan, Bangkok 10330 THAILAND, Thailand https://he01.tci-thaijo.org/index.php/tjvm/article/view/243251/165159

8 *Olaniyi, M.O., Awoyomi, O.J. Akinniyi, O., Adebiyi, A.A., Alaka, O.O., Ajayi, O. L., Jubril, A. J., Jarikre, T.A & Emikpe, B.O (2020): Restrospective study of swine respiratory diseases in Ogun and Oyo states, Nigeria: Immunochemical detection of Mycoplasma hyopneumoniae. Sokoto Journal of Veterinary Sciences 18 (2): 72 – 82.
Published by Faculty of Veterinary Medicine Usman da fodio University, Sokoto, Nigeria. Available Online: DOI: 10.4314/sokjvs.v18i2.3

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11 *†Ajayi, O. L., Antia R. E., Awoyomi O. J., Oladipo T. M. & Adebowale O. O. (2020). Cultural, histochemical, and immunohistochemical detection of pathogenic Leptospira species in the kidneys of cattle slaughtered in two abattoirs in Southwest Nigeria, Journal of Immunoassay and Immunochemistry, 41:3, 337-353, Published by Taylor and Francis, United kingdom. DOI: 10.1080/15321819.2020.1736096

*Olaniyi, M.O., Ekum, D.E., Omoshaba, E.O., Sonibare, A.O., Ajayi, O.L., Ojo, O.E. Faramade, I. Mustapha O.A., Alaka O.O. (2020). Pathomorphological changes and Bacterial pathogens Associated with swine pneumonias in Southwest Nigeria. Journal of Natural Science, Engineering and Technology. 19(1&2): 8-24. Published by the Federal University of Agriculture Abeokuta.

*†Olakunle S Tiamiyu, Oladosu G.A, Anifowose O.R, Ajayi O.L. (2020): Pathogenicity and Antibiotics Sensitivity Profile of Aeromonas Bestiarum Used In Experimental Infection of Different Developmental Stages of Clarias Gariepinus Journal of Aquaculture, Marine Biology & Ecology, 1 1-6. Available online: https://kosmospublishers.com/wp-content/uploads/2020/03/

12 *†Olaniyi, M. O., Ajayi, O. L., Alaka, O. O., Mustapha, O. A. Brown, C. C., Shields, J. P., Ard, M. B., Nagy, T. (2020) Immunohistochemical and Ultrastructural studies of Mycoplasma hyopneumoniae strain in naturally infected pigs in Nigeria. Folia Veterinaria, 64, 1: 1-10, Published by the University of Veterinary medicine and Pharmacy in Kosice, Slovak Republic. DOI: https://doi.org/10.2478/fv-2020-0001

13 *Oladele O.O., Olufemi, B. E., Ajayi O. L., Ameji S. N., Ntiwunka U.G. (2019): Studies on Experimental Pseudomoniasis and Vibriosis in African Catfish (Clarias gariepinus) (Burchell, 1822) Vom Journal of Veterinary Science 14, (1): 60 – 74. Publised by research institute Vom Nigeria.

14 *†Oghenochuko O.M, Olukunle J. O., Adenubi O. T., Ajayi O. L., Mshelbwala, F. M., Abdulraheem, I. Apantaku, J. T., Takeet, A., Omoniyi T. I. & Ezeri, G. N. (2019) “Lethal Doses and Histopathological Changes in Liver and Kidney of Healthy Clarias gariepinus Sub-adult Exposed to Red Allium cepa Linn. Bulb” Pertanika Journal of Tropical Agricultural Science. 42 (3) 1081-1096. Published by the University of Putra, Malaysia

15 *†Okusanya, P. O. Jubril, A. J. Ajayi, O. L., Emikpe B. O. & Taiwo V. O (2019): Histochemical and Immunohistochemical detection of pathogenic Leptospires serovars in tissues of some captive wildlife from a University zoo in Nigeria. Journal of Immunoassay and Immunochemistry 40 (5) 564-572. Published by Taylor and Francis, United Kingdom. https://doi.org/10.1080/15321819.2019.1655650

16 *†Mshelbwala F. M., Ibrahim N. D. G., Saidu S. N A., Azeez A. A., Kwanashie C. N., Anise E. O., Akinleye O. S., Fakilahyel K. A. K., Adebiyi A. A., Ajayi O. L., Olaniyi M. O (2018): Clinical signs, pathomorphological and immunohistochemical findings in the visceral organs of chickens naturally infected with motile salmonella serotypes in Lagos, Ogun and Oyo states, Nigeria. Bulletin of Animal Health and Production in Africa, 66 (2) 181-192. Published by Inter-African Bureau for Animal Resources Nairobi, Kenya

17 *†Omotainse O. S., Akpavie S.O., Ajayi O. L, Otesile E. B and Omotainse S O. (2018): Blood tumor necrotic factor-alpha, erythropoietin and interleukin-9 in the pathogenesis of acute anaemia in Trypanosoma congolense infected rabbits. Bulletin of Animal Health and Production in Africa, 66:501-507. Published by Inter-African Bureau for Animal Resources Nairobi, Kenya

18 *†Lala A.O. Ajayi O.L., Okwelum N., Oso A.O., Fakorede T.V., Adebayo T.A., Jagbojo J.E. (2018): Haematological, biochemical and organ changes in broiler chickens fed varying levels of Morinda lucida (brimstone) leaf meal supplementation in the diets. Tropical Animal Health and Production; 50(5):1005-1010 Available Online: doi: 10.1007/s11250-018-1524-8.

19 *Ajayi O.L., Idowu, A.A., Olaniyi, M.O., Mshelbwala M., Oluwabi, M. T., Omotainse S.O. (2018): Outbreak of cutaneous papilloma in catfish (Clarias gariepinus) (BURCHELL, 1822) in Nigeria. Tropical Veterinarian 36 (4) 249-260. Published by the Faculty of Veterinary Medicine, University of Ibadan.

20 *Ajayi, O. L., Oluwabi, M., Ajadi, R. A., Antia, R. E., Omotainse, S. O., Jubril, A. J. Adebayo, O. O. & Makinde A. F. (2018): Cytomorphological, histopathological and immunohistochemical observations on the histiocytic origin of canine transmissible venereal tumour. Sokoto Journal of Veterinary Sciences, 16 (2). 10-20. Published by Faculty of Veterinary Medicine Usman da Fodio University, Sokoto, Nigeria Available Online: http://dx.doi.org/10.4314/sokjvs.v16i2.2

21 *†Ajayi O. L, Antia R.E, Ojo O E, Olaniyi M.O, Awoyomi O J, Mshelbwala F M, Adebiyi A. A., oluwabi T M and kehinde O O. (2018): Preliminary studies on pathogenic leptospira spp. in slaughtered pigs in Abeokuta, Ogun state, Nigeria. Bulletin of Animal Health and Production in Africa., 66, (1) 23-33. Published by Inter-African Bureau for Animal Resources Nairobi, Kenya. Available Online: https://www.ajol.info/index.php/bahpa/article/view/167754

22 *Mshelbwala, F. M., Ajayi, O. L., Adebiyi, A. A., Olaniyi, M. O., Omotainse, S. O., Omotainse, O. S., Oluwabi, M. T., Ojebiyi, O. E., Akpavie, S. O and Kadiri, A. K. F. (2016): Retrospective Studies on the Prevalence, Morphological Pathology and Aetiology of Renal Failure of Dog in Lagos and Abeokuta, Nigeria. Nigerian Veterinary Journal, 37 (4): 206-216. Published by the Nigeria Veterinary Medical Association. Available Online:/163811-Article%20Text-424042-1-10-20171215.pdf

23 *Mshelbwala, F. M., Adebiyi, A. A ., Ajayi, O. L ., Olaniyi, M. O ., Oloye, A. A.,
Adebayo, O. O., Sanni, I. O., Kadiri, A. K. F., Abakpa, S. A. V. (2017): Rumen Impaction: Retrospective study on the prevalence, clinical findings, gross pathology and causes in sheep and goat reared in the tropical rain forest of Nigeria. Nigeria Journal Animal Production, 44(4): 61-70. Published by Nigerian Society for Animal Production

24 Adebiyi A.A., Bello, O. S., Ajayi O.L., Ajadi, R. A. (2017): Rhabdomyosarcoma in a Seven year Old Male Rottweiler. Tropical Veterinarian. 35 (3) 123-129. Published by the Faculty of Veterinary Medicine, University of Ibadan, Nigeria.

25 Idowu K.R, Agunbiade J.A., Adeyemi O.A., & Ajayi O.L., Fafiolu A.O. Oladipupo O.O (2017): Microbial Evaluation of Earthworm Meal as a Protein source in diets for
Broiler Chicken. Nigerian Poultry Science Journal. 12; 71-76. Published by the Association of Poultry Science of Nigeria

26 Ajadi T. A. Kayode-Adekoya I. T., Ajayi O. L., Adebiyi A. A., Adebayo O. O.(2017): Luteinized Granulosa Cell Tumour in a seven year old female Rottweiler. Tropical Veterinarian. 35 (1) 34-43. Published by the Faculty of Veterinary Medicine, University of Ibadan, Nigeria.

27 Oni, O.O, Owoade A A, Adeyefa CA, Ajayi O.L, Sonibare A.O & Ojo O.E (2017) Experimental reproduction of rotavirus and Salmonella pullorum gastroenteritis in broiler chicks. Sokoto Journal of Veterinary Sciences 15(3): 43–49. Published by Faculty of Veterinary Medicine Usman da fodio University, Sokoto, Nigeria.

28 Akande E. A., Olayemi, M.D., Ajayi O.L., Oni O.O., & Akinkuotu, O.A. (2016) Seroprevalence of swine toxoplasmosis in Ogun State, Nigeria. Nigeria Journal of Parasitology 37: 2; 195-199. Published by Parasitology and Public Health Society of Nigeria.

29 †James, I.J., Osinowo, O.A., Smith, O.F., Bemji, M.N., Williams, T.J., Ajayi, O.L., Oluwole, O. & Olaniyi, M.O. (2017) Effects of bovine somatotropin on milk yield, mammary gland weight and histology in West African Dwarf goats. Archivos de Zootecnia. 66 (254): 173-179. Published by Zootechnics Institute University of Cordoba, Spain. Available Online: DOI: 10.21071/az.v66i254.2319

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31 Olujimi O. O., Ajayi O. L & Oputu O. U. (2016) Toxicity assessment of Olusosun and Igando Leachates using the African Catfish (Clarias gariepinus) as bio-indicator species part 1. Ife Journal of Science 18: 3; 693-701. Published by Faculty of Science Obafemi Awolowo University, Ile-Ife, Nigeria.

Ikenweiwe, N.B., Alimi A.A., Bamidele N.A., Soaga J.O., Oyewusi I.K., Ajayi O. L., Olurode S. A., Otunbusi S. O., Balogun E.A., Ozoje M.O. Adewumi B. A. (2016). Efficacy of Ageratum conyzoides and Terminalia superba to induce ovulation in female catfish (Clarias gariepinus). Journal of Organic Agriculture and Environment. 4: 1, 119-127. Published by Society of Organic Agriculture Project in tertiary institution in Nigeria. http://oaptin.org/index.php/JOAEN/article/view/12

32 Abakpa, S.A.V., Nottidge, H.O., Otesile, E.B. Omotainse, S.O & Ajayi O.L. (2013) Therapeutic effect of the aqueous extract of Moringa oleifera leaves in the management of Alloxan-induced Diabetes mellitus in Dogs. Tropical Veterinarian. 31 (3) 105-112. Published by Faculty of Veterinary medicine University of Ibadan, Nigeria.

33 †Takeet O V A, Arowolo O O, Awotunde J M, Olukunle J O, Adebayo K & Ajayi O L (2016). Determination of cyanide concentration in blood and histopathological effect of cassava waste-based feeding on goats. Bulletin of Animal Health and Production in African, 64, 403-412. Published by Inter-African Bureau for Animal Resources, Nairobi, Kenya.

34 Ikanone, C. E. O., Akinloye, O. A., Ugbaja, R.N., Omotainse, S.O., Ajayi, O.L & Ishopein,T. M. (2017) Effect of sub-acute exposure to bonny light crude oil on plasma biochemistry and liver histopathology of albino rat. Animal Research International 14 (1) 2652 – 2659. Published by Department of Zoology and Environmental Biology, University of Nigeria, Nsukka, Nigeria
35
Oloye A. A, Ola-Davies O. E, Ajayi O. L, Oyeyemi M. O, Olurode S.A & Emikpe B. O (2017) Spermiogram and testicular morphological studies of the buck after treatment with ethanol leaf extract of Spondias mombin. Sokoto Journal of Veterinary Sciences 15(1): 72-76. Published by Faculty of Veterinary Medicine Usman da fodio University, Sokoto, Nigeria http://dx.doi.org/10.4314/sokjvs.v15i1.10

36 Omotainse O.S, Akpavie S .O., Ajayi O. L., Otesile E. B and Omotainse S.O (2016)
Blood tumour necrosis factor-αand the pathogenesis of anaemia in Trypanosoma brucei infected rabbits Sokoto Journal of Veterinary Sciences 14(1): 1-7. Published by Faculty of Veterinary Medicine, Usman da fodio University, Sokoto, Nigeria http://dx.doi.org/10.4314/sokjvs.v14i2.1

37 †Ajayi, O.L., Antia, R.E., Ojo, O.E., Awoyomi, O.J., Oyinlola, L.A. and Ojebiyi, O.G., 2017, ‘Prevalence and renal pathology of pathogenic Leptospira spp. in wildlife in Abeokuta, Ogun State, Nigeria’, Onderstepoort Journal of Veterinary Research 84(1) : 1-9 . Published by Onderstepoort Veterinary Institute, South Africa. https://doi.org/10.4102/ojvr.v84i1.1210

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†Ajadi, T. A., O. L. Ajayi, A. A. Adeniyi and R. A. Ajadi, (2016). Vaginal wall hyperplasia with fold prolapse in an eight-month-old Cane Corso dog, Bulgarian Journal of Veterinary Medicine, 19 ( 3), 252–258. Published by Faculty of Veterinary Medicine, Trakia University Stara Zagora, Bulgaria. DOI: 10.15547/bjvm.917

†Olusoji, M. J., Oyeyemi, O., Asenuga, E., Omobowale, T., Ajayi, O. L., and Oyagbemi, A., (2016): Protective effect of Gallic acid on doxorubicin-induced testicular and epididymal toxicity”, Andrologia. 49 (4) 1-10. Published by Wiley and Sons, U.S.A. URL:https://doi.org/10.1111/and.12635

40 Mshelbwala, F.M., Adebiyi, A.A., Olaniyi, M.O., Ajayi O.L., Omotainse, S.O. (2013): Foreign Body induced hepatic and splenic Abscess in a 3 year old female Dangola Horse. Tropical Veterinarian. 31 (3) 128-134. Published by faculty of Veterinary Medicine, University of Ibadan.

41 Mshelbwala, F.M., Omotainse, S.O., Ajayi O.L., Olaniyi, M.O., Adebiyi, A.A., Takeet, M.I., Adebayo, O.O., & Kasali, O.B. (2015): Canine trypanosomosis: Clinical Observations and morphological pathology associated with natural infection of trypanosome congolense in exotic breeds of Dogs in Abeokuta, Nigeria. Nigeria Journal of Parasitology. 36 (2) 85-90. Published by Parasitology and Public Health Society of Nigeria.

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43 †Shittu, O. B., Ajayi, O.L. Popoola, T. O.S., and Bankole, S. O. (2015): Investigation of Vibriocidal and Antisecretory Activities of Ogi-tutu, Psidium guajava and Vernonia amygdalina as alternative medicine in the treatment of cholera. Journal of African Science and Health, Kenya. 16 (2): 620–628. Published by Makarere medical school, Kenya. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4994574/

†Lala , A. O., Ajayi, O. L., Oso, A.O., Ajao, M.O., Oni, O.O., Okwelum, N, and Idowu, O.M.O. (2016). Effects of dietary supplementation with clay-based binders on biochemical and histopathological changes in organs of turkey fed with aflatoxin contaminated diets. Journal of Animal Physiology and Animal nutrition, 100: 6 1005–1202. Published by Wiley, United kingdom. DOI: 10.1111/jpn.12421

44 †Adeleke M. A, Peters, S.O., Ogunmodede, D. T., Oni, O.O. Ajayi, O.L., Wheto M., Adebambo O.A. (2014) Genotype effect on distribution pattern of maternally derived antibody against Newcastle disease in Nigeria Local Chickens. Tropical Animal health and Production 47: 391-394. Published by Springer, Netherlands. https://link.springer.com/article/10.1007/s11250-014-0728-9

45 Idowu, O.A., Soniran, O.T., Ajayi O.L., Olubi, I.C. (2014): Effects of Morinda Morindiodes Extracts on Organs of Mice infected with Plasmodium Berghei. Nigeria Journal of Parasitology. 35 (1-2) 31-40. Published by Parasitology and Public Health Society of Nigeria.

46 †Olukunle J.O, Jacobs, E.B, Ajayi, O.L, Biobaku, K.T, Abatan, M.O. (2015): Toxicological evaluation of the aqueous extract of Acalypha wilkesiana in Wistar albino rats. Journal of Complementary and Integrative Medicine. 12 (1):53-56. Published by the Society for Acupuncture Research, United kingdom. doi: 10.1515/jcim-2013-0066.

47 Ajayi O. L., Olaniyi M. O., Oni, O. O., Mshelbwala F. M & Oluwabi T. M. (2013): Sperm cell granuloma in a Gobbler (meleagris gallopavo) Tropical Veterinarian. 31 (1) 42-46. Published by Faculty of Veterinary medicine University of Ibadan, Nigeria.

48 †Ajayi, O.L, Oyewusi I. K., Olaniyi, M. O., Oyekunle, M. A., Jagun A.T., Omotainse, S.O., Biobaku K.T., & Kasali, O.B. (2013): Enzootic Nasal Adenocarcinoma: Cytological and Clinicopathological Observations in a West African Dwarf Goat in Nigeria. Bulletin of Animal health and Production in Africa. 61, 231-336. Published by Inter-African Bureau for Animal Resources, Nairobi, Kenya.

49 Abiona J.A., Akinwande O.A., Olabode B.T., Abioja M.O., Ejilude O., Ajayi O.L., Daramola J.O., Ladokun A.O., Osinowo O.A & Onagbesan O.M. (2013): Effect of feed type on growth, spermatozoa production and gonado-somatic index in giant African land snail (Archachatina marginata).Journal of Agricultural Science and Environment 13: 1-9. Published by the Federal University of Agriculture, Abeokuta. Nigeria.

50 †Oloye A. A., Oyeyemi M.O., Ola-davies O. E., Ajayi O.L & Ajayi A.R. (2013): Vital reproductive indicies in non-gravid female rabbits treated with crude ethanol spondias mombin Folia Veterinaria, 57, 1:5-9. Published by the University of Veterinary medicine and Pharmacy in Kosice, Slovak Republic.

51

52
Adeyi, A. O., Idowu, A. B., Mafiana, C. F., Oluwalana, S. A. & Ajayi, O. L (2012): Effects of aqueous leave extract of Ficus exasperata on pathophysiology and histopathology of alloxan-induced diabetic albino rats. Journal of Medicinal Plants Research. 6 (46), 5730-5736. Published by Academic journals, Nigeria.
†Aderibigbe, O. B., Sogunle, O. M., Egbeyale, L. T., Abiola, S. S., Ladokun, O. A & Ajayi, O. L. (2013): Pelletized feed of different particle sizes: effect on performance, carcass characteristics and Intestinal morphology of two Strains of Broiler Chickens. Pertanika Journal of Tropical Agricultural Science. 36 (2): 127 – 144. Published by the University of Putra, Malaysia. Available online : http://www.pertanika.upm.edu.my/

53
Tijani, M.O., Akpavie, S.O., Ajayi O.L. (2012): Fibrosarcoma in Pond-Cultured African Catfish (Clarias gariepinus) Tropical Veterinarian 30, (2): 81-88. Published by the Faculty of Veterinary Medicine, University of Ibadan, Nigeria.

54 Ojo E, O., A.T.P. Ajuwape, O.L. Ajayi; E.B. Otesile, & A.I. Adetosoye (2012): Clinical manifestation in rabbits experimentally infected with Escherichia coli 0157:H7 Isolates of Different virulence gene profiles. Journal of Natural Science Engineering and Technology. 11: (2); 12-21. Published by the Federal University of Agriculture, Abeokuta, Nigeria.

55 †Ajayi, O.L, Kehinde, O.O Akinloye, A.K, Olurode, S.A, Adebowale O.O (2012): Dicephalus and diprosopus foetuses: gross and radiological observations in white Fulani cattle in Nigeria. Bulletin of Animal Health and Production in Africa. 60: 567 – 571. Published by Inter-African Bureau for Animal Resources, Nairobi, Kenya

56 †Ajayi, O.L,, Adebiyi. A A, Oni O O, Olaniyi O M, & Jagun T A. (2012): Serological and pathological assessment of lymphoid organs in chicks fed with graded levels of fermented and unfermented cassava diets. Bulletin of Animal Health and Production in African. 60, 469 – 480. Published by Inter-African Bureau for Animal Resources, Nairobi, Kenya.

57

58 Soniran O. T., Idowu O.A., Ajayi O. L & Olubi I.C. (2012): Comparative study on the effects of chloroquine and artesunate on histopathological damages caused by plasmodium berghei in four vital organs of infected albino rats. Malaria Research and Treatment. Article ID 960758, 7 pages, Published by Hindawi Publishing Corporation, . Available online: http://dx.doi.org/10.1155/2012/960758

†Olaniyi M. O., Oyekunle M.A., Ajayi O.L., Omotainse S.O., Sonibare A. O., Talabi A.O. & Alaka O.O. (2012): Acute Respiratory Disease Associated with Mannheimia haemolytica Infection in a herd of West African Dwarf Sheep. Bulletin of Animal Health and Production in Africa. 60:119-125. Published by Inter-African Bureau for Animal Resources, Nairobi, Kenya. Available online: http://www.ajol.info/index.php/bahpa/article/view/81737

59 †Adebayo A.O. Ajayi O.L., Olude M.A., Talabi A.O. Oyekunle M.A. (2012) Mandibular morphological changes associated with Actinomyces viscosus infection in West African Dwarf Goat in Nigeria. Bulletin of Animal Health and Production in Africa. 60: 377-381. Published by Inter-African Bureau for Animal Resources Nairobi, Kenya. Available online: http://www.ajol.info/index.php/bahpa/article/view/84415.

60

61
Adeyi, A. O., Idowu, A. B., Mafiana, C. F., Oluwalana, S. A. & Ajayi, O. L (2012): Effects of aqueous leave extract of Ficus exasperata on pathophysiology and histopathology of alloxan-induced diabetic albino rats. Journal of Medicinal Plants Research. 6 (46), 5730-5736. Published by Academic journals, Nigeria.

Olukunle J.O., Ajayi, O.L., Adenubi, O.T., Jacobs, E. B., Okediran B.S. and Akinkotu O.A. (2012). Evaluation of the toxic effect of aqueous extract of the back of Morinda morindoides root in male Wistar rats. Nigeria journal of Animal production 39 (2) 163-177. Published by the Nigeria society for Animal Production, Nigeria.

62 †Oladele O.O., Ajayi O.L., Olude, O O., Stephen, O O., Adediji, A A., Arasi I O & Ntiwunka U.G. (2012) Jaundice syndrome in African sharp-tooth catfish, Clarias Gariepinus (Burchell), associated with haemolytic Staphylococcus aureus.” Journal of Fish Diseases. 35 (12) 945-947. Published by Wiley online library. United States of America. Available Online: http://onlinelibrary.wiley.com/doi/10.1111/jfd.2012.35.
issue-12/issuetoc

63 Omotainse, S. O., Matimiloju, I., Akande, F. A., Ajayi, O. L., Takeet, M. (2011): Haematological and parasitological changes in experimental arthemether-treated Trypanosoma brucei infection in rabbits. Journal of Natural Science, Engineering and Technology, 10 (1): 59-67. Published by Federal University of Agriculture, Abeokuta, Nigeria.

64 †Oladele O.O., B. E. Olufemi, G.A. Oladosu , O. L. Ajayi , A. A. Adediji , O. I. Arasi. (2011): Arborescent organ necrosis syndrome in catfish, Clarias gariepinus (Burchell): A case report. Journal of Fish Diseases, 34 (10) 801–804. Published by Wiley online library. United States of America. Available online: http://onlinelibrary.wiley.com/doi/10.1111/jfd.2011.34.issue-10/issuetoc.

65 Olaniyi, M.O., Akinyemi, A. A., Akande, F. A., Takeet, M.I., Ajayi, O.L. & Olugbogi, E. I. (2011): Observations on the parasites and pathology of gastrointestinal tract of free-range chickens in Abeokuta, South-West Nigeria. Nigeria Poultry science Journal, 7: 116 – 121. Published by World Association of Poultry Science (Nigeria Chapter)

66 Olaniyi M. O., Oloye A. A., Alaka O.O & Ajayi O.L (2009): Studies on genital disorders of cows slaughtered at Zuru, kebbi- state, Nigeria. Journal of Agricultural Science and Environment, 9 (2): 64-69. Published by Federal University of Agriculture, Abeokuta. Available online: journal.unaab.edu.ng/index.php/JAgSE/article/view/1100

67 Adenubi O.T., J.O. Olukunle, M.O Abatan, O.L. Ajayi, O.E. Adeleye & O.O. Kehinde .(2010): Antispermatogenic activity of Morinda morindoides root bark extract in male wistar rats. Journal of Natural Science, Engineering and Technology, 9 (1): 99-105. -Published by Federal University of Agriculture, Abeokuta Available online: journal.unaab.edu.ng/index php/Series_B/article./view/399.

68 Ajayi, O. L., Omotainse S. O., Antia R.E., Akande F. A., Olaniyi M. O. & Kehinde, O. O., (2010): Hepatic histopathological changes in a dog with natural Capillaria hepatica infection in Nigeria. Nigeria Journal of Parasitology 31(1) 39-42. Published by Parasitology and Public Health Society of Nigeria. Available online: http://dx.doi.org/10.4314/njpar.v31i1.69457

69
Fasanmi O. G., Ajibola, E.S., Biobaku, K. T., Ajayi, O. L., Okediran, B.S., Olurode, S. A., Thomas, F. C. & Adebayo, A. O. (2009): Effects of administering a combination of vitamins A and E on fertility and hatchability of Anak 2000 Breeders. Asset Series A, 9 (1): 110-114. Published by Federal University of Agriculture, Abeokuta, Nigeria.

70 Olude, M. A., Ajayi, O. L., Adebayo, A. O., Akande, F. A. & Olugbogi, E. I. (2010) Intestinal intussusception due to concurrent infections with hymenolepis nana and dentostomella translucida in an African giant rat (Cricetomys gambianus waterhouse). a case report. Science World Journal 5 (2) 21-23. Published by Faculty of Science Kaduna State University. Available online: www.scienceworldjournal.org/article/view/6148

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72 †Adeyi, A. O., Idowu, B. A., Mafiana, C. F., Oluwalana, S. A. Ajayi, O. L. Oluseyi A Akinloye (2012) Rat model of food-induced non- obese-type 2 diabetes mellitus: comparative pathophysiology and histopathology. International Journal of Physiology, Pathophysiology and Pharmacology. 4 (1):51-58. Published by: e-Century Publishing Corporation. United States of America. Available online: http://www.ijppp.org/files/IJPPP1201004.pdf.

Oni O.O., Ajayi O.L & Ogunyeye, I. T. (2009): Serological status of an unvaccinated turkey flock for Infectious bursa disease virus antibody in Abeokuta, Nigeria. Sahel Journal of Veterinary Science 8: (2) 1-3. Published by Faculty of Veterinary Medicine, University of Maiduguri, Nigeria. Available : https://www.ajol.info/index.php/sjvs/cart/view/53625/42189

73 †Ajayi, O.L, & Antia, R.E. (2010): Oviductal lymphangectasia secondary to mesosalphinx leiomyoma in a chicken (Galllus galllus domesticus)-a case report. Veterinariski. Arhiv 80, 155-161. -Published by Faculty of Veterinary Medicine, Zagreb, Croatia. Available online: www.vef.unizg.hr/vetarhiv/papers/2010-80-1-15. Pdf.

74
Thomas, F.C., Adeleye, O.E, Adenubi, O.T, Ajayi, O.L., Olaniyi, M.O. & Adeleye,
A.I., Agbaje M. (2009): Acquired incisor malocclusion in an adult rabbit buck. A case report. Science World Journal 4 (3): 29-30. Published by Faculty of Science Kaduna State University, Nigeria. Available online: www.ajol.info/index.php/swj/article/ view File/51856/40497.

75 Oni O.O., Ajayi O.L & Ogunyeye, I. T. (2008): Serological status of unvaccinated indigenous chickens for infectious bursa virus antibody in Abeokuta. ASSET Series A, 8 (2): 233-237. Published by Federal University of Agriculture, Abeokuta, Nigeria.

76 Biobaku, K.T., Ajagbonna, O.P. Ajayi, O. L., & Adebowale O.O (2008): Efficacy of
magnesium chloride supplementation and diminazene aceturate in rats inoculated with Trypanosoma brucei. ASSET Series B (7) (1): 64-70 -Published by Federal University of Agriculture, Abeokuta, Nigeria.

77
Ajayi, O. L., Antia, R. E., Ajadi, R. A., Jagun, A. T., Omotainse,S.O., Oyewusi, I.,K. & Omobowale, O. T. (2009). Metastatic primary cutaneous transmissible venereal tumour in a male Rottweiler dog. A case report. Nigerian Veterinary Journal, 30(2):99- 102. Published by Nigeria Veterinary Medical Association. Available Online: http://www.ajol.info/journal_index.php?jid=19&tran.

78 Biobaku, K. T., Ajayi, O. L., Ajagbonna, O. P., Omotainse, S.O.., Ajibola, E. S. & Oyewusi, I. K (2009). Effects of wheat bran and diminazene aceturate on pathogenecity of Trypanosoma brucei infection in rats. Nigerian Journal of Parasitology. 30(2):125-130. Published by Parasitology and Public Health Society of Nigeria

79 Ajayi, O. L., Omotainse, S. O., Akande, F. A., Takeet, M.I. & Olukunle, J.O. (2009). Mycoplasma haemocanis: Sub-clinical and haematological findings in a mongrel dog, Nigeria. Nigerian Journal of Parasitology. 30(1): 53-56. Published by Parasitology and Public Health Society of Nigeria. Available online: http://dx.doi.org/10. 4314/njpar.v30i1.43993

80 Biobaku, K. T., Ajayi, O. L., Ajagbonna, O. P. & Omotainse, S. O. (2008). Effects of magnesium chloride and diaminazene aceturate on the pathogenecity of Trypanosoma brucei infection in rats. Vom Journal of Veterinary Science, 5 (1); 47-53. Published by National Veterinary research institute (Vom), Nigeria.

81 Ajayi, O. L., Omotainse, S.O., Olaniyi, M. O. & Thomas, F. C. (2008). Oropharyngeal and nasopharyngeal pathology: A sensitive indicator of naturally-induced hypovitaminosis A in domestic fowls. Nigerian Poultry Science Journal, 5 (2): 83-87. Published by Association of Nigeria poultry Science.

82 †Ajayi, O. L., Antia, R. E. & Omotainse, S. O. (2008). Oviductal volvulus in a Nera Black chicken (Gallus gallus domesticus) in Nigeria. Avian Pathology, 37(2): 139-140. Published by Taylor and Francis, United Kingdom. Available Online: http://dx.doi.org/10.1080/03079450801895324

83

84 Emikpe, B.O, Adeniran, G.A, Alaka, O.O., Ohore, O.G., Antia, R.E., Ajayi, O.L. & Omobowale, O.T. (2007). Valvular endocarditis in a captive monkey in Ibadan, Nigeria: a case report. Nigerian Veterinary Journal, 28 (3): 49-52. -Published by Nigeria Veterinary Medical Association. URL:http://www.ajol.info/index. http/nvj/article/view/3566.

†Ajayi, O.L, Emikpe, B.O, Jagun, A & Aina, S. (2007). Intestinal volvulus in domestic fowls. Journal of Animal and Veterinary Advances 6 (4) 477-478. Published by Medwell Journals, Pakistan. Available online: http://medwelljournals.com/abstract/?doi=javaa.2007.477.478

85 † Adedokun, O.A., Adedokun, R.A.M., Emikpe, B.O., Ohore, O.G., Oluwayelu, D.O., & Ajayi, O.L (2002): Concurrent fatal Helminthosis and Balantidosis in Red Monkey (Erythrocebus patas) in Ibadan. Nigerian Veterinary Journal, 23 (2) 56 – 59. -Published by Nigeria Veterinary Medical Association.URL: http://www.ajol.info/index.php/nvj/article/viewFile/3426/11525

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