-Ph. D 2011
-M. Agric. 2006
-B. Agric. 2000

i. Effect of Moringa oleifera leaf meal on haematological parameters, serum biochemical indices and haemagglutination potential of broiler birds raised on deep litters.
ii. Performance and cost-benefits of weaner rabbits fed graded levels of Moringa oleifera leaf meal.
iii. Gestational and reproductive performance of rabbit does fed diets containing neem
(Azadirachta indica) leaf meal iv. Growth performance, carcass characteristics, haematology and serum biochemistry of rabbit bucks fed diets containing graded levels of neem (Azadirachta indica) leaf meal
v. Effect of dietary supplementation of Moringa oleifera leaf meal on blood profile,
haemagglutination potential and testicular activities of rabbits
vi. Effect of dietary supplementation of Ficus asperifolia aqueous extract on semen quality, testicular histology and reproductive performance of New Zealand white rabbits raised under tropical condition
vii. Performance characteristics, blood profile and liver histology of new zealand white rabbits administered aqueous Ficus asperifolia leaf extract Conferences attended:
i. AWARD Leadership Program for Agricultural Research and Development (LEPARD) held at the Safari Park Hotel, Nairobi, Kenya, October 28-31, 2014.
ii. Two-day capacity building workshop on Modern Methods of Teaching and Learning in Higher Education organized by Federal University of Agriculture, Abeokuta on 25th and 26th January, 2016.
iii. Three-day International Short Course on “Advanced Techniques In Poultry Nutrition Research” held at International Scholars’ Resource Centre, Federal University of Agriculture, Abeokuta, Nigeria organized by Africa Centre of Excellence in Agricultural Development and Sustainable Environment (CEADESE) in conjunction with Federal University of Agriculture, Abeokuta, February 13-16, 2017.
iv. A 3-day capacity-building workshop on “Students Mentorship for Female Lecturers in South-West Nigerian Universities” held at the Academic Building Ekiti State University, Ado-Ekiti organized by the Centre for Gender and Development Studies (CGDS), Ekiti State University (EKSU), Ado-Ekiti in collaboration with the Department for International Development (DFID) from March 22 – 24, 2017.
v. A 3-day Academic Retreat on University Ethics, Pedagogy and Examination Matters held at 1000 Lecture Theatre, Federal University of Agriculture, Abeokuta, Nigeria organised by the Academic Planning Unit, Federal University of Agriculture, Abeokuta, June 21 – 23, 2021

i. Federal Government of Nigeria Scholarship for Postgraduate studies (2002)

ii. AWARD Leadership Program for Agricultural Research and Development (LEPARD) held at the Safari Park Hotel, Nairobi, Kenya, October 28-31, 2014.

iii. TETFUND Institution-Based Research Intervention Award (2015): Insulin-like growth factor-1 gene polymorphism and its effect on reproductive performance of improved Nigerian indigenous chicken. Co-Investigator

iv. TETFUND National Research Fund (NRF) Intervention (2019): Use of red and white sorghum in feeding system for poultry and implications of locally produced tannase enzyme. Co-Investigator

v. TETFUND National Research Fund (NRF) Intervention (2019): Development of early warning system for farmer’s preparedness against climate change impacts in South-West Nigeria. Co-Investigator

vi. TETFUND Institution-Based Research Intervention Award (2021): Assessing the impact of Lagenaria breviflora Robert on poultry gut health. Co-Investigator

vii. TETFUND Institution-Based Research Intervention Award (2023): Assessing the potentials of watermelon rind as an energy source in rabbit production. Principal Investigator

viii. TETFUND Institution-Based Research Intervention Award (2026): Improving indigenous chicken production using garlic aqueous extract as a natural growth promoter. Co-Investigator

i. Nigerian Institute of Animal Science (RAS – 0998)
ii. Nigerian Society for Animal Production
iii. Animal Science Association of Nigeria
iv. British Society of Animal Science
v. World Poultry Science Association (Nigeria Branch ID-22155)

i. AWARD Leadership Program for Agricultural Research and Development (LEPARD) held at the Safari Park Hotel, Nairobi, Kenya, October 28-31, 2014.

ii. A 3-day capacity-building workshop on “Students Mentorship for Female Lecturers in South-West Nigerian Universities” held at the Academic Building Ekiti State University, Ado-Ekiti organized by the Centre for Gender and Development Studies (CGDS), Ekiti State University (EKSU), Ado-Ekiti in collaboration with the Department for International Development (DFID) from March 22 – 24, 2017.

iii. A 3-day Academic Retreat on University Ethics, Pedagogy and Examination Matters held at 1000 Lecture Theatre, Federal University of Agriculture, Abeokuta, Nigeria organised by the Academic Planning Unit, Federal University of Agriculture, Abeokuta, June 21 – 23, 2021

iv. The 51st Annual Conference of the Nigerian Society for Animal Production (NSAP) held at the Nigerian Defence Academy, Ribadu, Kaduna State, Nigeria between 16th March –1st April, 2026.

v. The 29th Annual Conference of Animal Science Association of Nigeria held at Lagos Airport Hotel, Lagos State, Nigeria, September 9th – 12th, 2024.

vi. The 8th Annual Conference and 67th AGM-ABEOKUTA of The Association of Deans of Agriculture in Nigeria Universities (ADAN), held at Federal University of Agriculture, Abeokuta, Ogun State, Nigeria, July 7th – 11th, 2024.

vii. The 44th Annual Conference, Nigerian Society for Animal Production (NSAP) held at University of Abuja, Abuja, 17th – 21st March, 2019.

viii. The 43rd Annual Conference, Nigerian Society for Animal Production (NSAP) held at Federal University of Technology, Owerri, Imo State, Nigeria, 18th – 22nd March, 2018.

ix. The 6th ASAN-NIAS Joint Annual Meeting held at the NAF conference centre, plot 496, Ahmadu Bello way, Kado, Abuja, Nigeria, September 10-14, 2017.

x. The 41st Annual Conference, Nigerian Society for Animal Production (NSAP) held at Federal University of Agriculture, Abeokuta, Ogun State, Nigeria, 20th – 24th March, 2016.

xi. The 4th ASAN-NIAS Joint Annual Meeting held at International Conference Centre, University of Ibadan, Ibadan, Nigeria, September 6-10, 2015.

xii. The 5th Nigeria International Poultry Summit (5th NIPS) held at University of Ilorin, Ilorin, Kwara State, Nigeria, 10th – 14th May, 2015.

xiii. The 3rd ASAN-NIAS Joint Annual Meeting held at International Conference Centre, University of Ibadan, Ibadan, Nigeria, September 7-11, 2014.

xiv. The 39th Annual Conference of Nigerian Society for Animal Production (NSAP) held at Babcock University, Ilishan-Remo, Ogun State, Nigeria, March 16-19, 2014.

i. Fanimo A. O., Oduguwa B. O., Ajasa O. Y. and O. Jegede. 2004. Feeding value of shrimp meal for growing pigs. Archivos de zootechnia, 53 (201): 77-85
ii. Dipeolu M. A. and Ayo-Ajasa. O. Y 2006. Residues of streptomycin antibiotic in layers and stability of residues after cooking. Nigerian Poultry Science Journal 4:56-59
iii. Ayo-Ajasa,O. Y., Aina, A. B. J., Agaviezor, B. O., Ozoje, M. O. and Sowande, O. S. 2014. Effect of generational differences, housing systems and sex and their interactions on the carcass and organ parameters of rabbits. Global Journal of Bio-science & Biotechnology (GJBB), 3 (2) 2014: 153-160 ISSN 2278-9103.
iv. Ayo-Ajasa, O. Y., Aina, A. B. J., Agaviezor, B. O., Ozoje, M. O. and Sowande, O. S. 2014.Variation in growth and linear body measurements of rabbits due to generation differences, housing systems, sex and season. Journal of Experimental Agriculture International, 4 (11): 1339 – 1347. v. Ayo-Ajasa,O. Y., Aina, A. B. J., Sowande, O. S., Egbeyale, L. T., Ozoje, M. O., Agaviezor, B.O. and Abel, F. A. S. 2015. Haematological and serum profile of rabbits due to generation interval, housing systems and sex. Nigerian Journal of Animal Production 42 (1): 60 -70.
vi. Ayo-Ajasa,O. Y., Aina, A. B. G., Sowande, O. S., Egbeyale, L. T., Ozoje, M. O., Oso, A. O., Abiona, J. A and Abel, F. A. S. 2015. Effect of generational differences, housing system and seasonal variations on the reproductive performance of rabbits raised in humid tropics. Nigerian Journal of Animal Production 42 (2): 103 – 110.
vii. Egbeyale, L. T., Ayo-Ajasa, O. Y., Ayoola, A. A., Ogunkunle, N. F. and Okuboyejo, O. A. 2015. Performance of broiler chickens fed neem (Azadirachta indica) leaf meal as an alternative to antibiotics. Bulletin of Animal Health and Production in Africa, 63(4): 403-410
viii. Ayo-Ajasa,O. Y., Abiona, J. A, Fafiolu, A. O., Egbeyale, L. T., Njoku, C. P., Omotayo, I. G., Odeyemi, A.Y. and Abel, F. A. S. 2016. Performance characteristics of broilers fed graded levels of Moringa oleifera leaf meal. Malaysian Journal of Animal Science Vol. 19(1): 23-31.
ix. Ayo-Ajasa, O. Y, Abiona, J. A., Odeyemi, A. Y., Fafiolu, A. O., Egbeyale L. T., Omotayo, I. G., Odeyemi, A. J. and Abel, F. A. S. 2016. Effect of moringa oleifera leaf meal on haematological parameters, serum biochemical indices and haemagglutination potential of broiler birds raised on deep litters. Bulletin of Animal Health Production in Africa, 64 (3): 337-334
x. Ayo-Ajasa, O. Y, Egbeyale, L. T., Sanusi, G.O. Ibrahim, K., Hamzat, O. A and Falako, M. F. 2017. Performance and cost-benefits of weaner rabbits fed graded levels of Moringa oleifera leaf meal. Malaysian Journal of Animal Science Vol. 20(1) June, 2017.
xi. Ayo-Ajasa, O. Y, Egbeyale, L. T., Abiona, J. A., Njoku, C. P., Amoo, A. B. and Aseniyi, O. E. Gestational and reproductive performance of rabbit does fed diets containing neem (Azadirachta indica) leaf meal. Nigerian Journal of Animal Production Vol.45 (3): 79 – 86.
xii. Ayo-Ajasa, O. Y, Wheto, M., Egbeyale, L. T., Njoku, C. P., Sanwo, K. A. and Azeez, F. A. 2018. Prediction of body live weight from body length and heart girth of rabbit. Nigerian Journal of Animal Science Vol.20 (4): 333 – 337
xiii. Ayo-Ajasa,O. Y., Egbeyale, L. T., Abiona, J. A and Fafiolu, A. O. 2018. Pre and post-gestation blood indices of rabbit does fed graded levels of neem (Azadirachta indica) leaf meal. Nigerian Journal of Animal Production Vol.45 (5): 15 – 22
xiv. Abiona, J. A., Bello, K. T., Yusuf, T. A., Akinduti, P. A., Ayo-Ajasa, O. Y., Wheto, M., Adebayo, A. O., Iyanda, O. A. and Onagbesan, O. M. 2018. Preliminary investigation of toll-like receptor expression and haemagglutination potential of selected part of the reproductive tract of giant African land snail (Archachatina marginata) infected with bacteria. Bulletin of Animal Health Production in Africa, 66 (4): 699-708
xv. Ayo-Ajasa, O. Y, Egbeyale, L. T., Ekunseitan, D. A., Busari, M. O., Bajegbo. Y. O., Fatoye, Q. O. and Oyekanmi, O. O. 2019. Response of rabbit does and kits to different weaning ages. Bulletin of Animal Health Production in Africa, 67 (1): 45-55
xvi. Njoku, C. P., Ayo-Ajasa, O. Y., Ekunseitan D. A., Okunniyi, T. A. and Agbeniga, M. J. 2019. Nutrient digestibility and physiological implication of feed withdrawal periods and ascorbic acid supplementation in growing pigs under tropical environment. Indian Journal of Animal Sciences, 89 (12): 1377-1388.
xvii. Ayo-Ajasa,O. Y., Egbeyale, L. T., Adewole, F. A., Ekunseitan D. A. and Fafiolu, A. O. 2019. Effect of body weight at first mating on reproductive performance of rabbit does. Nigerian Journal of Animal Production Vol.46 (5): 102 – 106
xviii. Egbeyale, L. T., Oni, A. O., Ayo-Ajasa, O. Y, Abiona, J. A., Adeleye, O. O., Oyebo, A. T. and Oyedare, K. S. 2019. Performance of weaned female rabbits fed diets containing varying levels of neem leaf meal. Bulletin of Animal Health Production in Africa, 67 (3): 295-302
xix. Sanwo, K. A., Adegoke, A. V., Ayo-Ajasa, O. Y., Elegbede, T. J., Fagbohun, A.O. and Adeyanju, T. M. 2020. Quality and Stability of meat obtained from broiler chickens fed diets containing tonic root (Mondia whitei) as supplement. Nigerian Journal of Animal ProductionVol.47 (3): 99– 109.
xx. Imade, A. A., Onwuka, C. F. I., Jegede, A. V., Ayo-Ajasa, O. Y., Akanbi, A. A. 2020. Growth performance of weaner rabbits on diets containing varying levels of dried okra leaves (Abelmoschus esculentus). Nigerian Journal of Animal Production Vol.47 (3): 124 – 131
xxi. Ayo-Ajasa, O. Y., Egbeyale, L. T., Abiona, J. A., Ekunseitan, D. A., Ayoola, A. A., Atoyebi, J. F., and Aremu, O. M. 2020. Growth performance, carcass characteristics, haematology and serum biochemistry of rabbit bucks fed diets containing graded levels of neem (Azadirachta indica) leaf meal. Nigerian Journal of Animal Science Vol.22 (1): 270 – 278
xxii. Sahr, William B.K., Odutayo, O.J., Sogunle*, O. M., Ayo-Ajasa, O. Y., Fafiolu, A.O. and Fatunmbi, F. A. 2020. Effects of in ovo injection of inorganic salts of Zn, Cu and Mn on hatching traits and post-hatch performance of broiler chickens in the tropics. Nigerian Journal of Animal Science Vol.22 (1): 113 – 125
xxiii. Abiona, J. A., Durosinmi, F. A., Abioja, M. O., Ayo-Ajasa, O. Y. and Onagbesan, O. M. 2020. Effects of shell injury on haemocyte concentration and shell regrowth in giant African land snail (Archachatina marginata). Polish Journal of Natural Science, Vol 35(4): 471–479.
xxiv. Abiona, J. A., Adeeyo, O. M., Abioja, M. O., Aina, C. K., Ayo-Ajasa, O. Y. Oyesanwen, M. T., Ihongbe, R. A., Mbshelbwala, F. M., Oke, O. E. and Onagbesan, O. M. 2021. Effects of common salt (NaCl) on reproductive tract dimension, haemolymph haemocyte count and biochemical parameters of Giant African Land snail (Archachatina marginata) during dry season. Aquaculture Reports 20:1-8
xxv. Egbeyale, L.T., Ndagimba, J. R., Sogunle, O. M., Adeleye, O. O., Akinosi, O. K. and Ayo Ajasa, O. Y. 2017. Influence of housing types and sex on the growth performance, haematological and serum biochemical parameters of broiler chickens. Nigerian Journal of Animal Production Vol.44 (3): 246 – 253.
xxvi. Njoku, C. P., Odutayo, O. J., Ayo-Ajasa, O. Y., Okunniyi, T. A., Agbeniga, M. J. and Adeyemi, O. A. 2021. Effects of feed withdrawal periods and ascorbic acid supplementation on growth performance and morphological measurements of growing pigs. Thailand Journal of Agricultural Science, 54 (4): 222-234
xxvii. Ayo-Ajasa, O. Y., Abiona, J. A., Egbeyale, L. T., Fafiolu, A.O., Bamidele, L. A. and Fatola, O. 2021 Effect of dietary supplementation of Moringa oleifera leaf meal on blood profile, haemagglutination potential and testicular activities of rabbits. Polish Journal of Natural Science, Vol 36(1): 95–106.
xxviii. Ayo-Ajasa, O. Y., Akani, B. T., Falade, G., Sogunle, O. M., Egbeyale, L. T., Abiona, J. A., Fafiolu, A.O. 2022. Effect of different feed types on haematological and serum biochemical parameters of male and female weaner rabbits. Nigerian Journal of Animal Science Vol.24 (2): 118 – 130.
xxix. Ayo-Ajasa, O. Y., Abiona, J. A., Egbeyale, L. T., Fafiolu, A.O., Binoomote, N. O. and Busari, G. 2022. Effect of dietary supplementation of Ficus asperifolia aqueous extract on semen quality, testicular histology and reproductive performance of New Zealand white rabbits raised under tropical condition. Polish Journal of Natural Science, Vol 37(1): 5–22.
xxx. Sogunle, O. M., Fagbamila, O. E., Ayo-Ajasa, O. Y., Sanda, A. J., Odutayo, O. J., Olatunbosun, O. B., 2Alamu, O. and Adegbite, J. A. 2022. Age and Cage Tiers: Effects on productive performance, blood profile and egg quality traits of egg-type chickens. Nigerian Journal of Animal Science Vol.24 (3): 28 – 42.
xxxi. Ayo-Ajasa, O. Y., Njoku, C. P., Egbeyale, L. T., Abiona, J. A., Dare, A. O. and Bolanle, E. A. 2022. Performance characteristics, blood profile and liver histology of new zealand white rabbits administered aqueous Ficus asperifolia leaf extract. Journal of Agricultural Science and Environment. 22 (1&2):1-19
xxxii. Adewole, F. A., Egbeyale, L. T., Ayo-Ajasa, O. Y., and Adegbenga, H. T. 2022. Carcass characteristics and reproductive organ development of egg-type chickens fed diets containing Aspilia africana Journal of Agricultural Science and Environment. 22 (1&2): 34-42
xxxiii. Silas, A. F. A., Ayo-Ajasa, O. Y., Afolabi, T. and Onyibe, J. 2022. Evaluation of peanut cake replacement with soybean curd meal for growth performance and haematological analysis in the diet of weaner rabbits. Malaysian Journal of Animal Science Vol. 25(2): 44-52.
xxxiv. Ayoola A. A., Yusuf, A. O., Olatunbosun, O. B., Ayo-Ajasa, O. Y. and Ogunmefun, F. T. 2023. Carcass yield, bone morphometry and mineral concentration in tissues of broilers fed nano zinc fortified diet. Agriculturae Conspectus Scientificus 88 (4): 343-349.. Available online at https://acs.agr.hr/en/issues/article/1181
xxxv. Ibigbami, D. J., Odutayo, O.J., Ayo-Ajasa, O. Y., Ibigbami, B.O., Fafiolu, A. O. and Sogunle, O.M. 2023. Effect of aqueous extract of fresh sweet orange peel on growth performance and non-specific immune response of broiler chickens. Thai Journal of Agricultural Science, 56 (3): 137-146.
xxxvi. Ademolue, R. O., Sanwo, K. A., Sobayo, R.A., Ayo-Ajasa, O.Y. and Okanlawon, E. O. 2024. Effect of turmeric, garlic, ginger powder and their blends on growth performance and carcass yield of rabbits. ADAN Journal of Agriculture., 5: 160-170.
xxxvii. Obadimu, A. O., Jegede, A. V., Fafiolu, A.O., Sogunle, O. M. and Ayo-Ajasa, O. Y. 2025. Effects of diets containing red and white sorghum supplemented with tannase on the growth performance and nutrient digestibility of broiler chickens. International Journal of Agricultural and Veterinary Science vol. 07 (1): 155-171.
xxxviii. Ayo-Ajasa, O. Y., Ekunseitan, D. A., Alarima, C. I., Busari, A.O., Oose, M. O., Adewole, F. A. and Egbeyale, L. T. 2025. Analysis of rabbit production practices by farmers in Ogun State, Nigeria. Journal of Agricultural Science and Environment. 25: 21-38.
xxxix. Ayo-Ajasa, O. Y., Adegoke, A. V., Adeyemo, A. A., Ayoola A. A., Olawale, C. A., Amore, O. P., Ajayi, A. G., Egbeyale L. T., Abiona J. A., Fafiolu A. O. and Sogunle O. M. 2025. Meat qualities of rabbits fed diets containing dried watermelon rinds as an energy source. ADAN Journal of Agriculture, 6 (1): 49-61.
xl. Ayo-Ajasa, O. Y., Ayoola A. A., Adeyemo, A. A., Odutayo, O. J., Olalere, F. A., Olaoye, A. O., Egbeyale L. T., Abiona J. A., Fafiolu A. O. and Sogunle O. M. 2025. Growth performance, blood profile and feed cost analysis of using dried watermelon rinds in rabbit diets. Nigerian Journal of Animal Science Vol.27 (2): 109 – 123.
xli. Ayo-Ajasa, O. Y., Ayoola, A. A., Odutayo, O. J., Adeyemo, A. A., Agboola, E. O., Akintayo, E. O., Oladosu, O. B. and Egbeyale, L. T. 2025. Effect of dietary Ficus asperifolia on blood profile, caecal bacterial load and liver histology of weaner rabbits. Nigerian Agricultural Journal Vol.56 (3): 374 – 389. Available online at: https://www.ajol.info/index.php/naj https://doaj.org/toc/0300-368X
xiii. Adeyemo, A. A, Olamilokun, O. V., Ekunseitan, D. A., Ayo-Ajasa O.Y. and Sogunle O.M. 2025. Haematological and Serum Biochemistry Indices of Broiler Chickens administered spotted pumpkin (Lagenaria breviflorus) Aqueous Extract. Nigerian Journal of Animal Production Vol.52 (5): 1 – 10. Available online at https://doi.org/10.51791/njap.v52i5.9065
xliii. Ayo-Ajasa, O. Y., Falade, G. T., Akani, B. T., Njoku, C. P., Ayoola, A. A., Adewole, F. A., Sogunle, O. A., Egbeyale, L. T., Abiona, J. A. and Fafiolu, A.O. 2025. Carcass characteristics, intestinal morphology and microbiota of weaner rabbits as influenced by sex and feed types. Polish Journal of Natural Science, Vol 40(4): 195–214.
xiiv. Ayo-Ajasa, O. Y., Ayo-Ajasa, A. O., Njoku, C. P., Adewole, F. A., Opowoye, I.O., Silas, A.F.A., Egbeyale, L. T. and Fafiolu, A.O. 2026. Caecal microbiota profile and organ histopathology of weaner rabbits administered aqueous leaf extract of Parquetina nigrescens. Nigerian Agricultural Journal Vol.57 (1): 266 – 277. Available online at: https://www.ajol.info/index.php/naj https://doaj.org/toc/0300-368X
xiv. Odutayo, O.J., Iyanda, A.I., Ibigbami, D.J., Olaifa, R.O., Ayo-Ajasa, O.Y.,Olatunbosun, O.B. and Sogunle, O.M. 2026. Growth Performance, Carcass Traits, Gut Histomorphometry and Histopathology of Broiler Chickens Subjected to Combined Onion Peel and Cinnamon Powder Dietary Additives. Nigerian Agricultural Journal
Vol.57 (1): 415 – 424. Nigeria. Available online at: https://www.ajol.info/index.php/naj https://doaj.org/toc/0300-368X
xivi. Ayo-Ajasa, O. Y., Ayo-Ajasa, A. O., Jogunomi, C. O., Adeyemo, A. A., Wheto, M., Ayoola, A. A., Silas Abel, F. A., Shittu, T.A., Nzereogu, L. U., and Abdulasis, A. O. 2026. Phytochemical Profile, Caecal Microbiota Dynamics, and Hepatorenal Safety of Ethanolic Parquetina nigrescens Leaf Extract in Weaner Rabbits. Nigerian
Agricultural Journal Vol.57 (1): 633 – 620. Nigeria. Available online at:
https://www.ajol.info/index.php/naj https://doaj.org/toc/0300-368X