Staff Profile

Prof. Ogunji Johnny

  • Faculty :
    Faculty of Agriculture
  • Department :
    Fisheries and Aquaculture
  • Official Email :
  • Alternate Email :
  • Google Scholar ID :
  • Research Gate ID :
  • ORCID :


Prof Dr. Johnny Ogunji obtained a PhD in Aquaculture from Humboldt University Berlin Germany. He has been a Professor of Fish Nutrition since 2008. He is a Post Doctoral Fellow of Alexander von Humboldt Foundation Germany. He is a Fellow Biotechnology Society of Nigeria. He worked as an assistant lecturer at Humboldt University Berlin Germany and Guest Scientist at Institute of Freshwater Ecology and Inland Fisheries Berlin Germany (1999-2001). He joined Ebonyi State University (EBSU) Nigeria in 2002.

In addition to several other responsibilities in the University he served in EBSU as HOD FAQ (2008-2011). Pioneer Director, Directorate of Research (2012 – 2013); and Dean, School of Postgraduate Studies (2012–2014). Ogunji joined Alex Ekwueme Federal University Ndufu Alike (AE-FUNAI) in 2016. He was the Pioneer Dean, Faculty of Agriculture (2016–2017); Director Academic Planning (2017–2019); Director Centre for Educational Services (2019–2021). Director Centre for Internationalization, Advancement and Global Ranking (2021–date); Director Academic Planning (2022–); He was a member of Babcock University Governing Council (2016–2020).
He researches on alternative protein sources. He received a National Research Award (2011) for his work with Housefly Maggot Meal (Magmeal) as an alternative for fishmeal is fish and livestock diets.

Selected Publications (Articles and Journals)

S/N Publication(s)
1 Ogunji, J.; Iheanacho, S.; Ogunji, C.V.; Olaolu, M.; Oleforuh-Okoleh, V.; Amaechi, N.; David, E.; Ndukauba, O.; Ikegwu, T.M.; Biamba, C., Chinonyerem U. D. (2021). Counting the Cost: The Effect of COVID-19 Lockdown on Households in South East Nigeria. Sustainability 2021, 13, 12417.
2 Ogunji, J.o.; Iheanacho, S.c.; Mgbabu, C.c.; Amaechi, N.c.; Evulobi, O.o.c. (2021). Housefly Maggot Meal As A Potent Bioresource For Fish Feed To Facilitate Early Gonadal Development In Clarias Gariepinus (burchell,1822). Sustainability 13: 921. Https://
3 Ogunji, J. O. And Iheanacho, S. (2021). Alternative Protein Source: Acceptability Of Cow Blood Meal Inplace Of Fish Meal Assessed Via Growth, Antioxidant Enzymes Functions And Haematological Response In Clarias Gariepinus (burchell, 1822). Aquaculture Research. 2021;00:1 –11. Doi: 10.1111/are.15115
4 Iheanacho, S. C. Adewale I. Adeolu, A. I., Nwose, R,. Ekpenyong, J., Offu, P., Amadi-eke, A., Iheanacho, A. C. And Ogunji, J. O. (2021). Genotoxicity, Oxidative Stress And Lysozyme Induction In Clarias Gariepinus Chronically Exposed To Water-soluble Fraction Of Burnt Tire Ash. Ecotoxicology (2021). Https://
5 Ogunji, J. O., Iheanacho, S. C., Abe, G. A. and Ikeh, O.R. (2020). Assessing effects of substituting dietary fish meal with Boiled Donkey and Cow Blood Meal on Growth Performance and Digestive Enzyme Activities of Clarias gariepinus Juvenile" Journal of World Aquaculture Society (JWAS) J. World Aquacult Soc. 51 (4): 1066-1079. DOI: 10.1111/jwas.12716 (Clarivate Analytics)
6 Awoke, J. and Ogunji, J. O. (2020). An assessment of the impacts of climate change on African catfish fingerling (Clarias gariepinus Burchell, 1822) – In: “Climate Change, Natural Hazards and Adaptation Option: Handling the impacts of a changing climate" (Edited by Walter Leal Filho, Gustavo Nagy, Marco Borga, Pastor David Chávez Muñoz, Artur Magnuszewsk} pp 925 – 939. Springer Nature Switzerland AG 2020
7 Ojide, M. G. and Ogunji, J. O. (2019). Food Systems for Healthier Diets (FSHD). A policy baseline assessment report for Nigeria.
8 Ogunji, J. (2019). Developing Sustainable Research Structure and Culture in Alex Ekwueme Federal University, Ndufu Alike Ikwo Ebonyi State Nigeria: in Managing Change at Universities Volume III edited by Bassey Edem Antia, Peter Mayer, Marc Wilde. WBV Publikation Bielefeld Germany Pg 45 - 54
9 David, E. I. and Ogunji, J. O. (2017) Influence of parental background on malnutrition among school aged children. Journal of Home Economics Research (JHER) Vol. 24, No. 1, September, 2017, pp. 138 – 146 (Scimago)
10 Ogunji, J. O. and Awoke, J. (2017). Effect of environmental regulated water temperature variations on survival, growth performance and haematology of African catfish, Clarias gariepinus Our Nature. 15 (1): 26-33 DOI: (Clarivate Analytics)
11 Ogunji C. V., Igba D. I., Ogunji J. O. (2017). Effects of using Concept Mapping in Teaching on the Achievement of Social Studies Students. Asian Journal of Research in Social Sciences and Humanities (AJRSSH) 7, (10) 359 -370 DOI: 10.5958/2249-7315.2017.00509.3
12 Iheanacho, S. C., Ogunji, J. O., Ogueji, E. O. , Nwuba, L. A., Nnatuanya, I. O., Ochang, S. N. Mbah, S. E. Usman, I. B. and Haruna, M. (2017). Comparative assessment of ampicillin antibiotic and ginger (Zingiber officinale) effects on growth, haematology and biochemical enzymes of Clarias gariepinus juvenile. Journal of Pharmacognosy and Phytochemistry 6 (3): 761-767
13 Oselebe, H.O., C.V. Nnamani, A. Efisue, D. onu, S.O. Eze and Ogunji, J.O. (2016). Perceptions of climate change and variability, impacts and adaptation strategies by rice farmers in south east Nigeri. Our Nature 14(1):54-63. DOI: (Clarivate Analytics)
14 Ogunji, J. O., Ozigbo, J., Ossai, A., and Ochang, S. (2016). Response of African Catfish, Clarias gariepinus; Burchell 1822 to diets of African Yam Bean (Sphenostylis stenocarpa) subjected to two processing methods. Nig J. Biotech. Vol. 31: 74 – 82. DOI:
15 Ogunji, J. O. and Inya, S. (2015) Ovarian recrudescence in African catfish (Clarias gariepinus) fed housefly maggot meal (magmeal) diets. EBSU Journal of Nature Vol 1. 134 – 143
16 Ogunji, J.o. (2013). Education And Information Communication Technology (ict) In Nigerian Educational System: The Journey So Far. Being A Lead Paper For The Conference Of Association For Encouraging Qualitative Education In Nigeria (asseqen). Journal Of Qualitative Education Vol. 9 (1) 2013, 13-26 Http://
17 Nwamba, Helen Ogochukwu and Ogunji, Johnny O. (2012). Evaluating butterfly larvae (Bematistes macaria) meal as fishmeal substitute in diets of African catfish hybrid (Heteroclarias) Indian Journal of Social and Natural Sciences 1(1): 78-84
18 Ogunji, J.O., Stiller, K. and Schulz, C. (2011). Assessing Specific Dynamic Action in Cyprinus Carpio Fed Diets of Fishmeal, Magmeal and Rapeseed Meal (Tropentag 2011 - Development on the margin October 5 - 7, 2011, University of Bonn, Bonn, Germany)
19 Osuigwe D. I., Okoro, V.D.C., Adaka, G. S., Obiekezie, A. I. and Ogunji, J.O. (2011). The Parasites of Cultured and Feral Nile Tilapia (Oreochromis niloticus) in Umudike, Nigeria. (Tropentag 2011 - Development on the margin October 5 - 7, 2011, University of Bonn, Bonn, Germany)
20 Ogunji, Johnny O., Samuel-Fitwi, Biniam, Schulz, Carsten (2011). Climate Change and Fish Production: A Look at Aquaculture Environmental Impact Assessment and Likely Adaptation Methods. A paper presented at the International Conference on Impact of and Adaptation to Climate Change in Relation to Food Security in Africa – organised by African Academy of Science (AAS), Third World Academy of Science (TWAS), and Network of African Science Academies (NASAC). 23rd to 27th February 2011 Nairobi, Kenya
21 Ogunji, J. O. and Idike, F. I. (2011). Fish production, sustainable development and the aquatic environment. Journal of Sustainable Development and Environmental Protection. 1 (2): 43 - 51
22 Ogunji, J. O. Jorge Nimptsch , Claudia Wiegand, Carsten Schulz, Bernhard Rennert (2011). Effect of housefly maggot meal (magmeal) diets on catalase, and glutathione S-transferase in the liver and gills of carp Cyprinus carpio fingerling International Aquatic Research Vol 3 (1) : 11- 20 (Clarivate Analytics)
23 Ogunji, J.; Sutter, D.; Rennert, B.; Kloas, W.; Schulz, C. (2009). Growth performance, body composition and haematological characteristics of Carp / Cyprinus carpio / fed diets containing housefly maggot meal. EAS special publication 2009, 457-458
24 Ogunji, J., Pagel, T., Schulz, C., Kloas, W. (2009). Apparent digestibility coefficient of housefly maggot meal (magmeal) for Nile tilapia (Oreochromis niloticus L.) and carp (Cyprinus carpio). Asian Fisheries Science 22 (4 )1095 – 1105
25 Ogunji, J. O. and Idike, F. I. (2009). Research Practice and Deployment in Nigeria: A Critical look. 3rd African Regional Conference of Vice-Chancellors and Deans of Science, Engineering and Technology (COVIDSET 2009) Kampala Uganda,23-25 November 2009
26 Slawski, H.; Schulz, C.; Ogunji, J.O. (2008). Evaluation of Housefly maggot meal as alternative protein source in the nutrition of Oreochromis niloticus. World Aquaculture Magazine (2008), 40, (16-20).
27 Ogunji, J.O., Kloas, W., Wirth, M., Schulz, C. and Rennert, B. (2008). Housefly maggot meal (magmeal) as a protein source for Oreochromis niloticus (Linn.) Asian Fisheries Science 21:319 –
28 Ogunji, J. O., Kloas, W., Wirth, M., Neumann, N. and Pietsch, C. (2008). Effect of Housefly Maggot Meal (Magmeal) diets on the Concentration of Plasma Glucose, Cortisol and Blood characteristics of Oreochromis niloticus fingerlings. Journal of Animal Physiology and Animal Nutrition 92 (4): 511–518.
29 Ogunji, J., Rahat-ul-Ain, S., Schulz, C. and Kloas, W. (2008) Growth performance, nutrient utilization of Nile Tilapia Oreochromis niloticus fed housefly maggot meal (Magmeal) Diets. Turkish Journal of Fisheries and Aquatic Sciences Turkish Journal of Fisheries and Aquatic Sciences 8: 141-147
30 Ogunji, J. O., Osuigwe, D. I., Okogwu, O. and Uwadiegwu, N. (2008). Response of African Catfish, Clarias gariepinus; Burchell 1822 to diets of pigeon pea (Cajanus cajan) Subjected to different processing methods. Journal of World Aquaculture Society (JWAS) 39 (2): 215 – 224 DOI: 10.1111/j.1749-7345.2008.00158.x
31 Ogunji, J., Sutter, D., Rennert, B., Kloas, W., Schulz, C. (2007) Growth performance and body composition of carp (Cyprinus carpio) fed diets containing housefly maggot meal (magmeal). Berichte des IGB (2007), 140-148.
32 Osuigwe, D. I., Obiekezie, A. I. and Ogunji, J. O. (2007). Preliminary Evaluation of Jackbean (Canavalia ensiformes L. DC) seed meal as a substitute for fishmeal in the diets of Clarias gariepinus. (Burchell,1822). International Journal of Agriculture and Rural Development, 9 (1): 7 – 11
33 Uka, A. and Ogunji, J. O. (2007). Point of irreversible starvation in Clarias gariepinus and Clarias gariepinus × Heterobranchus longifilis hybrid. Journal of the Science of Agriculture, Food technology and the Environment (JSAFE) 7: 25 – 29.
34 Osuigwe, D. I., Nwosu C. and Ogunji J.O. (2007). Preliminary observations on some haematological parameters of juvenile Heterobranchus longifilis fed different dietary levels of raw and boiled jackbean (Canavalia ensiformis) seed meal
35 Schulz, C., Huberts, M., Ogunji, J. and Rennert, B. (2007). Effects of varying dietary protein to lipid ratios on growth performance and body composition of juvenile pike perch (Sander lucioperca) Aquaculture Nutrition 13: 1–8
37 Ogunji, J. O., Nimptsch, J., Wiegand, C., Schulz, C. (2007) Evaluation of the influence of housefly maggot meal (magmeal) diets on catalase, glutathione S-transferase and glycogen concentration in the liver of Oreochromis niloticus fingerling. Comparative Biochemistry and Physiology, Part A 147 (4): 942–947.
38 Schulz, C., Wickert, M., Kijora1, C., Ogunji, J., Rennert, B. (2007) Evaluation of pea protein isolate as alternative protein source in diets for juvenile tilapia (Oreochromis niloticus). Aquaculture Research 38, 537 – 545.
39 Ogunji, J. O., Kloas, W., Wirth, M. Schulz, C., and Rennert, B. (2006). Housefly maggot meal (Magmeal): An emerging substitute of fishmeal in tilapia diets.
40 Ogunji, J. O., Slawski, O., Schulz, C., Kloas, W. and Wirth, M. (2006). Preliminary evaluation of housefly maggot meal as an alternative protein source in the diet of carp (Cyprinus carpio). Presented at the World Aquaculture Conference AQUA 2006 May 9-13, 2006 Fortezza da Basso Convention Center Firenze (Florence), Italy
41 Ogunji, J. O., Wirth, M. And Rennert, B. (2005). Assessing the dietary amino acid requirements of tilapia Oreochromis niloticus fingerlings. Journal of Aquaculture in the Tropics 20 (4) 241- 252.
42 Ogunji, Johnny O.; Uwadiegwu, Nicholas; Osuigwe Donald I.; Wirth, Manfred (2005), Effects of Different Processing Methods of Pigeon Pea (Cajanus cajan) on the Haematology of African Catfish (Clarias garipinus) Larvae.
43 Osuigwe, D. I., Obiekezie, A. I. and Ogunji, J. O. (2002). Preliminary Evaluation of Jackbean (Canavalia ensiformes L. DC) seed meal as a substitute for fishmeal in the diets of Clarias gariepinus.(Burchell,1822).
44 Okogwu, I. O. and Ogunji, J. O. (2004). Changes in body weight, hepatosomatic index and blood glucose level during aestivation in African Lungfish Protopterus annectens (Owen). Proceedings of the 9th Annual Conference of Animal Science Association of Nigeria (ASAN) September 13th– 16th 2004 Ebonyi State University, Abakaliki, Nigeria. (Editors – Ogunji, J. O., Osakwe, I. I., Ewa, V. U., Alaku, S. O., Otuma, M. O. and Nweze, B. O.) Pp. 298 – 301.
45 Ogunji, J.O. (2004). Alternative protein sources in diets for farmed tilapia. Reviews (2004) No. 13; CAB International Publishing (Oxford, UK). Nutrition Abstracts and Reviews: Series B 74(8), 23N – 32N
46 Alimba, J. and Ogunji, J. O. (2003). Rural non- farm technological change: Implications for rural linkages in southeastern Nigeria. http://www.
47 Osuigwe, D. I., Obiekezie, A. I. and Ogunji, J. O. (2003). Haematological Effect of using Jackbean (Canavalia ensiformes L. DC) seed meal as alternative protein source for Clarias gariepinus.(Burchell,1822). http://www.
48 Ogunji, J. O., Wirth, M. and Osuigwe, D. I., (2003). Nutrient composition of some tropical legumes capable of substituiting fishmeal in fish diets. Journal of Agriculture and rural development in the Tropics and Subtropics (Der Tropenlandwirt) Vol. 104 No. 2; 143 – 148.
49 Ogunji, J.O. and Wirth, M. (2002). Influence of dietary protein deficiency on growth, amino acid, and fatty acid composition of Tilapia Oreochromis niloticus fingerlings. The Israeli Journal of Aquaculture – Bamidgeh 54(2), 57 – 65.
50 Ogunji, J. O. and Wirth, M. (2001). Alternative protein sources as substitutes for fish meal in the diet of young Tilapia Oreochromis niloticus (Linn.) Israeli Journal of Aquaculture – Bamidgeh 53(1), 34 – 43.
51 Ogunji, J. O. and Wirth, M. (2000). Effect of dietary protein content and sources on growth, food conversion and body composition of tilapia Oreochromis niloticus fingerling fed fish meal diet. Journal of Aquaculture in the Tropics 15(4) 381 – 389
52 Ogunji J. O. and Rahe, R. (1999). Larval development of the African catfish Heterobranchus longifilis Val., 1840 (Teteostei; Clariidae) and its larval behaviour. Journal of Aquaculture in the Tropics 14(1) 11- 25.
53 Ogunji, J. O. (1998). Larval development of the African catfish Heterobranchus longifilis Val., 1840 (Teleostei; Claridae) at two different food regimes. Presented at the African fishes and fisheries diversity and utilisation: International Conference for the Paradi association and the Fisheries Society of Africa 13-19 september 1998; Grahamstown South Africa.
54 Ogunji, J. O. (1996) The status of aquaculture in Abia State Nigeria. Presented at the first scientific conference on fish and fisheries of South-Eastern Nigeria (4th-5th October 1996) at University of Uyo, Nigeria.