(i) THESIS AND DISSERTATION

(a) Effects of Sulphur Levels on Urea Nitrogen Utilization by small ruminants. B.Sc. Project, Animal Science Department, University of Ibadan. Ibadan. 1978.

(b) Chemical Composition and “In Vitro” organic matter digestibility of some Nigerian Browse Plants. M.Sc. Thesis. Animal Science Department, University of Ibadan, 1980.

(c) Nutritional Evaluation of some Nigerian Browse Plants in the humid tropics. Ph.D. Thesis. Animal Science Department, University of Ibadan, Ibadan. 1983.

(ii) PUBLISHED ARTICLES – PUBLICATIONS IN LEARNED JOURNALS

(1) AKINSOYINU, A.O. AND ONWUKA, C.F.I. (1988). : Mineral constituents of some browse plants used in ruminants feeding in Southern Nigeria.: Nig. Journal. of Anim. Prod. 15: 56 62.
(2) ONWUKA, C.F.I. (1989). : Evaluation of the digestibility of browse using in sacco, in vitro and in vivo techniques. : Bull. on Animal Health and Prod. in Africa 37 (3): 291 296.
(3) ONWUKA, C.F.I. AND AKINSOYINU, A.O. (1989). : Effects of elemental sulphur levels on urea nitrogen utilization by West African dwarf goats and sheep. : Tropical Agric. (Trinidad) 66 (2): 158 160.
(4) ONWUKA, C.F.I. AND AKINSOYINU, A.O. (1989). : Protein and energy requirements for maintenance and gain by West African dwarf goats fed cassava (Manihot utilissima) leaves with peels as supplement. : Small Ruminant Research (Elsevier) 2 (4): 291 298.
(5) ONWUKA, C.F.I.; AKINSOYINU, A.O. AND TEWE, O. O. (1989): Feed value of some Nigerian browse plants: Chemical composition and in vitro digestibility of leaves. : East African Agric. & For. Journal. 54 (3):157 163.
(6) ONWUKA, C.F.I. (1992). :Hydrocyanic acid contents of tropical browses and their influence on performance of goats. : Food Chemistry. (Elsevier) 45: 5 10.
(7) ONWUKA, C.F.I. (1992): Tannin and Saponin contents of some tropical browse species fed to goats. : Tropical Agric. (Trinidad). 69 (2): 176 180.
(8) ONWUKA, C.F.I.; AKINSOYINU, A.O. AND TEWE, O. O. (1992) : Role of sulphur in cyanide detoxification in Ruminants.: Small Ruminant Research (Elsevier) 8 (4): 277 284.
(9) ONWUKA, C.F.I.; ADELIYI, G. O.; BIOBAKU, W. O. AND ADU, I. F. (1992). : Leucaena leucocephala leaves in rabbits diets. : Leucaena. Res. Rep. 13: 65 67.
(10) ONWUKA, C. F. I. (1994) : Nitrates and Nitrites in ruminants’ browse leaves : Nigeria Journal Animal Production 21 (1&2): 96-100.
(11) IPOSU, S. O.; ONWUKA, C.F.I. AND ERUVBETINE, D. (1994). :The relationships between selected egg quality traits and egg size. :Nigeria Journal Animal Production 21 (1&2): 156 160.
(12) BIOBAKU, W. O.; ONWUKA, C.F.I. AND ERUVBETINE, D.(1994). : Cassava flour as energy source for laying hens. :Journal of Agricultural Technology 2 (2): 76-80.
(13) ONWUKA, C.F.I.; EGBE, D. W.; UMOH, B. I. AND OKON, B. I. (1995). : Milk Production potentials of Holstein-Friesian cattle in the derived savannah zone. Nigeria Journal of Animal Production 22 (1): 85-88.
(14) ONWUKA, C.F.I. (1996). : Plant Phytates and Oxalates and their effects on performance of West African dwarf goats. Nigeria Journal of Animal Production 23 (1): 53 – 60.
(15) ONWUKA, C.F.I. AND OLATUNJI, E.N. (1996). :Substitutes for molasses and cement in urea-molasses blocks for ruminant animals. Nigeria Journal of Animal Production 23 (2): 169 – 173.
(16) ONWUKA, C.F.I.; ADETILOYE, P.O. AND AFOLAMI, C.A. (1997). : Use of household wastes and crop residues in Small Ruminant Feeding. Small Ruminant Research. (Elsevier) 24: 233 – 237. 5pp.
(17) ONWUKA, C.F.I. (1997). :Efficient Poultry waste retrieval and its conversion to feed. : Discovery and Innovation. 9 (3/4):150-155
(18) OGUNWOLERE, Y. O. AND ONWUKA, C. F. I. (1997). : Assessment of some qualities of commercial livestock feeds. : Nigeria Journal Animal Production 24 (2); 137-142.
(19) ONWUKA, C. F. I. (1997). : Effect of processing on mimosine contents of some leaves fed to livestock. : Archivos de Zootecnia 46 (174): 179 – 180.
(20) MAFIMIDIWO, A. O.; FANIMO, A. O.; ONWUKA, C. F. I. AND TEWE, O. O. (1998). : Performance and Serum metabolites of grower pigs fed GNC, extruded soyabean meal & cottonseed cake-based diets. Nigeria Journal Animal Production 25 (2): 152-156.
(21) ABIOLA, S. S. AND ONWUKA, C. F. I. (1998). : Reproductive performance of West African dwarf sheep and goats at village level in Ogun State, Nigeria. : Nigeria Journal Animal Production 25 (2) :79-82
(22) IPOSU, S. O., ADEBAYO, K., ERUVBETINE, D. AND ONWUKA, C.F.I. (2000). : Analysis of the relationship between the socio-economic characteristics of consumers and their preferences for egg quality types. : Nigerian Poultry Science. Journal 1:12-22
(23) AMAO, O. A., OSINOWO, O. A., ONWUKA, C.F.I., ABIOLA S.S., AND DIPEOLU, M.A. (2003).: Evaluation of Udder Traits as influenced by Bodyweight and Reproductive status of Red Sokoto Goats in a Guinea Savannah Environment. : Nigerian Agricultural Journal 34: 131-137
(24) O. A. AMAO, O. A. OSINOWO, C.F.I. ONWUKA, S.S. ABIOLA AND M.A. DIPEOLU. (2003).: Evaluation of Udder Traits in West African Dwarf goats. : Nigeria Journal of Animal Production 30 (2): 246-252
(25) O.A. AMAO, O.A. OSINOWO, C.A.M. LAKPINI, M.A. DIPEOLU, S.S. ABIOLA AND C.F.I. ONWUKA (2003). : Types and frequency of udder shapes and abnormalities in West African Dwarf and Red Sokoto goats. Nigeria Journal of Animal Production 30 (2): 253-258
(26) A.O. ONI, C.F.I. ONWUKA, O. O. ODUGUWA, O. S. ONIFADE, O. M. ARIGBEDE, AND J.E.N. OLATUNJI (2006). : Utilization of citrus pulp-based diets and Enterolobium cyclocarpum foliage (Jacq. Griseb) by West African Dwarf Goats. Medwell Online. : Journal of Animal and Veterinary Advances 5 (10): 814-818
(27) J. E. N. OLATUNJI, C.F.I. ONWUKA, D. ERUVBETINE, O. O. ODUGUWA AND A. B. J. AINA (2006) : Performance of West African Dwarf (WAD) sheep fed diets containing Lasalocid. Medwell Online. : Journal of Animal and Veterinary Advances 5 (10): 810-813
(28) A.O. ONI, C.F.I. ONWUKA, O. O. ODUGUWA, O. S. ONIFADE, O. M. ARIGBEDE, O. O. ONI AND U. Y. ANELE (2006). : Nutrient intake and Digestibility by West African Dwarf Goats fed Enterolobium cyclocarpum foliage (Jacq. Griseb) basal diet and Citrus pulp-based diets. . Medwell Online. : Journal of Animal and Veterinary Advances 5 (10): 828-831
(29) A.O. Oni, C.F.I. Onwuka, O. O. Oduguwa, O. S. Onifade, O. M. Arigbede, and J.E.N. Olatunji (2008). : Utilization of citrus pulp-based diets and Enterolobium cyclocarpum foliage (JACQ. GRISEB) by West African Dwarf Goats. : LIVESTOCK SCIENCE. 117 (2-3): 184-191 (UK).
(30) C.F.I. ONWUKA AND H.E. NELSON (2008) : Influence of Some Tropical Forages and Agro-Industrial by-Products on the Performance of NewZealand White Rabbits. : Nigeria Agric. Journal 39 (1): 55-60

(iii) PUBLICATIONS IN REFERRED/EDITED PROCEEDINGS

(31) ONWUKA, C.F.I. (1986) : Gliricidia sepium as dry season feed for goat production in Nigeria. In: Potentials of forage legumes in farming systems of sub-Saharan Africa. (Eds. Haque, I., Jutzi, S. and Neate, P.J.H.) ILCA. Addis Ababa, Ethiopia, pp. 533 539.
(32)  EKPENYONG, T.E. & ONWUKA, C.F.I. (1987) : Survey of small ruminant population and farming systems in Cross River State. In: Browse use and small ruminant production in South East Nigerian (Eds. Reynolds, L. and Atta Krah, A.N.). : ILCA, Addis Ababa. May 1987, pp. 13 22.
(33) ONWUKA, C.F.I. (1988) : Goat and Sheep production in Akwa Ibom and Cross River States of Nigeria. : Nigerian Society for Animal Production, eds. A.O. Akinsoyinu and O.A. Adebambo, April 20 24. pp. 120 128.
(34) IFUT, O.J. AND ONWUKA, C.F.I. (1991) Uyo Urban Livestock Survey. In: Nigerian Livestock Survey. FLD/PCS/National Livestock Project Division/Resources Inv. Management, London.
(35) ONWUKA, C.F.I.; TAIWO, B.B.A. AND ADU, I.F. (1992) : Browse species and supplements utilized for small ruminant feeding in Ogun State of Nigeria. African Feed, Resources Network Workshop, Gaborone, Botswana. (eds. J.E.S. Stares, A.N. Said and K.A. Katejile). March, 1991. ILCA, Addis Ababa, pp. 173 180.
(36) ONWUKA, C.F.I.; IFUT, O.J.; UMOH, B.I. AND UMANNA, P. F. (1992).: Alley farming as an intervention in ruminant feed supply gap in Southern Nigeria. Proc. International Conf. on Alley Farming. IITA/AFNETA/ICRAF/ILRI. In Alley Farming Research and Development (B.T. Kang, A. O. Osiname and A. Larbi, eds.) Pp. 278 – 281.
(37) ONWUKA, C.F.I. AND ADU, I.F. (1993) : Potentials for lost crops in livestock production in Nigeria. In: Lost Crops of Nigeria: Implications for food security (Eds. J.A. Okojie and D.U.U. Okali) Univ. of Agric., Abeokuta. pp. 330 339.
(38) DAVIES, A. T. AND ONWUKA, C.F.I. (1996). : Conservation of forage for dry season feeding in the humid zone of Nigeria. African Feed Resources Network Proc. 2nd African Feed Resources Network Workshop AFRNET, (Eds. J. Ndikumana and P. N. de Leeuw). Nairobi, Kenya. Pp. 93 – 96.
(39) ODUGUWA, O. O.; ODUGUWA, B. O.; ONWUKA, C. F. I. AND OLAJOBI, H. O. (1998).: Anti-nutritional factors in foliage of some leguminous trees and shrubs. Proceedings of NSAP Conference, In: Animal Agric. in West Africa: the Sustainability question. (O.O. Oduguwa; A. O. Fanimo and O. A. Osinowo, Eds.) Pp. 339 – 340.
(40) IPOSU, S.O.; ADU, I. F.; ONWUKA, C. F. I. AND AINA, A. B. J. (1998). : The Influence of physiological status on the nutritional status of village goats. In: Proceedings of NSAP Conference on Animal Agric. In W. Africa: the sustainability question. (O. O. Oduguwa; A. O. Fanimo and O. A. Osinowo, Eds.). Pp. 367 – 368.
(41) ONABANJO, O. O. AND C. F. I. ONWUKA (1998).: Gmelina arborea leaves and some supplements as dry season feed for West African dwarf (Fouta djallon) goats In: Proceedings of NSAP Conference Animal Agric. In West Africa: the sustainability question. (O. O. Oduguwa; A. O. Fanimo and O. A. Osinowo, Eds.) Pp. 369 – 370.
(42) ADU, I. F. AND ONWUKA, C.F.I ( 2001) : Livestock Production Systems in Nigeria and Environmental conservation. In: Biodiversity of the Rainforest Ecosystem in Nigeria. (Eds. A.O. Adeola, J. A. Okojie and L. O. Ojo). : Proceedings of a Colloquium organized/Published by FEPA-UNAAB Linkage Centre for Forest, Conservation and Biodiversity. 8-10 December 1998. Pp. 240-246.
(43) FAFIOLU, A.O.; ODUGUWA, O. O.; IKEOBI, C. O. N.; ONWUKA, C.F.I. AND M.A. ADEBULE (2004). : Performance and egg quality assessment of laying hens fed malted sorghum sprouts – based diets. : Proceedings of Annual Conference of Animal Science Association of Nigeria (ASAN) 13-16 Sept. 2004. Ebonyi State University, (EBSU), Abakaliki. Nigeria. (Eds. Ogunji et al.) pp 33-35.
(44) FAFIOLU, A.O.; ODUGUWA, O. O.; IKEOBI, C. O. N. AND ONWUKA, C.F.I. (2005). : The effect of feeding malted sorghum sprout on laying characteristics of domestic hens. Proc. 15th European Symposium on Poultry Nutrition. 25-29 September 2005. Balatonfüred, Hungary.: World Poultry Science Association.(Eds. Hungarian Poultry Science Association Pp. 606-608.
(45) ADERINBOYE, R.Y. AND ONWUKA, C.F.I. (2008) : Effect of monensin inclusion on nutrient degradation on Gmelina arborea foliage.: Proceedings of Annual Conference of Agric. Society of Nigeria (ASN) 19-23 Oct. 2008. Ebonyi State University, (EBSU), Abakaliki. Nigeria. Pp. 612-617
(46) ONI, A.O.; ARIGBEDE, O.M.; ABEGUNDE T.O. AND ONWUKA, C.F.I. (2009). : Chemical composition and in vitro gas production of four varieties of cassava leaves grown in south western Nigeria. : Proc. 34th Annual Conference of the Nigerian Society for Animal Production. (NSAP). 15-18 March 2009. University of Uyo. Uyo. Nigeria.(Eds. B.I. Umoh; A.B.I. Udedibie; I.P. Solomon; O.L. Obasi; B.I. Okon & E.J. Udoh). Pp. 296-299
(47) YUSUF, K.O.; ISAH, O.A., ONI, A.O.; ARIGBEDE, O.M.; ADELIYI O.O. AND ONWUKA, C.F.I. (2009).: Performance and nutrient digestibility of West African Dwarf (WAD) goats fed diets containing yam peel meal.: Proc. 34th Annual Conference of the Nigerian Society for Animal Production. (NSAP). 15-18 March 2009. University of Uyo. Uyo. Nigeria. (Eds. B.I. Umoh; A.B.I. Udedibie; I.P. Solomon; O.L. Obasi; B.I. Okon & E.J. Udoh). Pp. 519-521