Conference/Seminar/Workshop papers:
33. Osinowo, O.A., Omoyakhi, M. and Abiona, J. 2007. Effect of feed type on growth rate of Giant African Land Snail, Archachatina marginata (Swainson, 1821). Proceedings, 32nd Annual Conference of the Nigerian Society for Animal Production, University of Calabar, Calabar.
32. Bibi-Farouk, F. and Osinowo, O.A. 2006b. Reproductive performance of Yankasa ewes fed fresh Ficus thonningii leaves. Proceedings, 31st Annual Conference of the Nigerian Society for Animal Production, Bayero University, Kano.
31 Bibi-Farouk, F. and Osinowo, O.A. 2006a. Feed intake and weight gain of Yankasa ewes fed varying proportions of Ficus thonningii leaves. Proceedings, 31st Annual Conference of the Nigerian Society for Animal Production, Bayero University, Kano.
30 Ibeagha-Awemu, E.M., Bemji, M.N., Osinowo, O.A., Chiatti, F., Chessa, S. and Erhardt, G. 2005. Caprine milk protein polymorphisms: Possible applications for African goat breeding and preliminary data in Red Sokoto. Proceedings 4th All African Conference on Animal Agriculture and 31st Annual Meeting of the Tanzania Society for Animal Production (TSAP), Arusha, Tanzania.
29 Bemji, M.N., Osinowo, O.A., Ozoje, M.O., Adebambo, O.A. and Aina, A.B.J. 2005. Peak milk yield and persistency in West African Dwarf and Red Sokoto goats intensively managed in South-western Nigeria. Proceedings of the 30th Annual Conference of the Nigerian Society for Animal Production, 30: 9-13.
28 Bemji, M.N., Osinowo, O.A., Adebambo, O.A., Ozoje, M.O. and Aina, A.B.J. 2004. The validity of estimating daily milk yield (24 h) from part yield (8 h) in West African Dwarf and Red Sokoto goats. Proceedings of the 29th Annual Conference of the Genetics Society of Nigeria, University of Agriculture, Abeokuta, Nigeria, 11th-14th October, 2004, p.81-83.
27 Bemji, M.N., Fajuke, R.Y. and Osinowo, O.A. 2003. Social dominance in goats: Effects of breed and horn size. Proceedings of the 28th Annual Conference of the Nigerian Society for Animal Production, 28: 141-143.
26 James, I.J. and Osinowo, O.A. 2002. Changes in udder dimensions of West African Dwarf, Red Sokoto and Sahel goats during pregnancy and their relationship with partial daily milk yield. Proceedings of the 27th Annual Conference of the Nigerian Society for Animal Production, Federal University of Technology, Akure, Nigeria, 17th-21st March, 2002.
25 Afolayan, RA*, Malau-Aduli, AEO, Abubakar, BY*, Osinowo, OA*, Olayemi, ME*, Lakpini, CAM*, Oni, OO*, 1999. ‘Genetic analysis of the growth performance of crossbred sheep’, In: JK Joseph, B Awosanya, DF Apata, MA Belewu, JO Atteh, KL Ayorinde (Editors). Enhancing the contribution of the livestock sub-sector to the Nigerian economy. Nigerian Society for Animal Production, 24 300-301.
24 Osinowo, O.A. 1998. Guest Lecturer, “Strategic Options for Livestock Development in Ogun State, Annual General Meeting of the Livestock Department, Ministry of Agriculture, Abeokuta, Ogun State, September 30, 1998.
23 Osinowo, O.A. 1998. Guest Lecturer, 4th Dr. Tai Solarin Memorial Lecture, “Nigeria: The National Question and Options”, July 27, 1998, Mayflower School, Ikenne, Nigeria.
22 Bemji, M.N., Osinowo, O.A., Ehoche, O.W. and Aduku, A.O. 1998. Genetic and phenotypic correlations of some reproductive traits in Yankasa sheep. Proceedings of the Silver Anniversary Conference of the Nigerian Society for Animal Production and the Inaugural Conference of the West African Society of Animal Production. Gateway Hotel, Abeokuta, Nigeria, 21st-26th March, 1998, p.468-469.
21 Abdulmalik, ME*, Iyeghe, GT*, Afolayan, RA*, Malau-Aduli, AEO, Adeyinka, IA*, Oyedepo, FD*, Osinowo, OA*, ‘Genetic and environmental factors affecting litter size and gestation length of three breeds of rabbits’, 18th Annual Conference of the Nigerian Society for Animal Production, Federal University of Technology, Owerri, Nigeria, Book of Abstracts 173
20 Osinowo, O.A., Buvanendran, V., Abubakar, B.Y., Olayemi, M.E., Balogun, R.O., Onifade, O.S., Jagun, A.G., Trimnell, A.R., Ekpe, G.A. Olorunju, S.A.S. and Dennar F.O. 1991. Productivity of Yankasa sheep under semi-intensive management with twice-yearly lambing at Shika, Nigeria. 1. Birth weight, weaning weight, preweaning gain and weaning rate, NAPRI Seminar Series, 17th September 1991, NAPRI, Shika.

19 Osinowo, O.A., Abubakar, B.Y. Adewuyi, A.A. Onifade, O.C. and Dennar, F.O. 1991. Estimates of genetic and phenotypic parameters of birth weight, weaning weight and Preweaning gain in Yankasa sheep. Paper presented, 16th Ann. Conf., Nig. Soc. Anim Prod., Usman/Danfodio University, Sokoto 9pp.
18 Afolayan, R.A., Osinowo, O.A. Abubakar, B.Y. and Dennar, F.O., 1991. Environmental effects on postpartum conception in Yankasa ewes. Paper presented, 16th Ann. Conf. Nig. Soc. Anim. Prod., Usman Danfodio University, Sokoto 9pp.
17 Otaru, S.M., Osinowo, O.A., Abubakar, B.Y. and Dennar, F.O. 1991. Comparison of two methods of estimating repeatability for litter size in sheep. Paper presented, 16th Ann. Conf. Nig. Soc. Anim. Prod., Usman Danfodio University, Sokoto 9pp.
16 Balogun, R.O., Olayemi, M.E., Osinowo, O.A. and Dennar, F.O. 1991. Environmental factors affecting birth weight and litter size in Yankasa sheep. Paper presented, 16th Ann. Conf., Nig. Soc. Anim. Prod., Usmanu Danfodiyo University, Sokoto 12pp.
15 Olayemi, M.E., Balogun, R.O., Osinowo O.A. and Abubakar, B.Y. 1991. Repeatability estimates, and phenotypic correlation of birth weight and litter size in Yankasa sheep. Paper presented, 16th Ann. Conf., Nig. Soc. Anim. Prod., Usman Danfodio University, Sokoto 7pp.
14 Osinowo O.A., Abubakar, B.Y. Dennar, F.O. Abolude, C.F., Olayemi, M.E. and Olorunju, S.A. 1990. Factors affecting dry water intake, feed efficiency and live weight gain in Yankasa sheep on performance test. Paper presented. 15th Ann. Conf., Nig. Soc. Anim. Prod., Ogun State University, Ago-Iwoye. 5pp.
13 Olayemi, M.E. and Osinowo O.A. 1990. Progesterone profiles of Yankasa ewes during the oestrous cycle and early pregnancy. Paper presented, 15th Ann. Conf., Nig. Soc. Anim. Prod. Ogun State University, Ago-Iwoye. 9pp.
12 Hassan, W.A., Buvanendran, V., Dim, N.I., Osinowo, O.A. and Abubakar, B.Y. 1990. Heritability and repeatability estimates in Yankasa breed of sheep. Paper presented, 15th Ann. Conf., Nig. Soc. Anim Prod. Ogun State University, Ago-Iwoye. 10pp.
11 Afolayan, R.A. and Osinowo O.A. 1990. Mating performance of postpartum Yankasa ewes. Paper presented, 15th Ann. Conf., Nig. Soc. Anim., Prod., Ogun state University, Ago-Iwoye. 8pp.
10 Osinowo O.A. 1989. Reproduction in Yankasa sheep: A decade of research at NAPRI (1979-1989). Invited paper presented at the 7th Ann. Conf., Nig. Soc. For the Study of Reprod. Obafemi Awolowo University, Ile-Ife 29pp.

9 Osinowo O.A., Olorunju, S.A.S, Abubakar, B.Y., Buvanendran, V., Onifade, O.S., Lakpini, C.A.M., Ekpe, G.A. and Dennar F.O. 1989. Adjustment factors for weaning weight and litter size in Yankasa sheep. Paper presented, 14th Ann. Conf., Nig. Soc. Anim. Prod., University of Agriculture, Makurdi, 7pp.
8 Osinowo O. A., Olorunju S A S. Otchere E O and Arigi L A. 1989. Development of a weigh-band for Yankasa sheep and Red Sokoto goats. Paper presented at the 14th annual conference of the Nigerian Society for Animal Production held at Makurdi, 2-6 April, 1989.
7 Osinowo O.A., Buvanendran, V. and Koning, M.L. 1988. A study of coat type, pigmentation and wattle incidence in Yankasa sheep and their effects on fertility and weaning weight Paper presented, 13th Ann. Con., Nig. Soc. Anim Prod., University of Calabar. 10pp.
6 Osinowo O.A. 1987. How to prepare feasibility studies for mixed farm projects. Invited paper presented, Seminar on “The preparation of agricultural projects feasibility studies”, Nig. Agric. and Coop. Bank Ltd, Ilorin. 13pp.
5 Oyedipe, E.O., Pathiraja, N., Gyang, E., Edqvist, L.E., Osinowo O.A. and Madej, A. 1985. Effect of pregnant mare serum gonadotropin (PMSG) with or without human chorionic gonadotrophin (HCG) on time of oestrus, ovulation rate and plasma progesterone concentrations of progestagen-treated Yankasa ewes. Paper presented, 1st Re. Coord. Mg. on “Improving sheep and goat productivity with the aid of nuclear techniques” ILRAD, Nairobi, Kenya. FAO/IAEA project. 18pp.
4 Trimnell, A.R., Osinowo O.A. and Buvanendran, V. 1984. Gestation length in Yankasa sheep. Paper presented, 4th Ann. Conf., Nig. Soc for the Study of Reprod., Ahmadu Bello University, Zaria. 6pp.
3. Osinowo O.A., Eduvie, L.O., Ekpe, G. and Marire, B.N. 1983. Studies on physiology of washed ram spermatozoa. Paper presented, 3rd Ann. Conf. Nig. Soc. For the Study of Reprod., University of Ife, Ile-Ife. 12pp.
2. Osinowo O.A., Eduvie, L.O., Bale, J.O. and Oyedipe, E.O. 1981. Precision, variability and repeatability of ram semen quality of Nigeria, University of Jos.
1. Osinowo O.A. and Awobajo, I.O. 1978. Characteristics and preservation of local zebu semen. Paper presented, 5th Ann. Conf. Nig. Soc. Anim. Prod., Ahmadu Bello University, Zaria. 19pp.

Books published
3. Osinowo, O.A. 2006. Introduction to Animal Reproduction. Sophie Academic Publishers, ISBN 978-37674-0-2, Intec Printers, Ibadan, 91 pages.
2. Osinowo, O.A. and Adu, I.F. 1986. Guide on intensive sheep production. ISBN 978-2364-09-6. NAPRI, Shika, Nigeria. 23pp.
1. Osinowo, O.A. 1999. Strengthening the role of Universities in the National Agricultural Research System of Nigeria. International Service for National Agricultural Research (ISNAR), The Hague, Netherlands, 83 pages.

Books co-edited
8. Twenty-five years of the Nigerian Society for Animal Production (1973-1998). Edited by O.A. Osinowo. Nigerian Society for Animal Production, 1998.
7. Thirty years of Research at Ahmadu Bello University, 1962-1992. A.B.U. Zaria, 1995.
6. The Nigerian Sheep and Goat Production Manual. Eds – Osinowo, O.A. and Abatan, A.A. NAPRI, 1990.
5. Livestock Extension services and animal production in Nigeria. Eds-Dafwang, I.I. Umaru, M. and Osinowo, O.A., AERLS, 1987. 339 pp.
4. Animal Production in Nigeria. Eds. Osinowo, O.A.,, Taiwo, B.B.A., Njoku., P.C., Tegbe. T.S.B. and Umaru, M. Nig. Soc. Anim. Prod.., 1987. 208pp.
3. Small Ruminant Production in Nigeria, Eds – Adu, I.F., Osinowo, O.A., and Taiwo, B.B.A. NAPRI, 1987. 232 pp.
2. Beef Production in Nigeria. Eds – Osinowo, O.A., Ikhatua, I.J. and Ehoche, W.O. ISBN 978-2364-00-2. NAPRI, 1983. 631 pp.
1. Poultry production in Nigeria. Eds-Olomu, J.M.,
Offiong, S.A., Buvanendran, V. and Osinowo, O.A., NAPRI, 1982. 183 pp.

Consultancy / Technical Reports:
8. Adu, I.F., Uzoukwu, M. Efiom Ene-Obong, E., Osinowo, O.A., Ikurior, S.A., Oguntona, E.B. and Okuneye, P.A. Report of the Programme Harmonization Committee. 476pp. Committee of Vice-Chancellors, Universities of Agriculture, Nigeria.
7. ISNAR, 1998. Strengthening the Role of Universities in the National Agricultural Research System of Nigeria. International Service for National Agricultural Research (ISNAR), The Hague, Netherlands.
6. ISNAR, 1998. Strengthening the Role of Universities in the National Agricultural Research System in Sub-Saharan Africa: Nigerian Case Report. International Service for National Agricultural Research (ISNAR), The Hague, Netherlands.
5. Osinowo, O.A., Sanni, A.S. and Uza, D.V. 1992d.
Feasibility Report on the Establishment of the Red Sokoto goat Nucleus Breeding Centre, Zugu, Sokoto State. 48pp. National Livestock Project Division, Kaduna.
4. Osinowo, O.A., Sanni, A.S. and Uza, D.V. 1992c.
Feasibility Report on the Establishment of the Balami Sheep Nucleus Breeding Centre, Marguba, Borno State. 46pp. National Livestock Project Division, Kaduna.
3. Osinowo, O.A., Sanni, A.S. and Uza, D.V. 1992b
Feasibility Report on the Establishment of the Yankasa Sheep Nucleus Breeding Centre, Shika, Kaduna State. 52pp. National Livestock Project Division, Kaduna.
2. Osinowo, O.A., Sanni, A.S. and Uza, D.V. 1992a.
Feasibility Report on the establishment of the Uda Sheep Nucleus Breeding Centre, Ladanawa, Katsina State. 48pp. National Livestock Projects Division, Kaduna.
1. Osinowo, O.A. 1992. Working Papers for the Livestock Sub-sectorial review: Small Ruminant. 41pp. Livestock Planning Monitoring, Evaluation and Coordinating Unit, Federal Department of Livestock and Pest Control Services, Abuja.