PUBLICATIONS
Theses:
2. Osinowo, O.A. 1979. Testicular growth and semen qualities of West African bulls. Ph.D Thesis, Dept. of Veterinary Physiology and Pharmacology,
Ahmadu Bello University, Zaria, Nigeria
1. Osinowo, O.A. 1975. Studies on deep freezing boar spermatozoa.
MSc Thesis, Department of Animal Husbandry, University of Sydney, Australia, 223 pages.
Journal articles, Monographs and Published Conference papers:
58. James, I.J., Osinowo, O.A. and Amoo, T.O. 2007. Estimation of liveweight from chest girth and withers height measurements in WestAfrican Dwarf goats. Nigerian Journal of Animal Production 34 (2): 181- 187.

57. Abiona, J.A., Osinowo, O.A., Ozoje, M.O., Eruvbetine, D., Abioja, M.O. and Abe, O.S. 2007. Differences in the spermatozoa and ova of two species of giant African land snails (Archachatina marginata and Achatina achatina). Nigerian Journal of Animal Production 34 (2): 306- 315.

56. Bemji, M.N., Osinowo, O.A., Adebambo, O.A., Ozoje, M.O. and Aina, A.B.J. 2006. Liveweight changes during lactation and its relationship with milk offtake in West African Dwarf and Red Sokoto goats intensively managed in the humid zone of Nigeria. Nigerian Journal of Animal Production 33(1 & 2): 145-150.

55. Egbowon, B.F., Osinowo, O.A., Biobaku, W.O. and Dipeolu, M.A. 2005. Factors affecting colostrum and milk of West African Dwarf and Red Sokoto goats. Archivos de Zootecnia 54(208): 1-4. direct.bl.uk/research/2B/15/RN186769520.html

54. Ademolu, K.O., Idowu, A.B., Mafiana, C.F. and Osinowo, O.A. 2004. Performance, proximate and mineral analyses of African giant land snail (Archachatina marginata) fed different nitrogen sources. African Journal of Biotechnology 3(8): 412-417.

53. James, I.J. and Osinowo, O.A. 2004b. Relationship between udder measurements during pregnancy and partial daily milk yield in goats. Nigerian Journal of Animal Production 31(1): 252-262. www.cababstractsplus.org/abstracts/Abstract.aspx?AcNo=20043077299

52. James, I.J. and Osinowo, O.A. 2004a. Changes in udder size and liveweight of West African Dwarf, Red Sokoto and Sahel goats during lactation and their phenotypic relationship with partial daily milk yield.Nigerian Journal of Animal Production 31(1):119-129. www.cababstractsplus.org/Abstracts/Abstract.aspx?AcNo=20043077211

51. Remi-Adewunmi, B.D., Gyang, E.O. and Osinowo, O.A. 2004. Abattoir survey of foreign body rumen impaction in small ruminants. Nigerian Veterinary Journal 25(2): 32-38.

50. Momoh, O.M., Nwakalor, L.N., Abubakar, B.Y. and Osinowo, O.A. 2003. Selection intensity and generation interval in a flock of Yankasa sheep. East African Agricultural and Forestry Journal 68(3): 147-154.

49. Amao, O.A., Osinowo, O.A., Onwuka, C.F.I., Abiola, S.S., Dipeolu, M.A. and Lakpini, C.A.M. 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.

48. Amao, O.A., Osinowo, O.A., Lakpini, C.A.M., Dipeolu, M.A., Abiola,S.S. and Onwuka, C.F.I. 2003. Types and frequency of udder shapes and abnormalities in West African Dwarf and Red Sokoto goats. Nigerian Journal of Animal Production 30(2): 253-258.

47. Amao, O.A., Osinowo, O.A., Onwuka, C.F.I., Abiola, S.S., Dipeolu, M.A. 2003. Evaluation of udder traits in West African Dwarf goats. Nigerian Journal of Animal Production 30(2): 246-252.

46. Tekdek, L.B., Trimnell, A.L., Dim, N.I. and Osinowo, O.A. 2003. Exophthalmos with strabismus in rams in Zaria – Nigeria. Tropical Journal of Animal Science 6(1): 75-76.

45. Akpa, G.N., Asiribo, O.E., Oni, O.O., Alawa, J.P., Dim, N.I., Osinowo, O.A. and Abubakar, B.Y. 2002. Milk production by agropastoral Red Sokoto goats in Nigeria. Tropical Animal Health and Production 34(6): 525-533.

44. Oladimeji, B.S., Osinowo, O.A., Alawa, J.P. and Hambolu, J.O. 2001. Seasonal effects on oestrus patterns and progesterone profiles of Yankasa ewes of different age-groups in the sub-humid tropics. Nigerian Journal of Animal Production 28 (2): 211-216.

43. Bemji, M.N., Osinowo, O.A., Ehoche, O.W. and Aduku, A.O. 2001. Environmental factors and heritability estimates of lambing interval and age at first lambing in Yankasa sheep under controlled mating system. ASSET Series A 1 (2): 37-44.

42. Bemji, M.N., Osinowo, O.A., Ehoche, O.W. and Aduku, A.O. 2001a. Litter size in Yankasa sheep: Environmental factors, additive adjustment factors and heritability estimate. ASSET Series A 1 (1): 107-114.

41. Afolayan, R.A., Abubakar, B.Y., Dim, N.I. and Osinowo, O.A. 2001. Inheritance of growth and lactation parameters in Yankasa sheep. Nigerian Journal of Animal Production 28: 9-13.

40. Adebambo, O., Ikeobi, C.O.N., Ozoje, M.O., Adenowo, J.A. and Osinowo, O.A. 1999. Colour variations and performance characteristics of the indigenous chickens of South Western Nigeria. Nigerian Journal of Animal Production 26: 15-22.

39. Lamidi, O.S., Osinowo, O.A., Adamu, A.M. and Afolayan, R.A. 1998. Performance and nutrient utilization by sheep fed Ficus leaves. Nigerian Journal of Animal Production 25: 63-67.

38. Osinowo, O.A. 1998. Strengthening the Role of Universities in the National Agricultural Research System of Nigeria. International Service for National Agricultural research, The Hague, 68 pp.

37. Olayemi, M.E., Osinowo, O.A., Dim, N.I. and Eduvie, L.O. 1997. Estimate of genetic and phenotypic parameters for litter size and weaning weight in Yankasa sheep Nigerian Journal of Animal Production 24(2): 106-109.

36. Osuhor, C.U., Osinowo, O.A., Nwagu, B.I., Dennar, F.O. and Abdullahi-Adee, A. 1997. Factors affecting age at first lambing in Yankasa ewes. Animal Reproduction Science 47: 205-209.

35. Oladimeji, B.S., Osinowo, O.A., Alawa, J.P. and Hambolu, J.O. 1996. Estimation of average values for pulse rate, respiratory rate and rectal temperature and development of a heat stress index for adult Yankasa sheep. Bulletin of Animal Health and Production in Africa, 44: 105-107.

34. Bemji, M.W., Osinowo, O.A., Ehoche, O.W. and Aduku, A.O. 1996. Birth weight and litter birth weight in Yankasa sheep: Environmental factors and heritability estimates. Nigerian Journal of Animal Production 23(1): 5-11.

33. Iyeghe-Erakpotobor, G.T., Osinowo, O.A., Abdulmalik, M. and Nwagu, B.I. 2001. Evaluation of growth rates of three breeds of rabbits raised in the northern guinea savanna of Nigeria. Journal of Animal Production Research 17 (1 & 2): 78-88.

32. Iyeghe, G.T., Abdulmalik, M., Osinowo, O.A., Adeyinka, I.A. and Nwagu, B.I. 1996. Genetic and environmental factors affecting litter size, gestation length and weaning weight in rabbits. Journal of Animal Production Research 15 & 16: 81-89.

31. Iyeghe, G.T., Osinowo, O.A., Abubakar, B.Y., Nwagu, B.I. and Dennar, F.O. 1996. Growth rates of Yankasa sheep under semi-intensive management system. Indian Journal of Animal Sciences 66(6): 619-623.

30. Butswat, I.S., Osinowo, O.A. Adegbola, T.A. and Mbap, S.T. 1995. Influence of birth weight, year and parity on preweaning mortality in Yankasa sheep. Nigerian Journal of Animal Production 22 (2): 120-124.

29. Osinowo, O.A. Abubakar, B.Y., Olayemi, M.E., Balogun, R.O., Onifade, O.S., Adewuyi, A.A., Trimnell, A.R. and Dennar, F.O. 1994. Preweaning performance of Yankasa sheep under semi-intensive management. In: Small Ruminant Research and Development in Africa. Proceedings of the Second Biennial Conference of the African Small Ruminant Research Network, Arusha, Tanzania, 7-11 December, 1992. Eds: Lebbie, S.H.B., Rey, B. and Irungum, E.K. ILCA, Addis Ababa, Ethiopia. p. 65-68.

28. Barje, P.P., Osinowo, O.A. and Dim, N.I. 1994. Effects of type of diluent, storage and depth of insemination on the fertility of chilled ram spermatozoa. Nigerian Journal of Animal Production 21: 42-46.

27. Akpa, G.N., Osinowo, O.A., Dim, N.I. and Oyedipe, E.O. 1994. Effects of plane of nutrition and rearing method on Yankasa Lambs: Growth rate, scrotal development and puberty. Nigerian Journal of Animal Production 21: 101-104.

26. Balogun, R.O., Olayemi, M.E. and Osinowo, O.A 1993. Environmental factors affecting birth weight and litter size in Yankasa sheep. Nigerian Journal of Animal Production 20: 14-19.

25. Osinowo, O.A., Abubakar, B.Y. and Trimnell, A.R. 1993. Genetic and Environmental effects on gestation length in Yankasa sheep. Animal Reproduction Science, 34 (2): 111-118.

24. Butswat, I.S., Osinowo, O.A. and Dim, N.I. 1992. Studies on ram semen preservation at ambient temperatures by flow dialysis techniques. Tropical Agriculture (Trinidad) 69 (2): 42-46.

23. Osinowo, O.A., Olorunju, S.A.S., Otchere, E.O. and Arigi, L.A 1992. Relationship between chest girth and liveweight in Yankasa sheep and Red Sokoto goats. Journal of Animal Production Research 12 (2): 69-72.

22. Osinowo, O.A., Marire, B.N. and Ekpe, G.A. 1992. Preliminary study of postnatal growth and reproductive tract development in Yankasa rams. Animal Reproduction Science, 27: 49-54. www.medwelljournals.com/fulltext/java/2008/633-637.pdf

21. Hassan, W.A., Buvanendran, V., Dim, N.I., Osinowo, O.A. and Abubakar, B.Y. 1991. Genetic and phenotypic correlations for body weights in Yankasa sheep. Nigerian Journal of Animal Production, 18: 12-18.

20. Marire, B.M., Kumi-Diaka, J., Osinowo, O.A., Oyedipe, E.O. and Ojo, S.A 1990. The relationship between body weight, testicular size and sperm reserve in Red Sokoto bucks. Nigerian Agricultural Journal, 25: 91-97.

19. Osinowo, O.A., Buvanendran, V. and Koning, M.L. 1990. A note on the occurrence and inheritance of wattles in Yankasa sheep. Nigerian Journal of Animal Production, 17: 63-64.

18. Butswat, I.S., Osinowo, O.A. and Dim, N.I. 1990. Fertility test for ram semen preserved at ambient temperatures by discontinuous flow dialysis. Theriogenology, 34: 795-799. www.ncbi.nlm.nih.gov/pubmed/16726882

17. Trimnell, A.R., Osinowo, O.A., Olorunju, S.A.S. and Buvanendran, V. 1988. Environmental effects on gestation length in Yankasa sheep. Journal of Animal Production Research, 8: 33-38.

16. Osinowo, O.A., Ekpe, G. Eduvie, L.O., Ahmed, M.S. & Ogbonna, J. 1988. Control of washing-induced changes in ram spermatozoa. Proc. 11th Intern. Congr. Anim Reprod. And A.I. Dublin, Paper No. 281.

15. Osinowo, O.A. and Abubakar, B.Y. 1988. Appropriate breeding strategies for small ruminant production in West and Central Africa. Proceedings of the OAU/BAR Workshop on Improvement of Small Ruminants in West and Central Africa. University of Ibadan, Nigeria, November 21-25, 1988.

14. Marire, B.N., Osinowo, O.A. Kumi-Diaka, J & Ojo, S.A. 1988. Development of the reproductive tract of Red Sokoto male goat. Nigerian Veterinary Medical Journal, 17: 385-395.

13. Osinowo, O.A., Ahmed, M.S. & Ekpe, G.A. 1988. Semen quality and sperm output of Yankasa rams at different ages. Theriogenology, 29(2): 381-386.

12. Osinowo, O.A., Doma, M.S Pathiraja, N. & Buvanendran, V. 1987. Effect of level of dry season supplementary feeding on the reproductive performance of twice-yearly lambing Yankasa sheep. Nigerian Journal of Animal Production, 14:41-49.

11. Osinowo, O.A., Ahmed, M.S. & Ekpe, G.A. 1987. The patterns of oestrus, conception and lambing in Yankasa ewes following progestagen treatment at different postpartum intervals. Tropical Veterinarian, 5: 27- 29.

10. Osinowo, O.A. and Adu, I.F. 1986. Guide on intensive sheep production. ISBN 978-2364-09-6. NAPRI, Shika, Nigeria. 23pp.

9. Osinowo, O.A. and Ekpe, G.A. 1985. Post-partum intervals to oestrus and conception in Yankasa sheep. Journal of Agricultural Science, 104: 253-255.

8. Adu, I.F. and Osinowo, O.A. 1985. The effects of dietary protein concentration feeding level on the performance of weaned lambs. Journal of Animal Production Research, 5: 45-58.

7. Osinowo, O.A. 1982. Oestrus synchronization, artificial insemination and early rebreeding in Yankasa sheep. Nigerian Journal of Animal Production, 9: 107-111. www.ilri.org/InfoServ/Webpub/Fulldocs/X5472b/x5472b0e.htm

6. Osinowo, O.A., Bale, J.O., Oyedipe, E.O. and Eduvie, L.O. 1982. Motility and eosin uptake of formaldehyde-treated ram spermatozoa. Journal of Reproduction and Fertility, 65: 389-394. www.springerlink.com/index/F51J573201942588.pdf

5. Osinowo, O.A. 1981. Studies on leakage of enzymes from washed bull and ram spermatozoa. Journal of Reproduction and Fertility, 62:549-554. www.reproduction-online.org/cgi/reprint/62/2/549

4. Osinowo, O.A., Molokwu, E.C.I. and Osori, D.I.K. 1981. Growth and testicular development in Bunaji bulls. Journal of Animal Production Research, 1: 55-67.

3. Osinowo, O.A., Dennis, S.M., Osori, D.I.K. and Molokwu, E.C.I. 1977. Scrotal and testicular dimensions of some West African bulls. Nigerian Journal of Animal Production, 4(2): 31-36.

2. Osinowo, O.A. and Salamon, S. 1976. Fertility test of frozen boar semen. Australian Journal on Biological Sciences, 29:335-339.

1. Osinowo, O.A. and Salamon, S. 1976. Examination of some processing methods for freezing boar semen. Australian Journal of Biological Science, 29:325-333