1) Ahmed, M.M., Makawi, S.A. and Gadir, A.A. (1997) Reproductive performance of Saanen bucks under tropical climate. Small Ruminant Research, 26: 151 – 155.

2) Adam, A.A., Ahmed, M.M., Makawi, S.A. and Elsharif, B.A.(1997). Some observations on the reproductive performance of Saanen bucks maintained under climatic conditions of Khartoum (Sudan). J. Natural Resources and Environmental Studies (JONARES) 1: 11 – 14.

3) Ahmed, M.M., Makawi, S.A. and A.S. Jubara (1998). Synchronization of oestrus in Nubian goats. Small Ruminant Research, 30: 113 – 120.

4) Makawi, S.A., N.S. Hammali, O.S. Ali and B.A. Elsharif (2000). Comparison of laboratory and field results of Friesian semen processed with Tris and whole milk diluents in the Sudan. Sudan J. of Scientific Research, 8 (1) : 162 – 176.

5) Babiker, E.A. and Makawi, S.A. (2004). Fertility of fresh and frozen – thawed semen of Nubian, Saanen and Crossbred bucks in Sudan. Sudan J. of Vet. Sci. and Anim. Husb. 43 (1,2): 54-62.

6) Babiker, E.A. and Makawi, S.A. (2004). Influence of extender on survival of cooled diluted and frozen – thawed semen of Nubian, Saanen and Crossbred bucks. Sudan J. of Vet. Sci. and Anim. Husb. 43 (1,2): 63-71.

7) Babiker, E.A. and Makawi, S.A. (2004). Effect of season on the freezability of semen in Nubian, Saanen and crossbred bucks. Sudan J. of Vet. Sci. and Anim. Husb. 43 (1,2): 72-80.

8) Babiker, E.A. and Makawi, S.A. (2005). The influence of season on sexual behaviour and semen quality of Nubian bucks in Sudan. Sud. J. Vet. Sci. Anim. Husb. Vol. 44 (1&2): 83-102.

9) Makawi, S.A. and Manahil, Z.A. (2005). Reproductive performance of Sudanese Desert ewes following oestrous synchronization with Luprostiol and Flourogestone Acetate (FGA). The 7th Scientific Conference for the National Center for Research. 13 – 15 December, 2005. Khartoum.

10) Makawi, S.A.; Osman, M. S. and Babiker, E.A. (2004). Influence of season on cryopreservation of semen from Kenana bulls. Sud. J.Anim. Prod. Vol. 17 (in press).

11) Zainelabdin, H.A. and Makawi, S.A. (2006). Age at puberty and the effect of season of birth on age and body weight at first conception in Holstein. Friesian Journal of Animal and Veterinary Advances, 5 (5) 418-426.

12) Mohamed Nour, M. S., Musa, S. M. and Makawi S. A. (2006). Reproductive efficiency of Desert sheep following surgical intra – uterine artificial insemination in the Sudan. Small Ruminant Research (Submitted).

13) Makawi, S.A. and Babiker, E.A. (2006). Seasonal variations in semen characteristics of Nubian, Saanen and Crossbred buck in Sudan. Small Ruminant Research. (Submitted).

14) Makawi,S.A., Manahil, Z.A. (2007). Fertility response of Desert ewes to hormonal oestrous synchronization and artificial insemination using fresh diluted semen. Journal of Animal and Veterinary Advances, 6 (3): 385-391.

15) Makawi, S. A. and Badawi, M. E. (2007). Effect of Caesarean Section (C.S.) on Uterine Aerobic Bacteria and Post-Partum Period in Nubian Goats. Journal of Animal and Veterinary Advances, 6 (3): 375-378.

16) Makawi, S.A; Elsharif, B.A. and Babiker, E.A. (2007). Effect of season on freezability of semen from two breed – types of Desert sheep in the Sudan. Journal of Animal and Veterinary Advances 6 (7): 846-849.