1. Demonstrator of Poultry diseases 1977 2. Assistant lecture of Poultry diseases 1980 3. Institute of Poultry Diseases, School of Vet. Med., Fredric Epart University, Hannover, W-Germany. As visiting scholar. 1983 – 1984. 4. General manager of AGA poultry Farms, Saudi Arabia. 1986 – 1987 5. Lecture of Poultry diseases 1984 6. Associate professor of Poultry diseases 1989 7. Professor of Poultry diseases 1994- January 2013. 8. Member of the Scientific Committee of the functions of the professors - the Supreme Council of Universities 1999 -2002. 9. Rapporteur of the Scientific Committee of the functions of the professors - the Supreme Council of Universities 2013-2015. 10. Emeritus Professor of Poultry diseases, Faculty of Veterinary Medicine January 2013- till now

Poultry diseases, Veterinary Medicine