1- 07/06-14/06/2009:  University of Vet. Medicine, Vienna-Austria. 

1- 07/06-14/06/2009:  University of Veterinary Medicine, Vienna-Austria.

 2-  01/05-12/05/2008:  International Livestock Research Institute (ILRI), Nairobi, Kenya.

3- 20/08-05/09/2007:  University of Damascus, Faculty of Agriculture, Syria.

4- 26-28/02/2007:  LPPS Training centre, Butibagh, Sadri, India.

5- 15-26/01/2007:  Sokoine University of Agriculture (SUA), Morogoro, Tanzania.

6- 19/10-20/10/2006:  Free University of Berlin, Germany.

7- 13/08-20/09/1988:  Colorado State University, USA.