■ Three months training program funded by DAAD at the University of Hanover (Germany) for analysis of Sera and Tissues of chicks fed various levels of dietary Ricinus communis and Jatropha curcas (1990).

■ One month course on use of Computer in Biomedical Science, University of Khartoum, 1994.

■ Three months training program funded by DAAD at the University of Hanover (Germany) for analysis of sera of goats treated with Calotropis procera, Ficus elastica and Euphorbia abyssinica (1997).