This joint study on trypanotolerant livestock was initiated by the Food and Agriculture Organization (FAO), the International Livestock Centre for Africa (ILCA) and the United Nations Environment Programme (UNEP). Preparatory research was carried out in early 1977 by R Queval (ILCA Consultant) and I Reh (ILCA). Eighteen countries of West and Central Africa were visited between September 1977 and June 1978 by Ph Lhoste (joint FAO/ILCA Consultant), Y J Wissocq, C H Hoste and I Reh with coordination by J C M Trail (all ILCA).
Grateful acknowledgement is made to the governments of the 18 countries visited for the welcome given and assistance provided to the various team members on their missions. The interest taken in this study and the assistance provided to the team by veterinary and animal production services and research stations have greatly contributed to its completion. Thanks are also due to staff members of FAO, UNDP, commercial firms and other organizations, without whose assistance the study could not have been undertaken. Grateful acknowledgement is made to S Westley for editing and G Maloba and R Ndonyo for typing the report.
The two-volume report was written at the ILCA office in Nairobi, Kenya by the trypanotolerance team, J C M Trail, C H Hoste and Y J Wissocq, and Ph Lhoste in collaboration with I L Mason.
