Acknowledgements

The authors wish to thank the Ethiopian Agricultural Research Organisation (Agricultural Research and Training Project), the Amhara Regional Agricultural Research Institute and the International Livestock Research Institute for their financial support. Professors N. H. Casey and W. A. van Niekerk (University of Pretoria) and Dr. Azage Tegegne (ILRI), supervisors of the senior author, are thanked for their contributions to the project proposal described herein, and for permitting the work to be used in the form of this case study.

Unless otherwise mentioned photographs were taken by the senior author.