As animal science professional and a Tropical livestock production expert, this book should be referred by College and University Students, Teachers and Researchers. I also recommend other researchers should engage in such researches that enables those producers of indigenous cattle to Africa and the tropics. The cattle for which this study was conducted are said to have relative tolerance to trypanosomiasis. Further investigation and detail studies are demanded to make the resource more productive. Demissu Hundie Lecturer and Researcher at Wollega University, Ethiopia.