I express my sincere thanks to R.G. Scholtens, formerly of ILCA, and A. Lauria, of the Faculty of Veterinary Medicine at the University of Milan, Italy, who encouraged me to write this monograph. Thanks also go to A.C. Warnick of the University of Florida, USA, R.D. Randel of Texas A&M University, USA, L.E. Edquist of the Swedish University of Agriculture and D.H. Hale of the University of Zimbabwe for their most useful comments. I greatly appreciate the contributions of my colleagues in ILCA's Animal Reproduction and Health Section. My personal and sincere gratitude is extended to Paul Neate and John Stares of ILCA's Information Section for editorial assistance. Finally, the contributions of other staff of the same Section in designing, typesetting and printing this monograph are acknowledged.
E. Mukasa-Mugerwa
