1. Department of Animal Production, Faculty of Agriculture, University of Benghazi, Benghazi, Libya
2. Department of Companion Animal Medicine & Surgery, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Malaysia
3. Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, Ontario, Canada
4. Department of Animal Science, College of Arts and Sciences, University of Benghazi, Benghazi, Libya
5. Department of Animal Production, Faculty of Agricultural Engineering Sciences, University of Baghdad, Baghdad, Iraq
6. Department of Agricultural Education, School of Vocational Education, Umar Suleiman College of Education Gashua, Gashua, Nigeria