The contribution of livestock to food production, factors influencing livestock development, determinants of farming system, classification of farming system (pastoral, agro-pastoral, crop-livestock mixed, ranching and landless production systems), assessment of livestock production systems; global situation of livestock production: dairy, beef, small ruminants, swine and poultry production; the livestock sector in Ethiopia: livestock population, livestock breeds and their distribution cattle, sheep, goats, camel, equines, poultry; livestock production systems in Ethiopia; constraints of livestock production in Ethiopia: livestock feed, diseases, genetic potential, husbandry systems, knowledge about the existing farming systems and livestock marketing systems.