Part 1 Origins, domestication, distribution and importance: taxonomy; origins; domestication; distribution; numbers and trends. Part 2 Types and breeds: traditional breed classification; new styles in breed classification; hybrids of "Camelus dromedarius" and "Camelus bactrianus". Part 3 Production systems: traditional systems; systems in transition; periurban systems; new systems. Part 4 Adaption: behaviour; anatomy; physiology. Part 5 Reproduction: male fitness; female fitness; reproductive performance; summary. Part 6 Management: movement and grazing control; watering management and grazing pressure; water needs; supplementary feeding; reproductive management and castration; herd composition; identification; age; drug treatment. Part 7 Nutrition: the digestive system; nutritional physiology; feed preferences; feeding behaviour; intake; digestibility. Part 8 Health: infectious and contagious diseases; parasitic diseases; respiratory disease complex; reproductive diseases and disorders. Part 9 Productivity: population growth; individual weight and growth; milk; work; meat; leather and hair; blood; comparative productivity.