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Published online by Cambridge University Press: 27 February 2018
Economic projections into the year 2020 (Delgado et al., 1999) indicate that the global demand for animal products will increase sharply, particularly in developing countries, and suggest that the bulk of the increased production to meet this demand will come from large-scale, industrial production. Many smallholders in developing countries depend at least partly on livestock as a source of livelihood; for pastoralists, livestock are by definition the main source of livelihood.