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Abstract
People in developing countries currently consume on average one-third the meat and
one-quarter of the milk products per capita compared to the richer North, but this
is changing rapidly. The amount of meat consumed in developing countries over the
past has grown three times as much as it did in the developed countries. The Livestock
Revolution is primarily driven by demand. Poor people everywhere are eating more animal
products as their incomes rise above poverty level and as they become urbanized. By
2020, the share of developing countries in total world meat consumption will expand
from 52% currently to 63%. By 2020, developing countries will consume 107 million
metric tons (mmt) more meat and 177 mmt more milk than they did in 1996/1998, dwarfing
developed-country increases of 19 mmt for meat and 32 mmt for milk. The projected
increase in livestock production will require annual feed consumption of cereals to
rise by nearly 300 mmt by 2020. Nonetheless, the inflation-adjusted prices of livestock
and feed commodities are expected to fall marginally by 2020, compared to precipitous
declines in the past 20 y. Structural change in the diets of billions of people is
a primal force not easily reversed by governments. The incomes and nutrition of millions
of rural poor in developing countries are improving. Yet in many cases these dietary
changes also create serious environmental and health problems that require active
policy involvement to prevent irreversible consequences.