Livestock and environmental goods offer some security from such shocks. About 70 percent of the rural poor in Africa own livestock, contributing significantly to household and community resilience to disasters, particularly in arid and semi-arid zones. More than 200 million people rely on their livestock for income (sales of milk, meat, skins) and draught power. Overall, livestock contributes about 30 percent of the gross value of agricultural production in Africa. According to the International Livestock Research Centre (ILRI), opportunities exist to commercialize livestock production to target regional deficits in livestock products where they can be produced competitively.