Journal of Continuing Education and Extension, 2015; 6(2): 1022-1035Different feedstuffs and feeding system may affect the sustainability of livestock production. In this review, two aspects of sustainability have been token into consideration namely, ecological and economic sustainability. Comparisons between the two aspects- of sustainability ecological and economical have been made for pasture-baced system and indoor feeding system. This has been done for developing countries. while the impact of intensive farmings system on economic sustainability in developed countries is relatively stable. their environmental and ecological sustainability in this countries is questionable.