odder and organic fertilizer gave economic added value. Economic cost analysis and mass balance analysis used to know the contribution of hay in the integration of livestock-rice. The result showed that the utilization of hay can reduce 60 % of the requirement for animal feed, added of organic matter to the land can repaire characteristic of physics, chemical and biology soil, added of straw fertilizer 5 ton/ha can substitute KCl 50 kg/ha and Urea 20 kg/ha, and other added value is the form of biogas.

Key words : Livestock-rice integration, economic analysis