This document summarizes the Feeds and Forages Technology Development Platform. The platform aims to make animal source food production more efficient economically and environmentally by improving feed resources and technologies. Key partners include CIAT, ICARDA, ILRI, WorldFish, CIMMYT, ICRISAT, IRRI and private sector organizations. The main research issues are assessing existing feed resources, making better use of resources, producing more and better feeds, facilitating surplus-deficit transfers, and monitoring resource use impacts. Technologies being developed include improved food-feed crops, forages, processing options, and decision tools to optimize feed costs and income from animal source foods.