This report assesses - the relevance of genetic improvement research to tilapia farming - how genetically improved farmed tilapia (GIFT) research and development have improved breeds - the development and dissemination of breeding methods and protocols - the institutional, socioeconomic, and environmental impacts of GIFT in Bangladesh, Philippines, Thailand, and Viet Nam. The overall conclusion is that the ADB-financed technical assistance was successful and played a catalytic role in GIFT development in diverse institutional and socioeconomic environments. Fish are important in the diet of people in the poorest countries, supplying more than 50% of their animal protein intake. Attention to fish production and consumption will help to achieve the Millennium Development Goal of eradicating hunger and reducing malnutrition. The growing use of GIFT indicates the important contribution of tilapia to nutrition among the poor. The evaluation concluded that this was a successful case of aid coordination as ADB worked with other development partners (including the WorldFish Center and the United Nations Development Programme) to achieve these good results.