Comparative Evaluation of GIFT On-station. On-station trials during DEGITA were conducted in Bangladesh, PRC, Thailand, and Viet Nam to compare the performance of GIFT with available farmed strains of Nile tilapia. The Philippines was excluded because of the many on-station trials already conducted there during the development of GIFT. In ponds, GIFT gave better yields than local tilapia strains (ranging from 15% higher in Viet Nam to 65% higher in Bangladesh). In cages, GIFT gave 7% and 69% better yields than local tilapia strains, respectively, in the PRC and Bangladesh.30 There were wide variations in tilapia farming expertise, practices, and production environments among and within countries, which precluded firm conclusions from on-station trials about any overall comparative advantage of GIFT.