A comparative study of the effects of pelleted and extruded feed on growth, financial revenue and nutrient loading of Nile tilapia (<i>Oreochromis niloticus</i>L.) cage culture in a lacustrine environment

We compared the benefits of using extruded feed (EF), against pelleted (PF) to guide cage culture investments in Great Lakes. Three out six cages same farm had fish that were fed EF and other half, belonging a different PF. The diets similar crude protein, lipid energy content. However, fiber content PF was 4 times higher than EF. on grew better (438.0 ± 7.4 g) (220.8 2.9 g). cost production for about 26% lower PF, primarily because utilization. load P N diet 59% 29% higher, respectively, when used. Therefore, delivered economic gains with environmental impact feed.