There has been an increasing development in the utilization of biotechnology especially solid - state fermentation. Solid-state fermented feed has been a possible strategy to close the gap between supply and demand of feed resources, promote feed hygiene safety, enhancing energy conservation and emission reduction. It has also been associated with methods of improving the nutritional value of non-conventional feed stuff. The process of fermentation has been employed to produce functional feed that has potentials to improve birds’ gastro intestinal tract micro ecology, health and production performance. This study reviews the potential of solid state fermented non - conventional feed stuff on the growth performance, gastro intestinal health, meat yield and quality. This is essential as it will further reduce the cost of feedstuffs needed for production because solid state fermentation will enhance the utilization of non-conventional feedstuffs by monogastric animals. The study also reveals the need for more research in the application of fermented feed especially in monogastric animal production, it likewise shows the need for the most cost effective process of solid state fermentation.