This study demonstrates the beneficial effect of a carbohydrase complex (i.e. Rovabio® Advance L) on growth performance of broilers fed corn-soybean meal-based diets with reduced levels of apparent metabolic energy (AME) and digestible amino acids (DAA). The results concluded that Rovabio® Advance L supplementation has significantly enhanced the performance of broilers with an improved body weight gain (BWG) of +3.3% and feed conversion ratio (FCR) of -2.7%, regardless of nutritional reduction levels.