Jasek , A.; Li, X.; Xu, H.; Raab, R.; Broomhead, J.; Lee, J. Effects of Increasing Concentrations of Maize-Expressed Non-Starch Carbohydrase Enzyme on Broiler Growth Performance and Ileal Nutrient Digestibility. Int. J. Poult. Sci. 2018, 17 (11), 543–551. https://doi.org/10.3923/ijps.2018.543.551.