Ademola , S. (2011) “Effects of Roxazyme G® and Maxigrain® on Performance, Egg Quality, Cost-Benefit and Haematological Parameters of Laying Hens Fed Wheat Offal, Corn Bran and Brewery Dry Grain Diets”, International Journal of Poultry Science, 11(1), pp. 33–38. doi:10.3923/ijps.2012.33.38.