Kermanshahi, H. and Riasi, A. (2005) “Effect of Dietary Dried Berberis Vulgaris Fruit and Enzyme on Some Blood Parameters of Laying Hens Fed Wheat-Soybean Based Diets”, International Journal of Poultry Science, 5(1), pp. 89–92. doi:10.3923/ijps.2006.89.92.