Open Access Research Paper Views (851) Effect of dietary supplemented semi-refined sunflower oil with vitamin E on egg quality of laying hens Mohammad Narimani-Rad, Habib Aghdam Shahryar, Alireza Lotfi Int. J. Biosci. 2(8), 8-13, August 2012. Keywords: Egg quality, Haugh unit, Laying hen, Semi-refined oil Details