the impact of different levels of vitamin e and selenium on the performance, quality and the hatchability of eggs from breeding japanese quails

the purpose of the present study was to evaluate the impact of vitamin e and selenium (se) supplementation on the performance, egg quality and hatchability of eggs from japanese breeding quails. the experiment was conducted over a 60 day period using 135 quails in a completely randomized design (crd) with two levels of vitamin e and two levels of selenium (80 mg/kg of vitamin e+0.2 mg/kg organic selenium and 160 mg/kg vitamin e+0.4 mg/kg organic selenium). for each treatment, 3 replicates were considered. each replicate included 15 quails (12 females and 3 males). experimental results indicated that feed intake, shell thickness, the weight of egg whites and the percentage of egg hatchability stored for 7 days were significantly affected by the treatments (p