List of Articles Photoperiod Open Access Article Abstract Page Full-Text 1 - Photoperiod as a Factor for Studying Fluctuations ofSeminal Traits during Breeding and Non-BreedingSeason M.M. Pourseif G.H. Moghaddam S.A. Rafat H. Daghighkia A. Pourseif Open Access Article Abstract Page Full-Text 2 - Effect of Season on Dry Matter Intake and Reproductive Activity of Merghoz Buck Goats in West of Iran م. سوری ر. میرمحمودی Open Access Article Abstract Page Full-Text 3 - Effects of Photoperiods during the Laying Period on Broiler Breeder Performance ت. مکرمی ن. هدایت ایوریق ب. نویدشاد