List of Articles Performance Open Access Article Abstract Page Full-Text 1 - The effect of climatic conditions on the concentration of stevioside in Stevia production in different regions of Iran and optimization of stevioside extraction آلاله نیکوئی محمد حجت الاسلامی جواد کرامت حسین کیانی Open Access Article Abstract Page Full-Text 2 - Growth performance, carcass characteristics, and immune responses in broiler chickens fed dietary oregano (Origanum vulgare L.) leaves as an alternative for antibiotic growth promoter Seyed kazem Mosavi Majid Toghyani Farshid Kheiri Nasir Landy