List of Articles pregnancy rate Open Access Article Abstract Page Full-Text 1 - Effect of three methods of estrus synchronization: Osynch, Co-Synch and Prostaglandin on the fertility of subfertile dairy cows habib cheraghi khosro Parsaeimehr ali hosseinkhani sadegh alijani hossein daghighkia Open Access Article Abstract Page Full-Text 2 - Fertility of Holstein Cattle in a Subtropical Climate of Egypt El-Wishy El-Wishy Open Access Article Abstract Page Full-Text 3 - Association between Plasma and Milk Urea on the Insemination Day and Pregnancy Rate in Early Lactation Dairy Cows A. Chaveiro M. Andrade A.E.S. Borba F. Moreira da Silva Open Access Article Abstract Page Full-Text 4 - The Relationship between the Mobility of Sperm on Pregnancy Results by Intrauterine Insemination Elnaz Lak Fatemeh Shahmolaghamsari Kamran Nasirzadeh Mahshid Elahi Open Access Article Abstract Page Full-Text 5 - Effect of CIDR-based (CIDR-synch) protocol, for timed artificial inseminations, and on the conception rate of dairy cows عبدالرضا Rastegarnia, هیوا Anvari savojbolghi,