Prematuration of bovine oocytes with butyrolactone I reversibly arrests meiosis without increasing meiotic abnormalities after in vitro maturation - Ferreira, Elisa Melo; Vireque, Alessandra Aparecida; Adona, Paulo Roberto; Ferriani, Rui Alberto; Navarro, Paula Andrea de Albuquerque Salles (European Journal of Obstetrics & Gynecology and Reproductive Biology, 2009)