Kafein dalam Medium Maturasi Meningkatkan Fertilisasi dan Menekan Frekuensi Polispermi Oosit Domba dengan Maturasi Diperpanjang (CAFFEINE SUPLEMENTATION IN MATURATION MEDIUM IMPROVE NORMAL FERTILIZATION AND REDUCED THE FREQUENCY OF POLYSPERMY IN SHEEP OOC - Adelia, Reski (Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association, 2017)