Penambahan Glutathione pada Medium Fertilisasi Efektif Mendukung Pembentukan Pronukleus dan Perkembangan Awal Embrio Sapi (SUPPLEMENTATION OF GLUTATHIONE IN FERTILIZATION MEDIUM EFFECTIVELY SUPPORT NORMAL PRONUCLEUS FORMATION AND EARLY BOVINE EMBRYONIC DE - Nugroho, Aras Prasetiyo (Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association, 2017)