POTENSI NETRALISASI IMUNOGLOBULIN Y ANTITETANUS YANG DIISOLASI DARI TELUR AYAM (THE POTENCY NETRALIZATION OF ANTI TETANUS IMMUNOGLOBULIN Y THAT WERE ISOLATED FROM CHICKEN EGGS) (Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association, 2007)