The effect of probiotic and vitamin C as feed supplements on the recovery of operculum deformity in barramundi (Lates calcarifer) seed oleh Haryanti Haryanti, Sembiring Sari Budi Moria, Permana I Gusti Ngurah, Muzaki Ahmad, Dewi Luh Yuliani, Tantra Kadek Mas, Suriadyani Ni Nengah, Giri I Nyoman Adiasmara, Sugama Ketut