Addition of Phytase Artificial Feed to Increase Digesting, Specific Growth and Survival Rate of Nile Tilapia fingerlings (Oreochromis niloticus) - Rachmawati, Diana; Program Studi Budidaya Perairan, Jurusan Perikanan Fakultas Perikanan dan Ilmu Kelautan,Universitas Diponegoro Jl. Prof. Soedarto,SH Tembalang, Semarang (JURNAL SAINTEK PERIKANAN, 2015)