The aim of this research was to study the effect addition of phytase to diets of quality of Arabian chicken eggshell in the first production. This research was done on Balai Pembibitan Ternak Unggul (BPTU) Sapi Dwiguna dan Ayam Petelur Sembawa for six weeks from January - February 2009. This research using completely randomized design (RAL) with six treatments, five replications analysis and ea…