Mbination of enzymes papain and phytase on commercial feed toward growth rate, survival rate, feed conversion ratio and feed efficiency of tilapia (Oreochromisniloticus)

Tilapia fish (Oreochromis niloticus) was one of freshwater fishery product that people are interested in. Higher price in good quality was problem in the cultivation. Alternatives such as adding papain and phytase enzyme had been introduced in solving this problem. This study aimed to establish effect and best combination of papain and phytase dose toward growth rate, survival rate, feed conversion ratio (FCR) and feed efficiency of tilapia fish. This study used entirely randomized form with four treatments and five reproductions. The treatment used were P0 (control), P1 (papain 5% and phytase 0.15%), P2 (papain 3% and 0.1% phytase) and P3 (papain 5% and phytase 0.15%). The data were analyzed using ANOVA and Duncan’s multiple range test. The result showed combination of papain and phytase enzymes in commercial feed affected growth rate (weight), FCR and feed efficiency but no any influence in length and survival rate. The dose of papain 3% and 0.1% of phytase enzymes (P2) was optimum dose to increase growth rate, feed efficiency and decreased FCR.