This study aims to determine the effect of adding probiotics in feed on growt and survival rate of tilapia. This study was designed using a Completely Randomized Design (CRD), with a P factor (Probiotic EM4) consisting of 4 treatments with 5 replications each so that there were 20 experimental units. The addition of EM4 probiotics in tilapia feed gave significant effect (P>0,05) on absolute weight growth, specific growth rate. The survival rate of tilapia with the treatment of adding EM4 probiotics in feed ranges between 82-86%.
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