OPEN ACCESS PEER-REVIEWED | RESEARCH ARTICLE

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Surianti Surianti
Fitratul Muaddama
Wahyudi Wahyudi
Sri Wahyuni Firman

Abstract

This study aims to determine the effect of the dose of fermented rice bran using Lactobacillus sp. on growth performance and enzyme activity in tilapia. This research was conducted in Sidenreng Rappang Regency. The test animal used was tilapia larvae measuring 1.17 g. The maintenance container is a tarp pool with a size of 1 m x 1 m x 1 m filled with fresh water as much as 85 L. The study was designed using a completely randomized design consisting of four treatments and three replications, thus there were 12 experimental units. The treatment was determined based on the dose of fermented rice bran using Lactobacillus sp. which differ, namely 0, 10, 15 and 20%. The test feed was given to tilapia larvae, which were stocked with 20 fish per container for 60 days of rearing. The specific growth rate data of tilapia were analysed using analysis of variance (ANOVA) and enzyme activity was analysed descriptively based on the viability of tilapia. The results showed that tilapia fed with 20% fermented rice bran had a significant effect on the specific growth rate, protease and amylase enzyme activity. The optimal dosage of fermented rice bran using Lactobacillus sp. is 15-20%.

Keywords:
enzyme activity, rice bran, tilapia, Lactobacillus sp., specific growth rate

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