<![CDATA[Tawes fish (Barbonymus gonionotus) is an indigenous Indonesian freshwater species experiencing increasing popularity and demand, particularly among communities in the Southwest Aceh region. Despite widespread cultivation efforts by local fish farmers to meet market needs, production remains constrained, limiting the achievement of optimal aquaculture outcomes. One approach to addressing this limitation involves the incorporation of Moringa oleifera leaf extract into feed to improve overall protein quality, thereby offering a potential strategy to enhance growth performance. This study aimed to evaluate the effects of Moringa oleifera leaf extract supplementation in feed on the growth performance and survival of tawes fish (Barbonymus gonionotus). A completely randomized design was employed with four treatments and three replicates per treatment. The treatments consisted of a control diet (P0) and feed supplemented with Moringa oleifera leaf extract at concentrations of 50 ml/kg feed (P1), 100 ml/kg feed (P2), and 150 ml/kg feed (P3). fish measuring 2–3 cm in length were stocked at a density of 1 fish/L. Fish were fed three times daily at 5% of their body weight over a 40 day experimental period. The results demonstrated that Moringa oleifera leaf extract supplementation in feed had a significant (P < 0.05) positive effect on both survival and growth performance of Barbonymus gonionotus. The diet supplemented with Moringa oleifera leaf extract at 100 ml/kg feed (P2) was identified as the most effective treatment, yielding optimal growth performance and survival.]]>
