Tryptophan-13C11 Supplementation and its Effects on Cannibalism, Growth and Survival of Ompokbimaculatus Post-larvae

This study examined how Tryptophan-13C11 supplementation to the diet of Ompokbimaculatus post larvae affects cannibalism, survival, and growth. • Experiment: Post larvae were fed diets with varying Tryptophan-13C11levels (0%, 0.5%, 1%, 2%, 4%) for 30 days. • Stocking density: 10 days old post-larvae were stocked @ 10 post-larval-1 • Experimental period: 30 days Findings: • Tryptophan-13C11 increased serotonin levels in the fish and slightly decreased growth rate. • Survival rates were higher in groups fed Tryptophan-13C11diets. Conclusion: Dietary Tryptophan-13C11 can be a useful tool to improve survival rate in O. bimaculatus post larvae rearing. However, it may slightly impact growth rates.