Vol. 9, Issue 9, Part B (2025)

The efficacy of Amalaki Rasayan (AR) as a dietary supplement in Labeo rohita fry was evaluated over a 60-day period. Amalaki (Indian gooseberry) is renowned for its high vitamin C content and its therapeutic efficacy is enhanced when processed into the Ayurvedic preparation AR. It serves as a potent antioxidant, even at concentrations far lower than standard Amalaki powder. The present study aims to determine the optimal dosage of AR to enhanced growth function in L. rohita fry. AR was incorporated into the diet at levels of 0% (T₀), 0.5% (T₁), 1% (T₂), 1.5% (T₃), and 2% (T₄) (equivalent to 5 g, 10 g, 15 g, and 20 g per kg of feed, respectively). Growth metrics such as mean weight, total weight gain, percentage weight gain, specific growth rate (SGR), and feed conversion ratio (FCR) were measured. Results indicated that treatment T₄ yielded significantly superior mean weight and weight gain, while treatments T₃ and T₄ both demonstrated significantly higher percentage weight gain and SGR. FCR values were notably lower in treatments T₃ and T₄. No significant differences in survival rates were observed among the treatments. Regression analysis indicates strong linear relationships between AR inclusion and final body weight (R² = 0.908), SGR (R² = 0.883), and FCR (R² = 0.856). Correlation analysis confirmed significant associations between AR dose and growth parameters. The inclusion of AR at a dosage of 2% (20 g/kg of feed) significantly enhances overall health of L. rohita fry.