Evaluating Eichhornia-based feeds: Nutritional and economic implications for Labeo rohita growth and health

Abstract

The potential of Eichhornia-based leaf protein concentrate (ELPC) as an alternative protein source to groundnut oil cake (GNOC) in the formulated diet of rohu (Labeo rohita) was assessed. Five iso-nitrogenous diets (30% CP) were formulated, replacing GNOC with ELPC at different proportions in triplicate: Control (0% ELPC), T1 (25% ELPC), T2 (50% ELPC), T3 (75% ELPC), and T4 (100% ELPC). Feeding trials on rohu were conducted for a period of 60 days, maintaining stocking densities at 1g/L in a completely randomized design. Fish were fed at 10% of body weight for the first 30 days and 8% thereafter. Proximate analysis of raw ingredients, formulated feed, and carcass composition was conducted to assess the growth performance, water quality, genotoxicity, and feed economics at suitable intervals of time. The results revealed significant (p