Effect of Azolla supplementation on growth of rohu (Labeo rohita) fingerlings

Abstract

The present study was conducted to evaluate the Azolla supplementation effect of fish Labeo rohita fingerlings growth performance. The weight gain, per cent weight gain, specific growth rate (SGR), food conversion ratio (FCR) and gross conversion efficiency (GCE) were significantly improved in treatments as compared to control. Still the highest weight gain (27.450±3.839g), per cent weight gain (45.863±1.677%), SGR (1.024±0.051%) and GCE (0.257±0.010) were recorded in T2 (200g Azolla per kg basal diet). The fishes fed with T2 have also indicated better food utilization with lesser food conservation ratio (FCR) i.e. 3.903±0.163 as compared to other treatments. Therefore, it can be concluded that @200g/kg Azolla supplemented diet had a significant role in improving the growth of Labeo rohita. Thus the dose of 200 g/kg Azolla is recommended for supplementation in the diet of L. rohita.