Effect of duckweed (Lemna minor) supplemented diet on growth performance and proximate composition of Labeo rajasthanicus (Datta and Majumdar, 1970) fingerlings

The present study was conducted to evaluate the effect of duckweed (Lemna minor) supplemented diet on the selected aspects of growth and proximate composition of Labeo rajasthanicus fingerlings. The net weight gain, percent weight gain, specific growth rate (SGR), food conversion ratio (FCR), and gross conversion efficiency (GCE) in fingerlings fed with different levels of duckweed (Lemna minor) mixed diets. The highest value of Net weight gain (2.02g ±0.0246), percent weight gain (5.131% ±0.0512), SGR (0.714% ±0.0071), FCR (4.416 ±0.0787) and GCE (0.239 ±0.0024) were reported in T2 (Lemna minor) as compared to other experimental diets including control. The best and safe levels of supplementation of duckweed (Lemna minor) in the feed of Labeo rajasthanicus fingerlings in the present study were found to be at 20% duckweed.