The effects of Tulsi and marigold as dietary supplement on growth, haematological and biochemical parameters in Labeo rohita (Hamilton, 1822)

Abstract

The efficacy of Ocimum sanctum (Tulsi) and Tagetes erecta (Marigold) on growth-promotion, haematological and biochemical profiles in fingerlings of Labeo rohita was evaluated. Different diets were prepared 0% (control), 1% Tulsi (T1), 3% Tulsi (T2), 1% Marigold (T3) and 3% Marigold (T4) and fed to the fishes. The sampling of the experiment was done on the 18th, 36th, 54th, 72th and 90th days for growth, haematological, biochemical parameters and water quality parameters analysis. The lowest FCR and significantly higher SGR, FCE, and percentage (%) weight gain were found in T2 group. Highest body weight gain, length and percentage length was found in T4 group. At the end of the experiment the biochemical parameters indicated that inclusion of Ocimum sanctum and Tagetes erecta in feed significantly (p