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Vol. 10, Special Issue 10 (2021)

The efficacy of dietary supplementation of duck weed (Lemna minor) on survival rate and digestive enzyme activity of Labeo rajasthanicus (Datta and Majumdar, 1970) fingerlings

Author(s):
MC Meena, BK Sharma, SK Sharma and NK Yadav
Abstract:
Duck weed mixed with conventional diet at different levels 10%, 20%, 30%, and 40% and was fed to Labeo rajasthanicus fingerlings for 56 days. The experiment was performed with four replications for four test diets and control. The control diet was prepared with rice bran, GNOC, soybean meal, corn flour, wheat flour, and the Mineral mixture. These experimental feeds were given to fishes @ 3-4% of body weight per day. The experimental water has shown average values of different water quality parameters viz. water temperature 25.6-28.0 °C, pH 7.63-8.27, dissolved oxygen 5.10 to 7.40 mg/l, hardness 610 to 638 mg/l, total alkalinity 102.00 to 138 mg/l, and electric conductivity 201 to 246 mS cm-1. The highest protease activity was found in treatment T2 (0.2044 units/ mg protein/ min) while the lowest was obtained in treatment control (0.1339 units/ mg protein/ min). Highest amylase activity was found in T2 (0.1337 units/ mg protein/ min.) and lowest in control (0.0936 units/ mg protein/ min.). Highest lipase activity found in T2 (4.09887 units/ mg protein/ min.). The protease and amylase activities of Labeo rajasthanicus have shown significant difference (p<0.05) among different treatments, while lipase activity did not show any significant difference (p>0.05). Survival rate of each fish group at dietary duckweed (Lemna minor) levels or among different sizes of Labeo rajasthanicus was found unaffected.
Pages: 563-566  |  327 Views  89 Downloads
How to cite this article:
MC Meena, BK Sharma, SK Sharma and NK Yadav. The efficacy of dietary supplementation of duck weed (Lemna minor) on survival rate and digestive enzyme activity of Labeo rajasthanicus (Datta and Majumdar, 1970) fingerlings. The Pharma Innovation Journal. 2021; 10(10S): 563-566.

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