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Journal of Fisheries and Aquatic Science

Year: 2017 | Volume: 12 | Issue: 6 | Page No.: 273-283
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Authors

Anita Bhatnagar

Anita Bhatnagar

Oshin Dhillon

Keywords

Research Article

Evaluation of Optimum Protein Requirement and Cost Effective Eco-friendly Source for Labeo calbasu (Hamilton, 1822)

Anita Bhatnagar Anita Bhatnagar's LiveDNA and Oshin Dhillon
Objective: The present study was conducted to evaluate the optimum protein level and eco-friendly, cost effective feed for significant growth performance of Labeo calbasu. Materials and Methods: Two experiments were conducted, in experiment 1, five experimental feeds (T1 to T5) containing 35, 38, 40, 42 and 45% protein were prepared. Processed soybean served as major protein source. Experiment 2 was to assess the cost effective protein source to replace soybean, five experimental feeds (D1 to D5) containing soybean, moong, cowpea, duckweed and water spinach were prepared. Data were analyzed by one-way analysis of variance (ANOVA) followed by Duncan’s multiple range tests. SPSS was used for analysis. Results: Weight gain, feed efficiency, intestinal enzymatic activities and proximate composition of carcass of fish fed on diet with 40% protein level were significantly (p<0.05) higher than the other groups. Significantly (p<0.05) higher growth performance, low feed conversion ratio (FCR) and lower excretion of ammonia and o-phosphate production in holding water was observed in fingerlings fed with diet D4 of experiment. Conclusion: These results indicate that a dietary protein level of 40% and use of Lemna as protein source can be recommended for optimum growth, efficient protein utilization and cost effective culture of L. calbasu.
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