Probiotic Effect of <Emphasis Type="Italic">Bacillus licheniformis fb11</Emphasis> on the Digestive Efficiency and Growth Performance in Juvenile <Emphasis Type="Italic">Chitala chitala</Emphasis> (Hamilton, 1822) |
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Authors: | Anisa Mitra Pratap Kumar Mukhopadhyay Sumit Homechaudhuri |
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Institution: | 1.Aquatic Bioresource Research Laboratory, Department of Zoology, University College of Science,University of Calcutta,Kolkata,India;2.Regional Research Centre,Central Institute of Freshwater Aquaculture,Kolkata,India |
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Abstract: | Five isocaloric (430 kcal 100 g?1), isonitrogenous (40% CP) experimental diets were formulated with different concentrations of Bacillus licheniformis fb11 probionts (isolated from the gut of Chitala chitala) viz. Control (without probionts), 5 × 104 CFU g?1 (D1), 5 × 105 CFU g?1 (D2), 5 × 106 CFU g?1 (D3), 5 × 107 CFU g?1 (D4), 5 × 108 CFU g?1 (D5) to evaluate its efficiency in C. chitala juvenile. The best growth performance, feed utilisation, specific α-amylase, total protease and lipase activity were observed with the diet D3 (P < 0.05). The lowest Presumptive Pseudomonas Count, Motile Aeromonad Count, Total Coliform Count was observed for D3 (P < 0.05) on 90th day of trial. Two uppermost values were achieved in case of crude protein for D3 and D2 (P > 0.05). The highest lipid content (12.12 ± 0.4 g 100 g?1) was found for D5 (P < 0.05). The highest gross energy (18.75 ± 0.21 MJ 100 g?1) of carcass was recorded for D3. Thus B. licheniformis fb11 at the concentration 5 × 106 CFU g?1 as probiotic supplement promoted growth, digestion in C. chitala juvenile significantly by modulating intestinal microflora. |
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