Evaluation of Lactobacillus plantarum as a water additive on host associated microflora, growth, feed efficiency and immune response of giant freshwater prawn, Macrobrachium rosenbergii (de Man, 1879). (22nd July 2014)

• Record Type: Journal Article
• Authors: Dash, Gyanaranjan; Raman, Ram Prakash; Prasad, Kurcheti Pani; Marappan, Makesh; Pradeep, Mangottil Ayyappan; Sen, Swatipriyanka
• Is Part Of: Aquaculture research. Volume 47:Number 3(2016)
• Page Start: 804
• Page End: 818
• Publication Date: 2014-07-22
• Subjects: Lactobacillus plantarum -- water additive -- Macrobrachium rosenbergii -- growth performance -- immune parameters; Aquaculture -- Periodicals; Fishery management -- Periodicals; 639.8
• DOI: 10.1111/are.12539
• Languages: English
• ISSNs: 1355-557X

Abstract

Abstract: A 90‐day experiment was conducted by rearing 1020 prawn juveniles (0.54 ± 0.03 g) in water supplemented with three different concentrations of probiotic bacteria viz . T1 (10 7 cfu L −1 ), T2 (10 8 cfu L −1 ), T3 (10 9 cfu L −1 ) and the control (C) (unsupplemented water), to evaluate probiotic effect of Lactobacillus plantarum . In the present study, the growth parameters (WG%, SGR) and feed utilization parameters (FCR, PER) significantly improved ( P < 0.05) in T3. The growth and feed utilization parameters though improved marginally in T1 and T2, the difference was not significant ( P > 0.05) compared to the control. The gastro‐intestinal Lactobacillus sp. count increased significantly ( P < 0.05) in all the treatment groups, whereas the decrease in harmful bacteria was significant ( P < 0.05) in T3 compared to the control. Similarly, the Lactobacillus sp. count in culture water increased significantly ( P < 0.05) in all the experimental groups, whereas the decrease in harmful bacteria was significant ( P < 0.05) in T2 and T3. The immune parameters (THC, PO and RB activity) and clearance efficiency significantly improved ( P < 0.05) in T3 with concurrent decrease ( P < 0.05) in cumulative mortality against Aeromonas hydrophila challenge. However, water quality did not improved ( P > 0.05) in any of the treatment groups. The results indicate that Lactobacillus plantarum at a minimum concentration of 10 9 cfu L −1 could be used as water additive to confer its probiotic effect in prawn, Macrobrachium rosenbergii . Moreover, future studies with higher probiotic concentrations should be conducted for its efficient commercial scale field application.