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Evaluation of Lactobacillus plantarum as feed supplement on host associated microflora, growth, feed efficiency, carcass biochemical composition and immune response of giant freshwater prawn, Macrobrachium rosenbergii (de Man, 1879)

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Title Evaluation of Lactobacillus plantarum as feed supplement on host
associated microflora, growth, feed efficiency, carcass biochemical
composition and immune response of giant freshwater prawn,
Macrobrachium rosenbergii (de Man, 1879)
Not Available
 
Creator Pradeep,M A
Makesh,M
Pani Prasad,K
Raman,Ram Prakash
Dash,Gyanaranjan
Dash,Swatipriyanka Sen
 
Subject Lactobacillus plantarum
Feed supplement
Macrobrachium rosenbergii
Growth performance
Immune parameters
 
Description Not Available
The present experimentwas conducted to evaluate probiotic effect of Lactobacillus plantarum on giant freshwater
prawn, Macrobrachium rosenbergii. A 90-day feeding trial was conducted by feeding prawn juveniles (mean
weight ± SE: 0.54 ± 0.03 g) with three experimental diets prepared by supplementing basal diet (Crude
protein: 38%; Gross energy: 387 kcal 100 g−1) with different concentrations of probiotics bacteria viz. T1
(107 cfu g−1 diet), T2 (108 cfu g−1 diet), T3 (109 cfu g−1 diet) and control diet (unsupplemented diet). In the
present study, growth parameters viz. WG% and SGR and feed utilization parameters viz. FCE, FCR and PER increased
significantly (P b 0.05) in all the experimental groups compared to the control whereas, the improvement
observed between T2 and T3 was not significant (P N 0.05). The carcass protein content increased
significantly (P b 0.05) with concurrent decrease (P b 0.05) in carbohydrate content when prawn juveniles
were fed with diet supplemented with higher dose of probiotic bacteria (T3). The Lactobacillus sp. count
increased significantly (P b 0.05) in the gastro-intestinal tract with concurrent decrease (P b 0.05) in gram
negative bacteria count in all the experimental groups compared to the control whereas, the improvement observed
between T2 and T3 was not significant (P N 0.05). However, Lactobacillus sp. count decreased significantly
(P b 0.05) within 7 days after switching to basal diet which indicates that probiotic bacteria failed to sustain its
population in the digestive tract of prawn. The immune parameters viz. total hemocyte count (THC), phenol oxidase
(PO) activity, respiratory burst (RB) activity and clearance efficiency significantly improved (P b 0.05)with
concurrent decrease (P b 0.05) in cumulative mortality against A. hydrophila challenge in all the experimental
groups except for T1, where PO and RB activity did not improve significantly (P N 0.05) compared to the control.
Among the experimental groups, though the improvement in immune parameters was highest (P b 0.05) in T3,
no significant difference (P N 0.05) was observed between T2 and T3. The results obtained fromthe present study
indicate that L. plantarum can be used to improve the host associated microflora, growth, feed efficiency, carcass
biochemical composition and immune response of M. rosenbergii in the laboratory condition.Moreover, though a
dose response was observed in the present study, the improvement was not significant between T2 and T3 and
therefore, studies with further higher concentration should be conducted for its efficient commercial level field
application.
Not Available
 
Date 2021-09-17T04:07:10Z
2021-09-17T04:07:10Z
2014
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/63500
 
Language English
 
Relation Not Available