Histopathological changes in giant freshwater prawn Macrobrachium rosenbergii (de Man 1879) fed with probiotic Bacillus licheniformis upon challenge with Vibrio alginolyticus

Ranjit Kumar, N and Raman, Ram Prakash and Dash, Gyanaranjan and Sreenath, K R and Lalitha, K V and Prasad, Mukteswar (2018) Histopathological changes in giant freshwater prawn Macrobrachium rosenbergii (de Man 1879) fed with probiotic Bacillus licheniformis upon challenge with Vibrio alginolyticus. Aquaculture Research, 49 (1). pp. 81-92.

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    Abstract

    The effect of dietary supplementation of probiotic bacterium Bacillus licheniformis on the histopathological changes in Macrobrachium rosenbergii juveniles (4.0 � 0.02 g) challenged with known pathogenic strain of Vibrio alginolyticus are reported. Two isocaloric basal diets supplemented with probiotic bacteria B. licheniformis (1.0 9 109 cfu/g feed) and other without probiotic supplementation were fed to the M. rosenbergii juveniles for 45 days. The histological observations revealed no significant changes in the hepatopancreas and gut tissues of both the experimental and the control groups which indicate that the present bacterium is a safe candidate probiont for the host. Prawns were challenged with V. alginolyticus after 45 days of feeding with probiotic diet. The histopathological studies of the hepatopancreas revealed that M. rosenbergii fed with probiotic-supplemented diet showed less changes as compared to the prawns fed with control diet on second and fourth day of post-experimental challenge with V. alginolyticus. Histopathological observations revealed that the gills of the prawns fed with control diet were severely affected in comparison to the prawns fed with probiotic-supplemented diet after challenging with V. alginolyticus. Results from this study revealed the improved protection by dietary incorporation of B. licheniformis in reducing the histopathological manifestations due to V. alginolyticus infection in freshwater prawn.

    Item Type: Article
    Uncontrolled Keywords: Bacillus licheniformis, histopathology, Macrobrachium rosenbergii, probiotic
    Subjects: Fish Biotechnology > Bioactive compound
    Fish Diseases
    Divisions: CMFRI-Veraval
    Depositing User: Arun Surendran
    Date Deposited: 14 Feb 2018 07:16
    Last Modified: 14 Feb 2018 07:16
    URI: http://eprints.cmfri.org.in/id/eprint/12629

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