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Administration of hot‐water extract of Padina boergesenii via immersion route to enhance haemolymph‐immune responses of Fenneropenaeus indicus (Edwards)
Author(s) -
Ghaednia Babak,
Mehrabi Mohammad Reza,
Mirbakhsh Maryam,
Yeganeh Vahid,
Nasab Aghil Dashtian
Publication year - 2011
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.2010.02723.x
Subject(s) - hemolymph , shrimp , biology , vibrio harveyi , seawater , immunostimulant , food science , decapoda , microbiology and biotechnology , immune system , antibacterial activity , vibrio alginolyticus , zoology , vibrio , crustacean , bacteria , fishery , botany , ecology , immunology , genetics
Various polysaccharides extract from marine algae to increase the non‐specific immune system in crustacean. In this study, effects of hot‐water extract on total haemocyte count, total plasma protein, Phagocytic activity, bacterial clearance efficiency and bactericidal activity while the shrimp Fenneropenaeus indicus (10.12±2.18 g) were immersed in seawater (40 g L −1 and 25±0.8 °C) containing hot‐water extract of brown algae Padina boergesenii at 100, 300 and 500 mg L −1 for 1–4 h, were investigated. These parameters increased significantly ( P <0.05) when the shrimp were immersed in seawater containing hot‐water extract at 100 mg L −1 after 3 h and 300 and 500 mg L −1 after 2 h. Fenneropenaeus indicus that were immersed in hot‐water extract at 300 and 500 mg L −1 had significantly increased phagocytic activity and increased clearance efficiency to Vibrio harveyi after 2 h. But bactericidal activity increased after 1 h immersed in 500 mg L −1 concentration.