Immunological and biochemical responses in Asian seabass fingerlings (Lates calcarifer) vaccinated with vibrio anguillarum bacterin [electronic resource].

Includes reference

Groups of apparently healthy Asian seabass fingerlings (Lates calcarijer) weighing from 20 to 30 g were immunized against vibriosis by a vaccine in the form of fOnilalin killed bacteria of Vibrio anguillarum that originated from diseased fish. This immunization was administered by three different routes which were bath immersion, orally (by feeding) or intraperitoneal injection (IP). Immunization process was followed with booster dose by the same routes 2 weeks after the 1st dose. The efficacy of this vaccination was evaluated based on immune responses ( specific and non specific ) and protection against bacterial challenge performed by IP inoculation with 0.1 ml of bacterial. suspension of live virulent V.anguillarum at concentration of 1.2 x 108 c 1m!. Antibody titres (as specific immunity), 135 phagocytic activity phagocytic index and serum bactericidal activity (as non-specific immunity) , mortality % and relative percentage survival (RPS) as challenge indicators against V.anguillarum were determined. Also, serum: total protein, albumin and globulin contents and albumin I globulin ratio (A I G) were estimated

Summary in arabic.

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