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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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        Abstract - Issue Jul 2010, 31 (4)                                                                                                             Back



Abstract _25

Infection and immunization trials of Asian seabass (Lates calcarifer)

against fish pathogen Vibrio anguillarum

 

S. Kumaran, B. Deivasigamani*, K.M. Alagappan and M. Sakthivel

CAS in Marine Biology, Annamalai University, Parangipettai - 608 502, India

(Received: April 02, 2009; Revised received: August 09, 2009; Accepted: August 26, 2009)

 

Abstract:? Vibriosis is one of the most prevalent fish diseases caused by bacteria belonging to the genus Vibrio sp. Fish disease will be controlled by proper vaccination trials and maintenance of fish form. Pathogenicity for Asian seabass (Lates calcarifer) against V. anguillarum results in necrosis and haemorrhagic areas near the base of fins, exopthalmia and ulcers on the skin surface. Around 50, 100, 200 ?l of formalin killed bacterial cells were injected (Intraperitoneal) to three different size (5-10, 20-30, 35-50g) of seabass fishes respectively and control sere as saline were maintained separately. The Relative Percentage Survival (RPS) for vaccinated fishes was 60, 75, and 62.5 respectively and the vaccinations for 20-30 g fishes stay alive. These results stated that the vaccination for fishes with 20-30 g size may fabricate good immune response.

Key words: Seabass, Vibrio, Antigen, Immunization, Fish

??????? PDF of full length paper is available online

 

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