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Nature and Science

.: Home > Nature and Science > 2010 > Volume 8 Number 2 > Noor El Deen Ahmed Ismail(1), Nagwa Sad. Atta I (2 and Abd E Aziz ,Mohamed .Ahmed(3)

Oral Vaccination of Nile Tilapia (Orechromis niloticus) Against Motile Aeromonas Septicaemia

Noor El Deen Ahmed Ismail(1), Nagwa Sad. Atta I (2 and Abd E Aziz ,Mohamed .Ahmed(3)
1) Dept. of Hydrobiology , National Research Centre(, N.R.C). (2) Dept. of Microbiology, N.R.C. 3) Dept. of Fish Diseases, Fac.of Vet Med. Cairo. dr_ahmednoor2002@yahoo.com
Abstract :

Abstract: The present study was planned for preparation of formalin inactivated wet-packed whole cells
Aeromonas hydrophila bacterin for oral vaccination. The humeral antibody response of vaccinated Nile
tilapia (Orechromis niloticus (O. niloticus) was determined by micro-agglutination test. Moreover efficacy
of the prepared bacterin against infection with Aeromonas hydrophila was detection and calculated as a
relative level of protection. Nile tilapia (O. niloticus) immunized orally with formalin-inactivated
Aeromonas hydrophila .wet-packed while cells had low level of antibody titer reached 2 and 3 by log2 at
first and fourth week post-immunization respectively while Nile tilapia (O. niloticus) fed on minced meat
without vaccine had antibody titer reached 1 by log 2 throughout the experimental period . The relative level
of protection among Nile tilapia (O. niloticus) immunized orally were 86.8. [Nature and Science
2010;8(2):21-26]. (ISSN: 1545-0740).

Keywords :
Aeromonas hydrophila - bacterin -vaccination- humeral antibody- Nile tilapia.

Date Deposited : 12 Jan 2011 15:34

Last Modified : 12 Jan 2011 15:34

Official URL: http://www.sciencepub.net/nature/ns0802/

Volume 8, Number 2, February 2010 , ISSN 1545-0740

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