Pathogenicity of EUS Associated Aeromonas hydrophila, Artificially Injected to Channa striatus (Bloch)

ISSN: 0973-7510

E-ISSN: 2581-690X

Pathogenicity of EUS Associated Aeromonas hydrophila, Artificially Injected to Channa striatus (Bloch)

S.A. Mastan

P.G. Department of Biotechnology, D.N.R College, P.G Courses and Research Centre, Bhimavaram- 534 202, India.

J Pure Appl Microbiol. 2008;2(2):555-558

Received: 14/05/2008 | Accepted: 21/08/2008 | Published: 31/10/2008

Abstract

Experiments have been conducted with A. hydrophila, which was isolated from EUS affected Mystus cavasius and injected to Channa striatus intraperitoneally and observations were made at regular intervals for 96hrs to study the disease progress. Visible clinical and behavioural symptoms were noticed. Moribund and dead fish were autopsied to observe pathological changes in different organs. The L_D50 value obtained was 2.98×10³ cells/ml. The statistical analysis such as regression equation, chi-square, LogL_D50 ± standard deviation (SD) and fiducial limits (FL) of the data were recorded as Y= -3.070 + 2.322x, 4.027, 3.4742 ± 0.0651, 2.22 ×10³ and 4.00 x 10³ cells/ml, respectively. The chi-square value was found to be significant at PÐ 0.05.

Keywords

Pathogenicity, EUS Aeromonas hydrophila, Channa striatus

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