Studies On Aeromonas Hydrophila Isolated From Epizootic Ulcerative Syndrome (Eus) Positive Fish In Malaysia
Kulathilaka, H . A . Mahinda (1993) Studies On Aeromonas Hydrophila Isolated From Epizootic Ulcerative Syndrome (Eus) Positive Fish In Malaysia. Masters thesis, Universiti Pertanian Malaysia.
The present study indicates that the only portal of entry of A . hydrophila serovar I isolate V which induces EUS - l ike lesions in C. batrach us is the intramuscular injection and the effective dose is 6 .5 X 1 0 6 CFU / fish . The lesions do not develop into putrefied necrotic ulcers but heals gradually within 14 - 18 days of initial injection . Immersion exposure and oral administration of A . hydrophila serovar I isolate V were incapable of inducing EUS - like lesions in C . batrachus .Intramuscular injection of A . hydrophila serovar I strain V cause severe pathological changes in C . batrachus , only at the site of injection and did not produce systemic infection . Clarias batrachus mounts a strong inflammatory response against A.hydrophila following intramuscular infection and is capable of eliminating bacteria from the infected tissue s and efficient in fast wound healing and repair of the dermal lesions.
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