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Pathogenicity of Aeromonas hydrophila in High-value Native Pangasius Catfish, Pangasius nasutus (Bleeker).
- Source :
-
Pertanika Journal of Tropical Agricultural Science . May2023, Vol. 46 Issue 2, p373-384. 12p. - Publication Year :
- 2023
-
Abstract
- Pangasius catfish, Pangasius nasutus, is a promising candidate for aquaculture due to its high market value. However, the presence of pathogenic bacteria in Aeromonas hydrophila is a major concern in P. nasutus farming in this country. This study determines the pathogenicity of A. hydrophila in P. nasutus. A total of 80 P. nasutus juveniles were intraperitoneally injected with 0, 10³, 105, and 107 CFU mL-1 of A. hydrophila and monitored until 240 hr. The infected moribund fish's kidneys, livers, and spleens were collected for histopathological analysis. The LD50-240hr value was found at 0.8 × 104 CFU/ml of A. hydrophila. The percentage of mortality in 0, 10³, 105, and 107 CFU/ml infected groups were found to be at 0, 40, 60, and 90%, respectively. The infected fish showed congestion at the base of the fin, ascites, enlarged gall bladder, and swollen spleen. It is the earliest report on A. hydrophila's pathogenicity in high-value native fish, P. nasutus. [ABSTRACT FROM AUTHOR]
- Subjects :
- *AEROMONAS hydrophila
*PANGASIUS
*CATFISHES
*NATIVE fishes
*GALLBLADDER
*MARKET value
Subjects
Details
- Language :
- English
- ISSN :
- 15113701
- Volume :
- 46
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Pertanika Journal of Tropical Agricultural Science
- Publication Type :
- Academic Journal
- Accession number :
- 164595663
- Full Text :
- https://doi.org/10.47836/pjtas.46.2.01