Raes, Ain Mirzani Azni (2018) The clinicopathology evaluation of Oreochromis sp. post-Streptococcus iniae and Aeromonas hydrophila challenge. [Project Paper] (Submitted)
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Abstract
The study evaluated the clinical signs, pathological changes in brain, kidney and gills of Red hybrid tilapia (Oreochromis sp.) post-Streptococcus iniae and Aeromonas hydrophila challenge. A total of 54 tilapia fingerlings were divided into three groups and infected with ×1010 CFU/ml of Group A; Streptococcus iniae while group B; Aeromonas hydrophila and Group C; Control respectively. Sampling was done every 12 hours intervals within 48 hours to be evaluated for post-mortem lesion macroscopically and microscopically. The clinical signs shown by group A were motionless; more at the base of the tank, long white faeces and anorexia while in group B showed air gulping, death and anorexia. Macroscopically, both groups developed congestion in kidney, gills, brain and fin haemorrhage. Additionally, there was exophthalmia observed in group A while haemorrhagic operculum observed in group B. Histopathological changes evaluated were infiltration of inflammatory cells and congestion in brain, kidney and gills with additional of vacuolation in the brain, degeneration of tubules in kidney and secondary lamellar changes in gills, where severity observed was more in group B. The results verified that fish infected with S. iniae and A. hydrophila may develop some similar clinical signs and pathological changes but generally more severe in A. hydrophila infection.
| Item Type: | Project Paper |
|---|---|
| Faculty: | Faculty of Veterinary Medicine |
| Depositing User: | Ms. Nordeena Abdul Aziz |
| Date Deposited: | 03 Mar 2023 02:56 |
| Last Modified: | 03 Mar 2023 02:56 |
| URI: | http://psaspb.upm.edu.my/id/eprint/805 |
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