Investigation of health status of juvenile exotic carps from various farming conditions of Bangladesh
Health status of juvenile silver carp, Hypophthalmichthys molitrix and silver barb,Barbodes gonionotus were investigated in three fish farms following different farmingconditions through clinical and histopathological examinations for a period of ninemonths. Here the fishes and water quality parameters were sampled on monthly basis.Among the water quality parameters, water temperature has a distinct effect on fishhealth observed during the winter season. Different clinical signs like scale loss, dermallesion, fin erosion were observed, while histopathologically necrosis, pyknosis,inflammation, haemorrhage, hypertrophy, vacuoles, missing of gill lamellae andclubbing were evidenced in the investigated fishes. The study showed that pathologicalsymptoms were mainly increased during the winter season and H. molitrix exhibitedsevere pathological symptoms in compare to B. gonionotus during the investigation. Itwas also found that fishes of BAU farm was comparatively in the best condition, while,the fishes of other farms were severely affected during the experimental observations. Inaddition, disease like Epizootic Ulcerative Syndrome (EUS), protozoan disease andsuspected bacterial colonies were clearly evidenced in the fishes of Government and NGO fish farms.
| Main Authors: | , , , |
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| Format: | article biblioteca |
| Language: | English |
| Published: |
2008
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| Subjects: | Biology, Fisheries, Fish disease, Hypophthabnichthys molitrix, Barbodes gonionotus, Histopathology, |
| Online Access: | http://hdl.handle.net/1834/33181 |
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