Pathological investigations on the diseases of rainbow trout (oncorhynchus mykiss w., 1792) in aydın and muğla regions
<b>Aim:</b> The aims were to determine pathological findings in diseased fish in rainbow trout farms and to emphasize the importance of there findings in the diagnosis of fish diseases.<p> <b>Material and Method:</b> A total of 150 diseased fish obtained from the fish f...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Selcuk University Press
|
| Series: | Eurasian Journal of Veterinary Sciences |
| Subjects: | |
| Online Access: | http://eurasianjvetsci.org/pdf.php3?id=547 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | <b>Aim:</b> The aims were to determine pathological findings in
diseased fish in rainbow trout farms and to emphasize the
importance of there findings in the diagnosis of fish diseases.<p>
<b>Material and Method:</b> A total of 150 diseased fish obtained
from the fish farms in Aydin and Muğla regions were examined.
Following the macroscopic examinations, tissue samples
were processed routinely and parafin embedded. The
tissiues were sectioned at 5 μm, stained with hematoxylin
and eosin and then examined by light microscopy.<p>
<b>Results:</b> Macroscopically, erosive and ulcerative lesions on
the surface of the skin, exophthalmos and hemorrhages in
the eyes, hyperemia and hemorrhage in the gills and hemorrhage
and discoloration on the liver were observed. Microscopically,
edema, hyperemia, telangiectasia, hemorrhage,
hyperplasia parasites (Trichodina sp., Ichthyophthirius multifiliis)
were determined in the gills. In the heart, epicarditis
in 38 fish and myocarditis in 13 fish was seen. Lesions of the
liver were degeneration, fatty changes and lymphoid cells
infiltrations. The kidney showed hemorrhage, hyaline droplets
in the epithelium of the proximal tubuli and increases
in melanomacrophage centers. Focal necrosis in the spleen
was seen in only 4 fishes.<p>
<b>Conclusion:</b> The results revealed that multidisciplinary
studies including histopathologic examinations were very
important for accurate diagnosis and effective treatment in
the diagnosis of fish diseases. |
|---|---|
| ISSN: | 1309-6958 2146-1953 |