An experimental study to evaluate pathogenicity of Yersinia ruckeri isolated from rainbow trout (Oncorhynchus mykiss) in Caspian trout (Salmo caspius)
The main objective of this study was to evaluate the pathogenicity of isolated Yersinia ruckeri from Caspian trout. Y. ruckeri specimens were isolated from infected rainbow trout farms located in north of Iran. The identification was confirmed by biochemical tests and 16s rRNA gene sequencing. Th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Iranian Fisheries Research Organization
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/87832/ http://psasir.upm.edu.my/id/eprint/87832/1/ABSTRACT.pdf |
| _version_ | 1848860509288267776 |
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| author | M., Adel Md Yasin, Ina Salwany S., Yeganeh I., Karimi A., Zafariian |
| author_facet | M., Adel Md Yasin, Ina Salwany S., Yeganeh I., Karimi A., Zafariian |
| author_sort | M., Adel |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The main objective of this study was to evaluate the pathogenicity of isolated Yersinia ruckeri from Caspian trout. Y. ruckeri specimens were isolated from infected rainbow trout farms located in north of Iran. The identification was confirmed by biochemical tests and 16s rRNA gene sequencing. The pathogenicity test was carried out to determine the virulence of the Y. ruckeri by IP injection, and histopathological and hemato-biochemical changes were evaluated pre and post challenge. Based on the results, LD50 were calculated as 1×105 CFU ml-1, while 1×107 CFU ml-1 caused 100% mortality after 10 days in the experimental groups. The main histopathological changes were seen in liver, kidney, spleen and intestine, including erosion and necrosis, infiltration of inflammatory cell, hyperplasia and catarrhal enteritis in the infected organs. Also, a significant decrease in glucose, RBC counts, Hb values and HCT percentage and significant increase in the WBC counts, neutrophils percentage, AST, ALP and LDH values were observed in infected fish after challenging. Finally, Caspian trout is susceptible to Yersiniosis and can play important role in transmission of Y. ruckeri to cultured and wild fish. |
| first_indexed | 2025-11-15T12:46:22Z |
| format | Article |
| id | upm-87832 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:46:22Z |
| publishDate | 2020 |
| publisher | Iranian Fisheries Research Organization |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-878322022-06-14T07:51:08Z http://psasir.upm.edu.my/id/eprint/87832/ An experimental study to evaluate pathogenicity of Yersinia ruckeri isolated from rainbow trout (Oncorhynchus mykiss) in Caspian trout (Salmo caspius) M., Adel Md Yasin, Ina Salwany S., Yeganeh I., Karimi A., Zafariian The main objective of this study was to evaluate the pathogenicity of isolated Yersinia ruckeri from Caspian trout. Y. ruckeri specimens were isolated from infected rainbow trout farms located in north of Iran. The identification was confirmed by biochemical tests and 16s rRNA gene sequencing. The pathogenicity test was carried out to determine the virulence of the Y. ruckeri by IP injection, and histopathological and hemato-biochemical changes were evaluated pre and post challenge. Based on the results, LD50 were calculated as 1×105 CFU ml-1, while 1×107 CFU ml-1 caused 100% mortality after 10 days in the experimental groups. The main histopathological changes were seen in liver, kidney, spleen and intestine, including erosion and necrosis, infiltration of inflammatory cell, hyperplasia and catarrhal enteritis in the infected organs. Also, a significant decrease in glucose, RBC counts, Hb values and HCT percentage and significant increase in the WBC counts, neutrophils percentage, AST, ALP and LDH values were observed in infected fish after challenging. Finally, Caspian trout is susceptible to Yersiniosis and can play important role in transmission of Y. ruckeri to cultured and wild fish. Iranian Fisheries Research Organization 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/87832/1/ABSTRACT.pdf M., Adel and Md Yasin, Ina Salwany and S., Yeganeh and I., Karimi and A., Zafariian (2020) An experimental study to evaluate pathogenicity of Yersinia ruckeri isolated from rainbow trout (Oncorhynchus mykiss) in Caspian trout (Salmo caspius). Iranian Journal of Fisheries Sciences, 19 (5). 2409 - 2421. ISSN 1562-2916 http://jifro.ir/browse.php?a_id=2295&sid=1&slc_lang=en 10.22092/ijfs.2020.122408 |
| spellingShingle | M., Adel Md Yasin, Ina Salwany S., Yeganeh I., Karimi A., Zafariian An experimental study to evaluate pathogenicity of Yersinia ruckeri isolated from rainbow trout (Oncorhynchus mykiss) in Caspian trout (Salmo caspius) |
| title | An experimental study to evaluate pathogenicity of Yersinia ruckeri isolated from rainbow trout (Oncorhynchus mykiss) in Caspian trout (Salmo caspius) |
| title_full | An experimental study to evaluate pathogenicity of Yersinia ruckeri isolated from rainbow trout (Oncorhynchus mykiss) in Caspian trout (Salmo caspius) |
| title_fullStr | An experimental study to evaluate pathogenicity of Yersinia ruckeri isolated from rainbow trout (Oncorhynchus mykiss) in Caspian trout (Salmo caspius) |
| title_full_unstemmed | An experimental study to evaluate pathogenicity of Yersinia ruckeri isolated from rainbow trout (Oncorhynchus mykiss) in Caspian trout (Salmo caspius) |
| title_short | An experimental study to evaluate pathogenicity of Yersinia ruckeri isolated from rainbow trout (Oncorhynchus mykiss) in Caspian trout (Salmo caspius) |
| title_sort | experimental study to evaluate pathogenicity of yersinia ruckeri isolated from rainbow trout (oncorhynchus mykiss) in caspian trout (salmo caspius) |
| url | http://psasir.upm.edu.my/id/eprint/87832/ http://psasir.upm.edu.my/id/eprint/87832/ http://psasir.upm.edu.my/id/eprint/87832/ http://psasir.upm.edu.my/id/eprint/87832/1/ABSTRACT.pdf |