The study of histopathological damage in heart and bulbus arteriosus in rainbow trout
This study investigated the pathological changes of heart and bulbus artrius of rainbow trout breeders in several group of ages and density. The aim of study was to consider the process and the intensity of the heart and bulbus arteriosus damages in accordance to gender, age and stocking density of trout in three fish culture center (Zarghezel, Niyak in Haraz Region,Mazandaran and Espiran in Tabriz city environs). In field research, the all records the feed and feeding type, rate of mortality, stocking density of spawners and per spawners fishes, water chemical and physical specification was screened. Stocking density was considered as the most important stressor. 10 fish specimens from 7 weight groups (less than 90g, 90 to 300g, 300 to 500 g, 500 to 1000g, 1 to 3 kg, 3 to 5 kg, over 5 kg), totally 210 specimens were sampled and heart and bulbus arteriosus were taken. Samples were fixed in 10 % formalin and transferred to pathology laboratory of veterinary faculty of Tabriz Azad University. Histopathological slides and H&E staining were prepared from these samples. In total, 47 male and 73 female samples showed cardiovascular injury (29 cases in extensive system, 41 cases in semi intensive system, 50 cases in intensive system). The most important was damages, edema and hyperemia in spongy layer of atrium and ventricle muscles, but degeneration the muscle fibers, moderate edema , minor vascular damage. Hemorrhage as the effect of severs vascular damage, thrombus, sever inflammation, sever degeneration in muscle fiber, necrosis and fibrose were further pathological changed. The results of this study showed that the severity of damage increased by increasing the age (weight) of fishes. This situation was seen in all three culturing system (extensive system, semi intensive system, recirculation system). Histopathological changes is obviously seen in samples over 500g, therefore the damages were found to be important (P<0.05). Pathological effects and its severity in recirculation system was significantly high (P<0.05). Comparison with two other culturing system, histopathological changed in heart and bulbus arterius between male and female was significantly different.
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Islamic Azad University, Science and Research Branch, Tehran, Fisheries
2009
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Online Access: | http://hdl.handle.net/1834/35770 |
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dig-aquadocs-1834-357702021-07-11T06:06:45Z The study of histopathological damage in heart and bulbus arteriosus in rainbow trout Arabzadeh, Payam Aquaculture Biology Fisheries This study investigated the pathological changes of heart and bulbus artrius of rainbow trout breeders in several group of ages and density. The aim of study was to consider the process and the intensity of the heart and bulbus arteriosus damages in accordance to gender, age and stocking density of trout in three fish culture center (Zarghezel, Niyak in Haraz Region,Mazandaran and Espiran in Tabriz city environs). In field research, the all records the feed and feeding type, rate of mortality, stocking density of spawners and per spawners fishes, water chemical and physical specification was screened. Stocking density was considered as the most important stressor. 10 fish specimens from 7 weight groups (less than 90g, 90 to 300g, 300 to 500 g, 500 to 1000g, 1 to 3 kg, 3 to 5 kg, over 5 kg), totally 210 specimens were sampled and heart and bulbus arteriosus were taken. Samples were fixed in 10 % formalin and transferred to pathology laboratory of veterinary faculty of Tabriz Azad University. Histopathological slides and H&E staining were prepared from these samples. In total, 47 male and 73 female samples showed cardiovascular injury (29 cases in extensive system, 41 cases in semi intensive system, 50 cases in intensive system). The most important was damages, edema and hyperemia in spongy layer of atrium and ventricle muscles, but degeneration the muscle fibers, moderate edema , minor vascular damage. Hemorrhage as the effect of severs vascular damage, thrombus, sever inflammation, sever degeneration in muscle fiber, necrosis and fibrose were further pathological changed. The results of this study showed that the severity of damage increased by increasing the age (weight) of fishes. This situation was seen in all three culturing system (extensive system, semi intensive system, recirculation system). Histopathological changes is obviously seen in samples over 500g, therefore the damages were found to be important (P<0.05). Pathological effects and its severity in recirculation system was significantly high (P<0.05). Comparison with two other culturing system, histopathological changed in heart and bulbus arterius between male and female was significantly different. PhD Advisors: Behyar, Jalali; Darush, Mohajeri; Counsellors: Iraj, Sohrabi Haghdost 2021-06-24T17:52:37Z 2021-06-24T17:52:37Z 2009 thesis http://hdl.handle.net/1834/35770 fa http://www.srbiau.ac.ir/ application/pdf application/pdf 81 Islamic Azad University, Science and Research Branch, Tehran, Fisheries http://aquaticcommons.org/id/eprint/20908 17408 2016-07-15 08:59:35 20908 Islamic Azad University, Science and Research Branch, Tehran |
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Aquaculture Biology Fisheries Aquaculture Biology Fisheries Arabzadeh, Payam The study of histopathological damage in heart and bulbus arteriosus in rainbow trout |
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This study investigated the pathological changes of heart and bulbus artrius of rainbow trout breeders in several group of ages and density. The aim of study was to consider the process and the intensity of the heart and bulbus arteriosus damages in accordance to gender, age and stocking density of trout in three fish culture center (Zarghezel, Niyak in Haraz Region,Mazandaran and Espiran in Tabriz city environs). In field research, the all records the feed and feeding type, rate of mortality, stocking density of spawners and per spawners fishes, water chemical and physical specification was screened. Stocking density was considered as the most important stressor. 10 fish specimens from 7 weight groups (less than 90g, 90 to 300g, 300 to 500 g, 500 to 1000g, 1 to 3 kg, 3 to 5 kg, over 5 kg), totally 210 specimens were sampled and heart and bulbus arteriosus were taken. Samples were fixed in 10 % formalin and transferred to pathology laboratory of veterinary faculty of Tabriz Azad University. Histopathological slides and H&E staining were prepared from these samples. In total, 47 male and 73 female samples showed cardiovascular injury (29 cases in extensive system, 41 cases in semi intensive system, 50 cases in intensive system). The most important was damages, edema and hyperemia in spongy layer of atrium and ventricle muscles, but degeneration the muscle fibers, moderate edema , minor vascular damage. Hemorrhage as the effect of severs vascular damage, thrombus, sever inflammation, sever degeneration in muscle fiber, necrosis and fibrose were further pathological changed. The results of this study showed that the severity of damage increased by increasing the age (weight) of fishes. This situation was seen in all three culturing system (extensive system, semi intensive system, recirculation system). Histopathological changes is obviously seen in samples over 500g, therefore the damages were found to be important (P<0.05). Pathological effects and its severity in recirculation system was significantly high (P<0.05). Comparison with two other culturing system, histopathological changed in heart and bulbus arterius between male and female was significantly different. |
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thesis |
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Aquaculture Biology Fisheries |
author |
Arabzadeh, Payam |
author_facet |
Arabzadeh, Payam |
author_sort |
Arabzadeh, Payam |
title |
The study of histopathological damage in heart and bulbus arteriosus in rainbow trout |
title_short |
The study of histopathological damage in heart and bulbus arteriosus in rainbow trout |
title_full |
The study of histopathological damage in heart and bulbus arteriosus in rainbow trout |
title_fullStr |
The study of histopathological damage in heart and bulbus arteriosus in rainbow trout |
title_full_unstemmed |
The study of histopathological damage in heart and bulbus arteriosus in rainbow trout |
title_sort |
study of histopathological damage in heart and bulbus arteriosus in rainbow trout |
publisher |
Islamic Azad University, Science and Research Branch, Tehran, Fisheries |
publishDate |
2009 |
url |
http://hdl.handle.net/1834/35770 |
work_keys_str_mv |
AT arabzadehpayam thestudyofhistopathologicaldamageinheartandbulbusarteriosusinrainbowtrout AT arabzadehpayam studyofhistopathologicaldamageinheartandbulbusarteriosusinrainbowtrout |
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1756079402596171776 |