Effect of Echinacea purpurea and Astragalus glycyphyllos on immune responses of rainbow trout (O. mykiss) and resistance to sterptococcosis
Nowadays, medical plants extract is used in aquaculture industry to enhance growth, immune system and fish resistance to different pathogens. In this study, some non-specific immune responses, hematology and biochemical parameters in rainbow trout juveniles (16 gr mean weight) and their resistance to Streptococcus iniae were evaluated following oral administration of Echinacea purpurea and Astragalus sp. extract. Three concentrations (0.5, 1 and 1.5 gr/kg of feed) of Echinacea purpurea and three concentrations (2, 3 and 5 gr/kg of feed) of Astragalus sp extract and control group were used for 60 days. Parameters evaluated included: levels of C4, C3 (complement components), free oxygen radicals (respiratory burst), Lysozyme, numbers of lymphocytes, monocytes and neutrophils. In the end, the relative survival rate (RSR) of fish was evaluated against S. iniae. The results showed that the levels of C3, lysozyme, oxygen free radicals, the number of neutrophils and lymphocytes in the experiment groups (the highest dose) compared to control group were increased significantly (p <0/05). While, the values of C4 and number of monocytes compared to the control group were not significantly different (p> 0.05). The relative survival rates of fish following challenge with Streptococcus iniae, were 91/11, 93/33 and 44/44 percent in experiments (Echinacea purpurea and Astragalus sp.) and control groups, respectively. In conclusion, it may be state that Echinacea purpurea and Astragalus sp. extracts enhance the non-specific immune system and fish resistance against Streptococcusis, and it seems it can be used as immunostimulant in feed.
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Format: | monograph biblioteca |
Language: | Persian |
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Iranian Fisheries Science Research Institute
2014
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Subjects: | Aquaculture, Iran, Echinacea purpurea, Astragalus sp, Rainbow trout, Streptococcusis, Immune system, Astragalus glycyphyllos, O.mykiss, Growth, Juvenile, Lysozyme, Survival rate, |
Online Access: | http://hdl.handle.net/1834/39844 |
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dig-aquadocs-1834-398442021-07-16T02:52:10Z Effect of Echinacea purpurea and Astragalus glycyphyllos on immune responses of rainbow trout (O. mykiss) and resistance to sterptococcosis Pourgholam, Reza Sharif Rouhani, M. Safari, R. Binaei, M. Bankehsaz, Z. Taghavi, M.J. Najafian, R. Sepahdari, A. Yaghobzadeh, Z. Saeidi, A.A. Aquaculture Iran Echinacea purpurea Astragalus sp Rainbow trout Streptococcusis Immune system Astragalus glycyphyllos O.mykiss Aquaculture Growth Juvenile Lysozyme Survival rate Nowadays, medical plants extract is used in aquaculture industry to enhance growth, immune system and fish resistance to different pathogens. In this study, some non-specific immune responses, hematology and biochemical parameters in rainbow trout juveniles (16 gr mean weight) and their resistance to Streptococcus iniae were evaluated following oral administration of Echinacea purpurea and Astragalus sp. extract. Three concentrations (0.5, 1 and 1.5 gr/kg of feed) of Echinacea purpurea and three concentrations (2, 3 and 5 gr/kg of feed) of Astragalus sp extract and control group were used for 60 days. Parameters evaluated included: levels of C4, C3 (complement components), free oxygen radicals (respiratory burst), Lysozyme, numbers of lymphocytes, monocytes and neutrophils. In the end, the relative survival rate (RSR) of fish was evaluated against S. iniae. The results showed that the levels of C3, lysozyme, oxygen free radicals, the number of neutrophils and lymphocytes in the experiment groups (the highest dose) compared to control group were increased significantly (p <0/05). While, the values of C4 and number of monocytes compared to the control group were not significantly different (p> 0.05). The relative survival rates of fish following challenge with Streptococcus iniae, were 91/11, 93/33 and 44/44 percent in experiments (Echinacea purpurea and Astragalus sp.) and control groups, respectively. In conclusion, it may be state that Echinacea purpurea and Astragalus sp. extracts enhance the non-specific immune system and fish resistance against Streptococcusis, and it seems it can be used as immunostimulant in feed. 2021-06-24T18:28:37Z 2021-06-24T18:28:37Z 2014 monograph 43364 http://hdl.handle.net/1834/39844 fa http://kmsu.ac.ir/ application/pdf application/pdf 106 Iranian Fisheries Science Research Institute Tehran, Iran http://aquaticcommons.org/id/eprint/25451 18721 2018-09-23 17:53:51 25451 Iranian Fisheries Science Research Institute |
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Aquaculture Iran Echinacea purpurea Astragalus sp Rainbow trout Streptococcusis Immune system Astragalus glycyphyllos O.mykiss Aquaculture Growth Juvenile Lysozyme Survival rate Aquaculture Iran Echinacea purpurea Astragalus sp Rainbow trout Streptococcusis Immune system Astragalus glycyphyllos O.mykiss Aquaculture Growth Juvenile Lysozyme Survival rate |
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Aquaculture Iran Echinacea purpurea Astragalus sp Rainbow trout Streptococcusis Immune system Astragalus glycyphyllos O.mykiss Aquaculture Growth Juvenile Lysozyme Survival rate Aquaculture Iran Echinacea purpurea Astragalus sp Rainbow trout Streptococcusis Immune system Astragalus glycyphyllos O.mykiss Aquaculture Growth Juvenile Lysozyme Survival rate Pourgholam, Reza Sharif Rouhani, M. Safari, R. Binaei, M. Bankehsaz, Z. Taghavi, M.J. Najafian, R. Sepahdari, A. Yaghobzadeh, Z. Saeidi, A.A. Effect of Echinacea purpurea and Astragalus glycyphyllos on immune responses of rainbow trout (O. mykiss) and resistance to sterptococcosis |
description |
Nowadays, medical plants extract is used in aquaculture industry to enhance growth, immune system and fish resistance to different pathogens. In this study, some non-specific immune responses, hematology and biochemical parameters in rainbow trout juveniles (16 gr mean weight) and their resistance to Streptococcus iniae were evaluated following oral administration of Echinacea purpurea and Astragalus sp. extract. Three concentrations (0.5, 1 and 1.5 gr/kg of feed) of Echinacea purpurea and three concentrations (2, 3 and 5 gr/kg of feed) of Astragalus sp extract and control group were used for 60 days. Parameters evaluated included: levels of C4, C3 (complement components), free oxygen radicals (respiratory burst), Lysozyme, numbers of lymphocytes, monocytes and neutrophils. In the end, the relative survival rate (RSR) of fish was evaluated against S. iniae. The results showed that the levels of C3, lysozyme, oxygen free radicals, the number of neutrophils and lymphocytes in the experiment groups (the highest dose) compared to control group were increased significantly (p <0/05). While, the values of C4 and number of monocytes compared to the control group were not significantly different (p> 0.05). The relative survival rates of fish following challenge with Streptococcus iniae, were 91/11, 93/33 and 44/44 percent in experiments (Echinacea purpurea and Astragalus sp.) and control groups, respectively. In conclusion, it may be state that Echinacea purpurea and Astragalus sp. extracts enhance the non-specific immune system and fish resistance against Streptococcusis, and it seems it can be used as immunostimulant in feed. |
format |
monograph |
topic_facet |
Aquaculture Iran Echinacea purpurea Astragalus sp Rainbow trout Streptococcusis Immune system Astragalus glycyphyllos O.mykiss Aquaculture Growth Juvenile Lysozyme Survival rate |
author |
Pourgholam, Reza Sharif Rouhani, M. Safari, R. Binaei, M. Bankehsaz, Z. Taghavi, M.J. Najafian, R. Sepahdari, A. Yaghobzadeh, Z. Saeidi, A.A. |
author_facet |
Pourgholam, Reza Sharif Rouhani, M. Safari, R. Binaei, M. Bankehsaz, Z. Taghavi, M.J. Najafian, R. Sepahdari, A. Yaghobzadeh, Z. Saeidi, A.A. |
author_sort |
Pourgholam, Reza |
title |
Effect of Echinacea purpurea and Astragalus glycyphyllos on immune responses of rainbow trout (O. mykiss) and resistance to sterptococcosis |
title_short |
Effect of Echinacea purpurea and Astragalus glycyphyllos on immune responses of rainbow trout (O. mykiss) and resistance to sterptococcosis |
title_full |
Effect of Echinacea purpurea and Astragalus glycyphyllos on immune responses of rainbow trout (O. mykiss) and resistance to sterptococcosis |
title_fullStr |
Effect of Echinacea purpurea and Astragalus glycyphyllos on immune responses of rainbow trout (O. mykiss) and resistance to sterptococcosis |
title_full_unstemmed |
Effect of Echinacea purpurea and Astragalus glycyphyllos on immune responses of rainbow trout (O. mykiss) and resistance to sterptococcosis |
title_sort |
effect of echinacea purpurea and astragalus glycyphyllos on immune responses of rainbow trout (o. mykiss) and resistance to sterptococcosis |
publisher |
Iranian Fisheries Science Research Institute |
publishDate |
2014 |
url |
http://hdl.handle.net/1834/39844 |
work_keys_str_mv |
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