Immunological and antistreptococcal effects of salvia officinalis and aloe vera extracts supplemented feed in rainbow trout (oncorhynchus mykiss)

This study was conducted to determine the effect of Salvia officinalis (Sage) and Aloe vera (Barbados aloe) as immunostimulators on immune indices of Rainbow trout (Oncorhynchus mykiss) and resistance against Streptococcus iniae infection. A total of 945 rainbow trout (10±0.1 g) randomly distributed...

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Main Authors: Ali Akbar TAFI, Saeed MESHKINI, Amir TUKMECHI, Mojtaba ALISHAHI, Farzaneh NOORI
Format: Article
Language:English
Published: Kafkas University, Faculty of Veterinary Medicine 2018-02-01
Series:Kafkas Universitesi Veteriner Fakültesi Dergisi
Subjects:
Online Access:https://vetdergikafkas.org/pdf.php?id=2333
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author Ali Akbar TAFI
Saeed MESHKINI
Amir TUKMECHI
Mojtaba ALISHAHI
Farzaneh NOORI
author_facet Ali Akbar TAFI
Saeed MESHKINI
Amir TUKMECHI
Mojtaba ALISHAHI
Farzaneh NOORI
author_sort Ali Akbar TAFI
collection DOAJ
description This study was conducted to determine the effect of Salvia officinalis (Sage) and Aloe vera (Barbados aloe) as immunostimulators on immune indices of Rainbow trout (Oncorhynchus mykiss) and resistance against Streptococcus iniae infection. A total of 945 rainbow trout (10±0.1 g) randomly distributed into seven groups with three replicates, were fed with 0 (control), 0.5, 1 and 1.5% of food S. officinalis and A. vera hydroethanolic extracts for 30 days. All fishes were fed with control diet for 15 next days. Total WBC, WBC drift, complement activity, lysozyme activity and total immunoglobulin were measured at 30th and 45th days of the trial. At days 30 and 45 samples from all trial groups were injected with S. iniae (3.66×108 CFU mL-1), and their mortality was recorded at the end of next ten days period. Results showed that A. vera could significantly (P<0.05) increase total WBC, lymphocyte, neutrophil, complement activity, lysozyme activity and total Immunoglobulin in comparison to the control group. S. officinalis had no significant (P<0.05) effect on parameters under study except total Immunoglobulin at rate of 1.5%. Also A. vera (1.5%) decrease mortality and improves rainbow trout resistance against S. iniae beside control group significantly (P<0.05). Based upon findings of this study, A. vera ethanolic extract can enhance immune responses and improve resistance of rainbow trout against S. iniae infection and it can be used to replace synthetic immunostimulators for rainbow trout.
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spelling doaj.art-931475fd45c04ed7a6b70e38101f7a612023-06-19T06:43:42ZengKafkas University, Faculty of Veterinary MedicineKafkas Universitesi Veteriner Fakültesi Dergisi1309-22512018-02-0124336537010.9775/kvfd.2017.189732333Immunological and antistreptococcal effects of salvia officinalis and aloe vera extracts supplemented feed in rainbow trout (oncorhynchus mykiss)Ali Akbar TAFI0Saeed MESHKINI1Amir TUKMECHI2Mojtaba ALISHAHI3Farzaneh NOORI4Department of Fisheries, Faculty of Natural Resources, Urmia University, Urmia, IRANDepartment of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, IRANDepartment of Microbiology, Faculty of Veterinary Medicine, Urmia University, Urmia, IRANDepartment of Clinical Science, Faculty of Veterinary Medicine, Shahid Chamran University, Ahvaz, IRANDepartment of Aquaculture & Quality Control, Artemia & Aquaculture Institute, Urmia University, Urmia, IRANThis study was conducted to determine the effect of Salvia officinalis (Sage) and Aloe vera (Barbados aloe) as immunostimulators on immune indices of Rainbow trout (Oncorhynchus mykiss) and resistance against Streptococcus iniae infection. A total of 945 rainbow trout (10±0.1 g) randomly distributed into seven groups with three replicates, were fed with 0 (control), 0.5, 1 and 1.5% of food S. officinalis and A. vera hydroethanolic extracts for 30 days. All fishes were fed with control diet for 15 next days. Total WBC, WBC drift, complement activity, lysozyme activity and total immunoglobulin were measured at 30th and 45th days of the trial. At days 30 and 45 samples from all trial groups were injected with S. iniae (3.66×108 CFU mL-1), and their mortality was recorded at the end of next ten days period. Results showed that A. vera could significantly (P<0.05) increase total WBC, lymphocyte, neutrophil, complement activity, lysozyme activity and total Immunoglobulin in comparison to the control group. S. officinalis had no significant (P<0.05) effect on parameters under study except total Immunoglobulin at rate of 1.5%. Also A. vera (1.5%) decrease mortality and improves rainbow trout resistance against S. iniae beside control group significantly (P<0.05). Based upon findings of this study, A. vera ethanolic extract can enhance immune responses and improve resistance of rainbow trout against S. iniae infection and it can be used to replace synthetic immunostimulators for rainbow trout.https://vetdergikafkas.org/pdf.php?id=2333rainbow troutaloe verasalvia officinaliss. iniaeimmune responses
spellingShingle Ali Akbar TAFI
Saeed MESHKINI
Amir TUKMECHI
Mojtaba ALISHAHI
Farzaneh NOORI
Immunological and antistreptococcal effects of salvia officinalis and aloe vera extracts supplemented feed in rainbow trout (oncorhynchus mykiss)
Kafkas Universitesi Veteriner Fakültesi Dergisi
rainbow trout
aloe vera
salvia officinalis
s. iniae
immune responses
title Immunological and antistreptococcal effects of salvia officinalis and aloe vera extracts supplemented feed in rainbow trout (oncorhynchus mykiss)
title_full Immunological and antistreptococcal effects of salvia officinalis and aloe vera extracts supplemented feed in rainbow trout (oncorhynchus mykiss)
title_fullStr Immunological and antistreptococcal effects of salvia officinalis and aloe vera extracts supplemented feed in rainbow trout (oncorhynchus mykiss)
title_full_unstemmed Immunological and antistreptococcal effects of salvia officinalis and aloe vera extracts supplemented feed in rainbow trout (oncorhynchus mykiss)
title_short Immunological and antistreptococcal effects of salvia officinalis and aloe vera extracts supplemented feed in rainbow trout (oncorhynchus mykiss)
title_sort immunological and antistreptococcal effects of salvia officinalis and aloe vera extracts supplemented feed in rainbow trout oncorhynchus mykiss
topic rainbow trout
aloe vera
salvia officinalis
s. iniae
immune responses
url https://vetdergikafkas.org/pdf.php?id=2333
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