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  • 1
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    Evaluation of the immunity factors (THC, TPP, PO, SOD, POD) of shrimp fed with the algae Gracilaria corticata compared to shrimp fed without algae and exposed to white spot virus (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25807 | 18721 | 2018-10-13 10:13:41 | 25807 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: White spot disease (WSD) is one of the shrimp deadliest viral diseases that causes heavy losses on all shrimp of Penaeid family. Most invertebrates are lacking adaptive immune system and its defense is the innate immune system that is as cellular and humoral, but a like immune system against white spot virus in shrimp was been detected. In this research, control and prevention of white spot disease in shrimp using algae Gracilaria corticata, investigated. About 300 vannamei shrimp were divided to 4 groups and fed by normal pellet and algae extract in 14 days. At the end of the fourteenth day half of the shrimp were challenged with acute white spot virus. After the fourteenth day in the days 0, 3, 9, 18 and 25 sampling were done from the hemolymph of survived shrimps and survival and immune factors were evaluated. Based on results, in the challenge test, shrimps that fed with algae extract has a significant survival rate than shrimp fed with commercial diet. Increased the Immune Factors from day one to day 25 observed during the test. Greatest amount of Immune Factors THC, TPP, SOD, POD and PO in T1 group were observed in day 25 of tests. This situation was also true for group2 (T2), but its rate significantly was less than group 1(T1).
    Keywords: Aquaculture ; Health ; Iran ; Evaluation ; Immunity factors ; THC ; TPP ; PO ; SOD ; POD ; Shrimp ; Algae ; Gracilaria corticata ; White spot virus
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 62
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  • 2
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    Monitoring of fresh water fish farms in north of khouzestan province for mortality emphasis on silver carp (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25647 | 18721 | 2018-10-08 08:31:58 | 25647 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Carp fishes culture is one of the most important subsector fisheries industry in Khouzestan province. Every year in summer high mortality occurred in carp fishes farms specially in silver carp of north Khouzestan province. Inspection of silver carp for identification microorganisms agents (Bacteria, Fungi, Parasite and virus: SVC,KHV), determine total plate count, examination physic chemical factors of farms water, histopathology, identification planktons, the main objectives of this study, which was held in 2012. 180 silver carp from 5 farms (10 ponds) with high mortality in years ago were collected in north Khouzestan province and then differents parts of fish body including: intestine, gills, body surface, eyes and liver were examined. Physico chemical parameters and plankton sampled monthly. Physico chemical parameters of water were measured all over culture period for 960 times as follows: Do(4.45-8.5 ppm), BOD5(1.1-9.25 ppm), temp(19-33c), pH(6.82-8.6), total hardness(348-10053), turbidity(5-56 FTU), Amonia(0.001- 0.06 ppm) and co2( 0.88-13.2). From a total 180 fish examined, 136 (75%) showed unknown algae infestation and 126 (70%) showed parasitic (Dactylogyrus, Gyrodactylus and metacercaria Diplostomum). The results of biotic parameters in farms showed that cyanophycae (Cylindropermopsis, Merismopedia and Nitzeshia) were the most group of phytoplanktons. Histopathological studies have shown necrosis in tobules kidney, degeneration hepatocyte and hyperplasia in gill cells and also results demonstrated the mean of total plate count (0-376 CFU/ml103). 60 samples with sighn severe hemorrhagic on surface body were collected for virology studies by PCR procedure (IQ2000 kit) and have shown which 3 sample suspected to KHV but SVC was not identified.
    Keywords: Aquaculture ; Iran ; Khouzestan Province ; Silver Carp ; Water physic chemical factor ; Microorganisms ; Histopathology ; Fresh water ; Mortality ; Fisheries ; Bacteria ; Fungi ; Parasite ; Virus ; Planktons ; Dactylogyrus ; Gyrodactylus ; Cyanophycae ; Cylindropermopsis ; Nitzeshia ; PCR
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 110
    Location Call Number Expected Availability
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  • 3
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    Unknown
    Monitoring of fresh water fish farms in north of khouzestan province for mortality emphasis on silver carp (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Carp fishes culture is one of the most important subsector fisheries industry in Khouzestan province. Every year in summer high mortality occurred in carp fishes farms specially in silver carp of north Khouzestan province. Inspection of silver carp for identification microorganisms agents (Bacteria, Fungi, Parasite and virus: SVC,KHV), determine total plate count, examination physic chemical factors of farms water, histopathology, identification planktons, the main objectives of this study, which was held in 2012. 180 silver carp from 5 farms (10 ponds) with high mortality in years ago were collected in north Khouzestan province and then differents parts of fish body including: intestine, gills, body surface, eyes and liver were examined. Physico chemical parameters and plankton sampled monthly. Physico chemical parameters of water were measured all over culture period for 960 times as follows: Do(4.45-8.5 ppm), BOD5(1.1-9.25 ppm), temp(19-33•c), pH(6.82-8.6), total hardness(348-10053), turbidity(5-56 FTU), Amonia(0.001- 0.06 ppm) and co2( 0.88-13.2). From a total 180 fish examined, 136 (75%) showed unknown algae infestation and 126 (70%) showed parasitic (Dactylogyrus, Gyrodactylus and metacercaria Diplostomum). The results of biotic parameters in farms showed that cyanophycae (Cylindropermopsis, Merismopedia and Nitzeshia) were the most group of phytoplanktons. Histopathological studies have shown necrosis in tobules kidney, degeneration hepatocyte and hyperplasia in gill cells and also results demonstrated the mean of total plate count (0-376 CFU/ml103). 60 samples with sighn severe hemorrhagic on surface body were collected for virology studies by PCR procedure (IQ2000 kit) and have shown which 3 sample suspected to KHV but SVC was not identified.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Silver Carp ; Water physic chemical factor ; Microorganisms ; Histopathology ; Fresh water ; Mortality ; Fisheries ; Bacteria ; Fungi ; Parasite ; Virus ; Planktons ; Dactylogyrus ; Gyrodactylus ; Cyanophycae ; Cylindropermopsis ; Nitzeshia ; PCR
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 110pp.
    Location Call Number Expected Availability
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  • 4
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    Unknown
    Evaluation of the immunity factors (THC, TPP, PO, SOD, POD) of shrimp fed with the algae Gracilaria corticata compared to shrimp fed without algae and exposed to white spot virus (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: White spot disease (WSD) is one of the shrimp deadliest viral diseases that causes heavy losses on all shrimp of Penaeid family. Most invertebrates are lacking adaptive immune system and its defense is the innate immune system that is as cellular and humoral, but a like immune system against white spot virus in shrimp was been detected. In this research, control and prevention of white spot disease in shrimp using algae Gracilaria corticata, investigated. About 300 vannamei shrimp were divided to 4 groups and fed by normal pellet and algae extract in 14 days. At the end of the fourteenth day half of the shrimp were challenged with acute white spot virus. After the fourteenth day in the days 0, 3, 9, 18 and 25 sampling were done from the hemolymph of survived shrimps and survival and immune factors were evaluated. Based on results, in the challenge test, shrimps that fed with algae extract has a significant survival rate than shrimp fed with commercial diet. Increased the Immune Factors from day one to day 25 observed during the test. Greatest amount of Immune Factors THC, TPP, SOD, POD and PO in T1 group were observed in day 25 of tests. This situation was also true for group2 (T2), but its rate significantly was less than group 1(T1).
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Evaluation ; Immunity factors ; THC ; TPP ; PO ; SOD ; POD ; Shrimp ; Algae ; Gracilaria corticata ; White spot virus
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 62pp.
    Location Call Number Expected Availability
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    PAPER (OA)
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