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  • 1
    Publication Date: 2021-05-19
    Description: This study is a part of the national and technology master plan entitled "Attain to technical knowledge of specific pathogen free shrimp production and cut off to dependence on foreign products". The goals of this work were to assess and analysis the risk factors of production of specific pathogen free Litopenaeus vannamei shrimp in its all stages (broodstocking, laravl production, shrimp farming, feeding and water quality), determining the pattern of outcomes monitoring, management and control of outcomes from April 2012 to September 2015 in Bandargah research station and Persian Gulf SPF Shrimp research station and their environment, belonging to Shrimp Research Center, located in Bushehr. Identification and screening of risk factors have been done based on Environment Aspect and Effect Analysis method, (EA)2, using a fine statement questionnaire and quantification of risks. The number of identified risk factors in Bandargah research station was 15 while it was 13 in Persian Gulf SPF Shrimp research station. The more number of risk factors in Bandargah station in respect to its number in Persian Gulf station is might due to lower level of biosecurity, physical structure and aging of Bandargah station and existence of two possible source of contamination, the Bushehr nuclear power plant pollutants and Bandargah fishing harbor, near to the station. On the basis of results, the maximum values of APN in Bandargah station was 42 while it was 30 in Persian Gulf station. These results revealed that the level of risk in Bandargah station is lower than that in Persian Gulf station. The most probable risks in both studied research stations are related to transmission of pathogens in shrimp feeding and water intake pollution.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Environmental risk assessment ; Shrimp ; Litopenaeus vannamei ; Specific pathogen free
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 80pp.
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  • 2
    Publication Date: 2021-05-19
    Description: White spot syndrome virus (WSSV) is the causative agent responsible for huge-shrimp viral epidemics in shrimp farms throughout the world.Our study was aimed to determine the effect of WSSV Gamma-vaccinated Litopenaeus vannamei in occurrence of apoptosis. One thousand and twenty PL15 were randomly distributed among 2 treatments and two control groups. Gama-Vaccinated shrimp and none-Gamma-vaccinated ones were our treated and untreated groups. Our result showed there is a significant difference (p〈.05) between vaccinatedexposed group (82.33±2.51) and none-vaccinated exposed group (26.00±10.00) was about 56%. It is concluded that apoptosis can be a helpful process as immune function in shrimp especially against WSSV.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Histopathological ; Vaccination ; White Spot Disease ; Shrimp ; Litopenaeus vannamei ; WSSV ; Gamma ; Immune
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 30pp.
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  • 3
    Publication Date: 2021-05-19
    Description: The development of shrimp aquaculture, in spite of its global necessity, is largely at stake as significant ecological and pathological problems are increasing in the vast majority of the shrimp producing countries. Shrimp immunology is a key element in establishing strategies for controlling diseases in shrimp aquaculture. The total haemocyte count (THC), differential haemocyte count (DHC), total plasma protein (TPP), Phagocytic activity (PA), bacterial clearance efficiency (BCE) and bactericidal activity (BE) were examined when the F. indicus shrimps (11.32±1.20 g) were immersed in seawater (39 ppt and 25 ± 1 ○C) containing hot-water extracts of brown alga Sargassum glaucescens at 100, 300 and 500 mg/l. These parameters increased significantly (p 〈 0.05) when the shrimp were immersed in seawater containing hot-water extracts at 100 mg/l after 3h and 300 and 500 mg/l after 2 h. F. indicus shrimps that were immersed in hot-water extracts at 300 and 500 mg/l had increased phagocytic activity and clearance efficiency to Vibrio spp. after 2 hours. But bactericidal activity increased significantly after 1 hour in the same concentrations.
    Description: Published
    Keywords: Shrimp ; Fenneropenaeus indicus ; Sargassum glaucescens ; Total haemocyte count ; Differential haemocyte count ; Total plasma protein ; Phagocytic activity ; Bacterial clearance efficiency ; Seaweed ; Aquaculture
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.616-630
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  • 4
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    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25544 | 18721 | 2018-10-05 15:54:31 | 25544 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-16
    Description: White spot syndrome virus (WSSV) is the causative agent responsible for huge-shrimp viral epidemics in shrimp farms throughout the world.Our study was aimed to determine the effect of WSSV Gamma-vaccinated Litopenaeus vannamei in occurrence of apoptosis. One thousand and twenty PL15 were randomly distributed among 2 treatments and two control groups. Gama-Vaccinated shrimp and none-Gamma-vaccinated ones were our treated and untreated groups. Our result showed there is a significant difference (p〈.05) between vaccinatedexposed group (82.33±2.51) and none-vaccinated exposed group (26.00±10.00) was about 56%. It is concluded that apoptosis can be a helpful process as immune function in shrimp especially against WSSV.
    Keywords: Aquaculture ; Health ; Iran ; Vaccination ; White Spot Disease ; Shrimp ; Litopenaeus vannamei ; WSSV ; Gamma ; Immune
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 30
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  • 5
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    Unknown
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25698 | 18721 | 2018-10-08 09:34:51 | 25698 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-16
    Description: This study is a part of the national and technology master plan entitled "Attain to technical knowledge of specific pathogen free shrimp production and cut off to dependence on foreign products". The goals of this work were to assess and analysis the risk factors of production of specific pathogen free Litopenaeus vannamei shrimp in its all stages (broodstocking, laravl production, shrimp farming, feeding and water quality), determining the pattern of outcomes monitoring, management and control of outcomes from April 2012 to September 2015 in Bandargah research station and Persian Gulf SPF Shrimp research station and their environment, belonging to Shrimp Research Center, located in Bushehr. Identification and screening of risk factors have been done based on Environment Aspect and Effect Analysis method, (EA)2, using a fine statement questionnaire and quantification of risks. The number of identified risk factors in Bandargah research station was 15 while it was 13 in Persian Gulf SPF Shrimp research station. The more number of risk factors in Bandargah station in respect to its number in Persian Gulf station is might due to lower level of biosecurity, physical structure and aging of Bandargah station and existence of two possible source of contamination, the Bushehr nuclear power plant pollutants and Bandargah fishing harbor, near to the station. On the basis of results, the maximum values of APN in Bandargah station was 42 while it was 30 in Persian Gulf station. These results revealed that the level of risk in Bandargah station is lower than that in Persian Gulf station. The most probable risks in both studied research stations are related to transmission of pathogens in shrimp feeding and water intake pollution.
    Keywords: Fisheries ; Iran ; Persian Gulf ; Bushehr ; Environmental risk assessment ; Shrimp ; Litopenaeus vannamei ; Specific pathogen free
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 80
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