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  • 1
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    Partial harvesting from intensive shrimp (penaeusvannamei) culture pond in helle site (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: In this investigation, were examined the effect of partial harvesting on optimal management of shrimp culture. In order to achieve to the purpose 6Pool0.4/hectare was selected. Three pool with density Twenty-five per sq. m as a witness and another three pond by density fifty per sq. m as the test sample were storage. Based on the results of biometry and biomass estimates of pool was calculated and provided amounts daily meals for shrimps. The first harvest took place after a period of120 days from the test pools .Average of harvest from pools B4, B6andB7 ,was determined respectively, 1373,1365 and1105kg.Second harvest from treatment poolsB4, B6andB7were determined, respectively, 1663,1748 and1783kg. Final harvests from the pools were after 150 day. Harvest average from control pools B1, B2 and B3 was calculated and estimated respectively, 1824, 2000 and 1685 kg. The Average of FCR was calculated 1.51 in control samples. In general, the average of feed conversion rate of the treatment samples were calculated 1.51.We did not see the difference between FCR of control and test samples. According to the project's achievements, we can say, partial harvesting has an important role to increased productivity of shrimp farms in Hellh site from BushehrProvince.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Partial Harvesting ; Shrimp Culture ; Feed Conversion Rate ; Penaeusvannamei ; Culture Pond ; Biomass ; Samples
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 30pp.
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  • 2
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    Study on health and Immunity index of vaccinated Litopenaeus vannamei against white spot virus disease (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: In this study, the inhibitory effect of Radio-Vaccine against white spot disease on white shrimp (Litopenaeus vannamei) was studied. This vaccine was prepared by Nuclear Science and Technology Research Institute of Atomic Energy Organization of Iran. 14,000 L. vannamei postlarvae were used in treatments after adaptation. Eight treatments, four positive and two negative controls were considered in triplicate. Initially, three meals a day for a month in the hours of 8, 16 and 24 were feeding. Three times in day at 8, 16 and 24 clock were feeding in first mount. Waste food and fecal remaining in the tanks were removed. In the second and third months of treatment, feeding frequency increased to three and four times in day which is at 6, 18 and 24 were given concentrate feed and Artemia nauplii at 12 clocks. Vaccination was carried out by immersion. Vaccination was performed in two doses with an interval of 10 to 14 days. For biometric testing and evaluation of immune cells throughout the experiment, three samples were taken randomly from the tanks. To assess the health status of shrimp, indices of Total Hemocyte Count and Total Plasma Protein was determined. Phagocytic activity of hemocytes was evaluated to assess immune setuation of shrimps. The results of this study showed that the shrimp immune system, as in many reports, the effect of recombinant vaccines and passive safety in memory as "Alternative adaptive immune responses" after experimental infection of white spot virus (WSSV) in wild and farmed shrimp is confirmed, will respond to vaccination against white spot disease.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Immunity index ; Litopenaeus vannamei ; White spot virus ; Disease ; White shrimp ; Feeding ; Artemia nauplii ; Samples ; Hemocyte ; Plasma Protein
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 48pp.
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  • 3
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    Partial harvesting from intensive shrimp (penaeusvannamei) culture pond in helle site (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25560 | 18721 | 2018-10-05 16:31:39 | 25560 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: In this investigation, were examined the effect of partial harvesting on optimal management of shrimp culture. In order to achieve to the purpose 6Pool0.4/hectare was selected. Three pool with density Twenty-five per sq. m as a witness and another three pond by density fifty per sq. m as the test sample were storage. Based on the results of biometry and biomass estimates of pool was calculated and provided amounts daily meals for shrimps. The first harvest took place after a period of120 days from the test pools .Average of harvest from pools B4, B6 and B7, was determined respectively, 1373,1365 and 1105kg. Second harvest from treatment poolsB4, B6andB7were determined, respectively, 1663, 1748 and1783kg. Final harvests from the pools were after 150 day. Harvest average from control pools B1, B2 and B3 was calculated and estimated respectively, 1824, 2000 and 1685 kg. The Average of FCR was calculated 1.51 in control samples. In general, the average of feed conversion rate of the treatment samples were calculated 1.51.We did not see the difference between FCR of control and test samples. According to the project's achievements, we can say, partial harvesting has an important role to increased productivity of shrimp farms in Helleh site from Bushehr Province.
    Keywords: Aquaculture ; Iran ; Bushehr Province ; Hellh Site ; Partial Harvesting ; Shrimp Culture ; Feed Conversion Rate ; Penaeusvannamei ; Culture Pond ; Biomass ; Samples
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 30
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  • 4
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    Unknown
    Study on health and Immunity index of vaccinated Litopenaeus vannamei against white spot virus disease (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25541 | 18721 | 2018-10-05 16:29:38 | 25541 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: In this study, the inhibitory effect of Radio-Vaccine against white spot disease on white shrimp (Litopenaeus vannamei) was studied. This vaccine was prepared by Nuclear Science and Technology Research Institute of Atomic Energy Organization of Iran. 14,000 L. vannamei postlarvae were used in treatments after adaptation. Eight treatments, four positive and two negative controls were considered in triplicate. Initially, three meals a day for a month in the hours of 8, 16 and 24 were feeding. Three times in day at 8, 16 and 24 clock were feeding in first mount. Waste food and fecal remaining in the tanks were removed. In the second and third months of treatment, feeding frequency increased to three and four times in day which is at 6, 18 and 24 were given concentrate feed and Artemia nauplii at 12 clocks. Vaccination was carried out by immersion. Vaccination was performed in two doses with an interval of 10 to 14 days. For biometric testing and evaluation of immune cells throughout the experiment, three samples were taken randomly from the tanks. To assess the health status of shrimp, indices of Total Hemocyte Count and Total Plasma Protein was determined. Phagocytic activity of hemocytes was evaluated to assess immune setuation of shrimps. The results of this study showed that the shrimp immune system, as in many reports, the effect of recombinant vaccines and passive safety in memory as "Alternative adaptive immune responses" after experimental infection of white spot virus (WSSV) in wild and farmed shrimp is confirmed, will respond to vaccination against white spot disease.
    Keywords: Aquaculture ; Health ; Iran ; Immunity index ; Litopenaeus vannamei ; White spot virus ; Disease ; White shrimp ; Feeding ; Artemia nauplii ; Samples ; Hemocyte ; Plasma Protein
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 48
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  • 5
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    A survey on effects of shrimp aquaculture on the coastal waters of Bushehr (Helleh region) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25130 | 18721 | 2018-08-26 13:37:55 | 25130 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: This survey was designed in the Helleh and Delvar regions, to understand effects of aquaculture industry on coastal waters of Bushehr, in 2003. In Delvar region, five stations were selected comprise; effluent canals of Delvar 18 and 14, sea (south and north of site), influent water (Piyazi bay). In Helleh region, two stations; effluent canal and Ramleh bay were selected. Sediment and water samples were collected from effluent canal, influent canal and sea during the 9 month period (before until after culture season). The variations of selected water quality parameters were controlled monthly. Results show that, the maximum amount of ammonium in Helleh region was 0.33 mg/lit and in regions of Delvar 18 and 14 were 0.19, 0.20 mg/lit. However the maximum amounts of phosphate in Helleh region was 0.26 mg/lit and in regions of Delvar 18 and 14 were 0.24, 0.23 mg/lit. Correlation coefficients assess between phosphate concentration of effluent canal and sea station (gate of Ramleh) in Helleh region was r=0.91 (α=0.01). Also correlation coefficients
    Keywords: Aquaculture ; Iran ; Bushehr Province ; Helleh region ; Survey ; Aquaculture ; Sediment ; Samples ; Culture ; Coastal waters ; Shrimp ; Parameters ; Water quality ; Comparison
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 122
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