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  • 1
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    Study of pathological effects of an organic germicide bathing on rainbow trout (2018)
    Details
    Publication Date: 2021-05-19
    Description: The aim of this study was evaluation an organic germicide (Aquagerm) histological affects on Rainbow trout (Oncorhynchus mykiss) vital tissues. This new disinfectant is an aquatic antiseptic and mixed-oxidant disinfectant which is produced for the first time in Iran. This new product mechanism is based on oxidant properties of pro-sulphate which attack crucial structures of pathogens. In this study, forty healthy fish were selected and divided in to two groups as control and treatment. The treatment group was treated with 1/2000 concentration of organic germicide for 45 min (according to the manufacturing protocols). At 4, 8, 12, 24, 48 and 96 h after bath challenge, 5 specimens were collected from treatment and one from control group. Gill, brain, kidney, and liver of all fish were sampled. Some histological damages such as edema and detachment of basic layer in secondary gill filaments were observed in gill microscopy results. The most important histological changes observed in the brain were congestion of some blood vessels. Furthermore, some evidences of increased melano-macrophage, glomerular shrinkage, and dilatation in Bowman capsules were recorded whereas no any damages were observed in liver. All histological changes removed after 48-96 h. It could be concluded that, all pathological observations in this study were just a natural response of fish body after exposing to the new disinfectant, and they were not recorded any damages like those which happen against hazardous chemicals. It seems that there is no risk associated with the consumption of this disinfectant for the fish tissues.
    Description: Published
    Keywords: Fish disease ; Oncorhynchus mykiss ; Rainbow trout ; Organic germicide ; Kidney ; Liver ; Gill ; Brain ; Histopathology ; Pathological ; Tissues
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.500-510
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  • 2
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    The Status of white spot syndrome virus (WSSV) in Islamic Republic of Iran (2018)
    Details
    Publication Date: 2021-05-19
    Description: White spot syndrome virus (WSSV), the causative virus of disease, is found in most shrimp farming areas in Iran, and it cause large economic losses to the shrimp farming industry. Shrimp aquaculture is an important industry in Iran and plays an important role in aquaculture production. The shrimp production in 2012 was more than 12000 metric tonnes and it is estimated it will reach 20000 tonnes in 2013.White spot syndrome virus is highly virulent in shrimp farms and can spread quickly and - cause up to 100% mortality within 3-7 days. The virus is a very large, enveloped, double stranded DNA (ds DNA) and assigned by ICTV to a new genus Whispovirus and belong to Nimaviridae family. In Iran WSSV first appeared in Khuzestan Province in the south of Iran and later on it appeared in other provinces such as Bushehr, and Sistan and Baluchestan. The aim of this review is to give current information of WSSV in Iran, host ranges, carriers, biology, clinical signs, histopathology, PCR, with emphasis on the effects of WSSV in shrimp aquaculture.
    Description: Published
    Keywords: Biology ; Physiology ; Whispovirus ; Nimaviridae ; WSSV ; Shrimp ; Disease ; Aquaculture
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.1021-1055
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  • 3
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    The status of white spot syndrome virus (WSSV) in Islamic Republic of Iran (2021)
    In:  http://aquaticcommons.org/id/eprint/22747 | 18721 | 2018-05-19 18:40:13 | 22747 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-09
    Description: White spot syndrome virus (WSSV), the causative virus of disease, is found in most shrimp farming areas in Iran, and it causes large economic losses to the shrimp farming industry. Shrimp aquaculture is an important industry in Iran and plays an important role in aquaculture production. The shrimp production in 2012 was more than 12000 metric tonnes and it is estimated it will reach 20000 tonnes in 2013. White spot syndrome virus is highly virulent in shrimp farms and can spread quickly and cause up to 100% mortality within 3-7 days. The virus is a very large, enveloped, double stranded DNA (ds DNA) and assigned by ICTV to a new genus Whispovirus and belong to Nimaviridae family. In Iran WSSV first appeared in Khuzestan Province in the south of Iran, and later on it appeared in other provinces such as Bushehr, and Sistan and Baluchestan. The aim of this review is to give current information of WSSV in Iran, host ranges, carriers, biology, clinical signs, histopathology, PCR, with emphasis on the effects of WSSV in shrimp aquaculture.
    Keywords: Aquaculture ; Biology ; Fisheries ; WSSV ; Shrimp ; Disease ; Aquaculture ; Biology ; Physiology ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 1021-1055
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  • 4
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    Study of pathological effects of an organic germicide bathing on rainbow trout (2021)
    In:  http://aquaticcommons.org/id/eprint/22618 | 18721 | 2018-05-02 22:46:09 | 22618 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-08
    Description: The aim of this study was evaluation an organic germicide (Aquagerm) histological affects on Rainbow trout (Oncorhynchus mykiss) vital tissues. This new disinfectant is an aquatic antiseptic and mixed-oxidant disinfectant which is produced for the first time in Iran. This new product mechanism is based on oxidant properties of pro-sulphate which attack crucial structures of pathogens. In this study, forty healthy fish were selected and divided into two groups as control and treatment. The treatment group was treated with 1/2000 concentration of organic germicide for 45 min (according to the manufacturing protocols). At 4, 8, 12, 24, 48 and 96 h after bath challenge, 5 specimens were collected from treatment and one from control group. Gill, brain, kidney, and liver of all fish were sampled. Some histological damages such as edema and detachment of basic layer in secondary gill filaments were observed in gill microscopy results. The most important histological changes observed in the brain were congestion of some blood vessels. Furthermore, some evidences of increased melano-macrophage, glomerular shrinkage, and dilatation in Bowman capsules were recorded whereas no any damages were observed in liver. All histological changes removed after 48-96 h. It could be concluded that, all pathological observations in this study were just a natural response of fish body after exposing to the new disinfectant, and they were not recorded any damages like those which happen against hazardous chemicals. It seems that there is no risk associated with the consumption of this disinfectant for the fish tissues.
    Keywords: Aquaculture ; Biology ; Fisheries ; Rainbow trout ; Organic germicide ; Kidney ; Liver ; Gill ; Brain ; Histopathology ; Iran ; Oncorhynchus mykiss ; pathological
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 500-510
    Location Call Number Expected Availability
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    PAPER (OA)
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