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  • 1
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    Comparative study on gonad development in rainbow trout (Oncorhynchus mykiss) reared in fresh and brackish water in the Yazd Province (2021)
    In:  http://aquaticcommons.org/id/eprint/24682 | 18721 | 2018-08-04 15:33:20 | 24682 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: Rainbow trout (Oncorhylichus mikiss) weidting 200±5 grams were used in this study to compare their gonad development in fresh and brackish water in Yazd Province. The culture period lasted 140 days from October to March 2003 during which time the temperature 03.8+0.6), pH (8.18±0.12) and dissolved oxygen (6.2+0.11) of fresh and brackish water were kept nearly constant. The salinity of fresh and brackish water was 0.4 -0.5 and 14.3-14.7ppt respectively. The fish were fed common commercial trout food (Chineh GFT2) based on temperature and biomass. Histological studies indicated that the gonad development is accelerated in brackish water where the males mature two month eal her than those reared in freshwater. The gonadosomatic index (G51) also affirmed the gonad development (P〈0.05).
    Keywords: Biology ; Gonad development ; Rainbow trout ; Oncorhynchus mykiss ; Histological study ; Yazd Province ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 113-126
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  • 2
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    Comparative study on gonad development in Rainbow Trout (Oncorhynchus mykiss) reared in fresh and brackish water in the Yazd Province (2018)
    Details
    Publication Date: 2021-05-19
    Description: Rainbow trout (Oncorhynchus mykiss) weighting 200±5 grams were used in this study to compare their gonad development in fresh and brackish water in Yazd Province. The culture period lasted 140 days from October to March 2003 during which time the temperature (13.8±0.6), pH (8.18±0.12) and dissolved oxygen (6.2±0.1 1) of fresh and brackish water were kept nearly constant. The salinity of fresh and brackish water was 0.4 -0.5 and 14.3-14.7ppt respectively. The fish were fed common commercial trout food (Chineh GFT2) based on temperature and biomass. Histological studies indicated that the gonad development is accelerated in brackish water where the males mature two month earlier than those reared in freshwater. The Gonadosomatic index (GSI) also affirmed the gonad development (P〈0.05).
    Description: Published
    Keywords: Histological ; Gonad development ; Rainbow Trout ; Oncorhynchus mykiss ; Histological study ; Temperature ; Salinity ; Biomass ; Gonadosomatic index ; GSI ; Brackish water ; Freshwater
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.113-126
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  • 3
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    Comparative study on gonad development in Rainbow Trout (Oncorhynchus mykiss) reared in fresh and brackish water in the Yazd Province (2018)
    Details
    Publication Date: 2021-05-19
    Description: Rainbow trout (Oncorhylichus mikiss) weidting 200±5 grams were used in this study to compare their gonad development in fresh and brackish water in Yazd Province. The culture period lasted 140 days from October to March 2003 during which time the temperature 03.8+0.6), pH (8.18±0.12) and dissolved oxygen (6.2+0.11) of fresh and brackish water were kept nearly constant. The salinity of fresh and brackish water was 0.4 -0.5 and 14.3-14.7ppt respectively. The fish were fed common commercial trout food (Chineh GFT2) based on temperature and biomass. Histological studies indicated that the gonad development is accelerated in brackish water where the males mature two month eal her than those reared in freshwater. The gonadosomatic index (G51) also affirmed the gonad development (P〈0.05).
    Description: Published
    Keywords: Rainbow trout ; Oncorhynchus mykiss ; Brackish ; Gonad development ; Histological study ; Salinity ; Freshwater
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.113-126
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