Sexing of farmed immature beluga (Huso huso) using steroid hormone levels as indicators
Abstract In order to avoid the invasiveness of sexing associated with biopsy in beluga (Huso huso), we explored the possibilities of using sex steroid levels to determine the sex of farmed immature fish. Belugas were selected randomly from 2-, 4- and 5-year-old stocks, cultured under the same enviro...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Nazeri, S. [verfasserIn] Mojazi Amiri, B. [verfasserIn] Nazeri, M. R. [verfasserIn] Mirvaghefi, A. R. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2013 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Comparative haematology international - London : Springer, 1991, 23(2013), 3 vom: 10. Jan., Seite 631-635 |
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| Übergeordnetes Werk: |
volume:23 ; year:2013 ; number:3 ; day:10 ; month:01 ; pages:631-635 |
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| DOI / URN: |
10.1007/s00580-012-1662-8 |
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| 520 | |a Abstract In order to avoid the invasiveness of sexing associated with biopsy in beluga (Huso huso), we explored the possibilities of using sex steroid levels to determine the sex of farmed immature fish. Belugas were selected randomly from 2-, 4- and 5-year-old stocks, cultured under the same environmental and feeding regimes. Conventional methods of sexing by biopsy and histological observation were used to determine the sex and gonadal stage, while enzyme-linked immunosorbent assay was employed to measure the levels of testosterone (T) and 17β-estradiol ($ E_{2} $) in serum. All fish had differentiated gonads, and males and females could be distinguished microscopically in all age groups. T levels differed significantly between males and females but made for poor predictors of sex due to the substantial overlap in ranges of T levels in both sexes. There was no significant difference in $ E_{2} $ levels between males and females. When calculating the T/$ E_{2} $ ratios (TER), a clear separation was obtained for 5-year-old fish, ratios over 40 predicting male and those below 40 predicting female phenotypes. The study demonstrated that the TER can be used as an effective indicator to separate males and females in cultured immature 5-year-old beluga. | ||
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| 650 | 4 | |a Spermatogenesis |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Mojazi Amiri, B. |e verfasserin |4 aut | |
| 700 | 1 | |a Nazeri, M. R. |e verfasserin |4 aut | |
| 700 | 1 | |a Mirvaghefi, A. R. |e verfasserin |4 aut | |
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10.1007/s00580-012-1662-8 doi (DE-627)SPR007225105 (SPR)s00580-012-1662-8-e DE-627 ger DE-627 rakwb eng 610 ASE 610 ASE Nazeri, S. verfasserin aut Sexing of farmed immature beluga (Huso huso) using steroid hormone levels as indicators 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In order to avoid the invasiveness of sexing associated with biopsy in beluga (Huso huso), we explored the possibilities of using sex steroid levels to determine the sex of farmed immature fish. Belugas were selected randomly from 2-, 4- and 5-year-old stocks, cultured under the same environmental and feeding regimes. Conventional methods of sexing by biopsy and histological observation were used to determine the sex and gonadal stage, while enzyme-linked immunosorbent assay was employed to measure the levels of testosterone (T) and 17β-estradiol ($ E_{2} $) in serum. All fish had differentiated gonads, and males and females could be distinguished microscopically in all age groups. T levels differed significantly between males and females but made for poor predictors of sex due to the substantial overlap in ranges of T levels in both sexes. There was no significant difference in $ E_{2} $ levels between males and females. When calculating the T/$ E_{2} $ ratios (TER), a clear separation was obtained for 5-year-old fish, ratios over 40 predicting male and those below 40 predicting female phenotypes. The study demonstrated that the TER can be used as an effective indicator to separate males and females in cultured immature 5-year-old beluga. Beluga (dpeaa)DE-He213 Sexing (dpeaa)DE-He213 Aquaculture (dpeaa)DE-He213 Sex steroid (dpeaa)DE-He213 Oogenesis (dpeaa)DE-He213 Spermatogenesis (dpeaa)DE-He213 Mojazi Amiri, B. verfasserin aut Nazeri, M. R. verfasserin aut Mirvaghefi, A. R. verfasserin aut Enthalten in Comparative haematology international London : Springer, 1991 23(2013), 3 vom: 10. Jan., Seite 631-635 (DE-627)559430590 (DE-600)2413027-8 1433-2973 nnns volume:23 year:2013 number:3 day:10 month:01 pages:631-635 https://dx.doi.org/10.1007/s00580-012-1662-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_120 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 23 2013 3 10 01 631-635 |
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10.1007/s00580-012-1662-8 doi (DE-627)SPR007225105 (SPR)s00580-012-1662-8-e DE-627 ger DE-627 rakwb eng 610 ASE 610 ASE Nazeri, S. verfasserin aut Sexing of farmed immature beluga (Huso huso) using steroid hormone levels as indicators 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In order to avoid the invasiveness of sexing associated with biopsy in beluga (Huso huso), we explored the possibilities of using sex steroid levels to determine the sex of farmed immature fish. Belugas were selected randomly from 2-, 4- and 5-year-old stocks, cultured under the same environmental and feeding regimes. Conventional methods of sexing by biopsy and histological observation were used to determine the sex and gonadal stage, while enzyme-linked immunosorbent assay was employed to measure the levels of testosterone (T) and 17β-estradiol ($ E_{2} $) in serum. All fish had differentiated gonads, and males and females could be distinguished microscopically in all age groups. T levels differed significantly between males and females but made for poor predictors of sex due to the substantial overlap in ranges of T levels in both sexes. There was no significant difference in $ E_{2} $ levels between males and females. When calculating the T/$ E_{2} $ ratios (TER), a clear separation was obtained for 5-year-old fish, ratios over 40 predicting male and those below 40 predicting female phenotypes. The study demonstrated that the TER can be used as an effective indicator to separate males and females in cultured immature 5-year-old beluga. Beluga (dpeaa)DE-He213 Sexing (dpeaa)DE-He213 Aquaculture (dpeaa)DE-He213 Sex steroid (dpeaa)DE-He213 Oogenesis (dpeaa)DE-He213 Spermatogenesis (dpeaa)DE-He213 Mojazi Amiri, B. verfasserin aut Nazeri, M. R. verfasserin aut Mirvaghefi, A. R. verfasserin aut Enthalten in Comparative haematology international London : Springer, 1991 23(2013), 3 vom: 10. Jan., Seite 631-635 (DE-627)559430590 (DE-600)2413027-8 1433-2973 nnns volume:23 year:2013 number:3 day:10 month:01 pages:631-635 https://dx.doi.org/10.1007/s00580-012-1662-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_120 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 23 2013 3 10 01 631-635 |
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10.1007/s00580-012-1662-8 doi (DE-627)SPR007225105 (SPR)s00580-012-1662-8-e DE-627 ger DE-627 rakwb eng 610 ASE 610 ASE Nazeri, S. verfasserin aut Sexing of farmed immature beluga (Huso huso) using steroid hormone levels as indicators 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In order to avoid the invasiveness of sexing associated with biopsy in beluga (Huso huso), we explored the possibilities of using sex steroid levels to determine the sex of farmed immature fish. Belugas were selected randomly from 2-, 4- and 5-year-old stocks, cultured under the same environmental and feeding regimes. Conventional methods of sexing by biopsy and histological observation were used to determine the sex and gonadal stage, while enzyme-linked immunosorbent assay was employed to measure the levels of testosterone (T) and 17β-estradiol ($ E_{2} $) in serum. All fish had differentiated gonads, and males and females could be distinguished microscopically in all age groups. T levels differed significantly between males and females but made for poor predictors of sex due to the substantial overlap in ranges of T levels in both sexes. There was no significant difference in $ E_{2} $ levels between males and females. When calculating the T/$ E_{2} $ ratios (TER), a clear separation was obtained for 5-year-old fish, ratios over 40 predicting male and those below 40 predicting female phenotypes. The study demonstrated that the TER can be used as an effective indicator to separate males and females in cultured immature 5-year-old beluga. Beluga (dpeaa)DE-He213 Sexing (dpeaa)DE-He213 Aquaculture (dpeaa)DE-He213 Sex steroid (dpeaa)DE-He213 Oogenesis (dpeaa)DE-He213 Spermatogenesis (dpeaa)DE-He213 Mojazi Amiri, B. verfasserin aut Nazeri, M. R. verfasserin aut Mirvaghefi, A. R. verfasserin aut Enthalten in Comparative haematology international London : Springer, 1991 23(2013), 3 vom: 10. Jan., Seite 631-635 (DE-627)559430590 (DE-600)2413027-8 1433-2973 nnns volume:23 year:2013 number:3 day:10 month:01 pages:631-635 https://dx.doi.org/10.1007/s00580-012-1662-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_120 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 23 2013 3 10 01 631-635 |
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10.1007/s00580-012-1662-8 doi (DE-627)SPR007225105 (SPR)s00580-012-1662-8-e DE-627 ger DE-627 rakwb eng 610 ASE 610 ASE Nazeri, S. verfasserin aut Sexing of farmed immature beluga (Huso huso) using steroid hormone levels as indicators 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In order to avoid the invasiveness of sexing associated with biopsy in beluga (Huso huso), we explored the possibilities of using sex steroid levels to determine the sex of farmed immature fish. Belugas were selected randomly from 2-, 4- and 5-year-old stocks, cultured under the same environmental and feeding regimes. Conventional methods of sexing by biopsy and histological observation were used to determine the sex and gonadal stage, while enzyme-linked immunosorbent assay was employed to measure the levels of testosterone (T) and 17β-estradiol ($ E_{2} $) in serum. All fish had differentiated gonads, and males and females could be distinguished microscopically in all age groups. T levels differed significantly between males and females but made for poor predictors of sex due to the substantial overlap in ranges of T levels in both sexes. There was no significant difference in $ E_{2} $ levels between males and females. When calculating the T/$ E_{2} $ ratios (TER), a clear separation was obtained for 5-year-old fish, ratios over 40 predicting male and those below 40 predicting female phenotypes. The study demonstrated that the TER can be used as an effective indicator to separate males and females in cultured immature 5-year-old beluga. Beluga (dpeaa)DE-He213 Sexing (dpeaa)DE-He213 Aquaculture (dpeaa)DE-He213 Sex steroid (dpeaa)DE-He213 Oogenesis (dpeaa)DE-He213 Spermatogenesis (dpeaa)DE-He213 Mojazi Amiri, B. verfasserin aut Nazeri, M. R. verfasserin aut Mirvaghefi, A. R. verfasserin aut Enthalten in Comparative haematology international London : Springer, 1991 23(2013), 3 vom: 10. Jan., Seite 631-635 (DE-627)559430590 (DE-600)2413027-8 1433-2973 nnns volume:23 year:2013 number:3 day:10 month:01 pages:631-635 https://dx.doi.org/10.1007/s00580-012-1662-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_120 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 23 2013 3 10 01 631-635 |
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10.1007/s00580-012-1662-8 doi (DE-627)SPR007225105 (SPR)s00580-012-1662-8-e DE-627 ger DE-627 rakwb eng 610 ASE 610 ASE Nazeri, S. verfasserin aut Sexing of farmed immature beluga (Huso huso) using steroid hormone levels as indicators 2013 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract In order to avoid the invasiveness of sexing associated with biopsy in beluga (Huso huso), we explored the possibilities of using sex steroid levels to determine the sex of farmed immature fish. Belugas were selected randomly from 2-, 4- and 5-year-old stocks, cultured under the same environmental and feeding regimes. Conventional methods of sexing by biopsy and histological observation were used to determine the sex and gonadal stage, while enzyme-linked immunosorbent assay was employed to measure the levels of testosterone (T) and 17β-estradiol ($ E_{2} $) in serum. All fish had differentiated gonads, and males and females could be distinguished microscopically in all age groups. T levels differed significantly between males and females but made for poor predictors of sex due to the substantial overlap in ranges of T levels in both sexes. There was no significant difference in $ E_{2} $ levels between males and females. When calculating the T/$ E_{2} $ ratios (TER), a clear separation was obtained for 5-year-old fish, ratios over 40 predicting male and those below 40 predicting female phenotypes. The study demonstrated that the TER can be used as an effective indicator to separate males and females in cultured immature 5-year-old beluga. Beluga (dpeaa)DE-He213 Sexing (dpeaa)DE-He213 Aquaculture (dpeaa)DE-He213 Sex steroid (dpeaa)DE-He213 Oogenesis (dpeaa)DE-He213 Spermatogenesis (dpeaa)DE-He213 Mojazi Amiri, B. verfasserin aut Nazeri, M. R. verfasserin aut Mirvaghefi, A. R. verfasserin aut Enthalten in Comparative haematology international London : Springer, 1991 23(2013), 3 vom: 10. Jan., Seite 631-635 (DE-627)559430590 (DE-600)2413027-8 1433-2973 nnns volume:23 year:2013 number:3 day:10 month:01 pages:631-635 https://dx.doi.org/10.1007/s00580-012-1662-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_120 GBV_ILN_152 GBV_ILN_161 GBV_ILN_171 GBV_ILN_187 GBV_ILN_224 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 AR 23 2013 3 10 01 631-635 |
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Belugas were selected randomly from 2-, 4- and 5-year-old stocks, cultured under the same environmental and feeding regimes. Conventional methods of sexing by biopsy and histological observation were used to determine the sex and gonadal stage, while enzyme-linked immunosorbent assay was employed to measure the levels of testosterone (T) and 17β-estradiol ($ E_{2} $) in serum. All fish had differentiated gonads, and males and females could be distinguished microscopically in all age groups. T levels differed significantly between males and females but made for poor predictors of sex due to the substantial overlap in ranges of T levels in both sexes. There was no significant difference in $ E_{2} $ levels between males and females. When calculating the T/$ E_{2} $ ratios (TER), a clear separation was obtained for 5-year-old fish, ratios over 40 predicting male and those below 40 predicting female phenotypes. 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sexing of farmed immature beluga (huso huso) using steroid hormone levels as indicators |
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Sexing of farmed immature beluga (Huso huso) using steroid hormone levels as indicators |
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Abstract In order to avoid the invasiveness of sexing associated with biopsy in beluga (Huso huso), we explored the possibilities of using sex steroid levels to determine the sex of farmed immature fish. Belugas were selected randomly from 2-, 4- and 5-year-old stocks, cultured under the same environmental and feeding regimes. Conventional methods of sexing by biopsy and histological observation were used to determine the sex and gonadal stage, while enzyme-linked immunosorbent assay was employed to measure the levels of testosterone (T) and 17β-estradiol ($ E_{2} $) in serum. All fish had differentiated gonads, and males and females could be distinguished microscopically in all age groups. T levels differed significantly between males and females but made for poor predictors of sex due to the substantial overlap in ranges of T levels in both sexes. There was no significant difference in $ E_{2} $ levels between males and females. When calculating the T/$ E_{2} $ ratios (TER), a clear separation was obtained for 5-year-old fish, ratios over 40 predicting male and those below 40 predicting female phenotypes. The study demonstrated that the TER can be used as an effective indicator to separate males and females in cultured immature 5-year-old beluga. |
| abstractGer |
Abstract In order to avoid the invasiveness of sexing associated with biopsy in beluga (Huso huso), we explored the possibilities of using sex steroid levels to determine the sex of farmed immature fish. Belugas were selected randomly from 2-, 4- and 5-year-old stocks, cultured under the same environmental and feeding regimes. Conventional methods of sexing by biopsy and histological observation were used to determine the sex and gonadal stage, while enzyme-linked immunosorbent assay was employed to measure the levels of testosterone (T) and 17β-estradiol ($ E_{2} $) in serum. All fish had differentiated gonads, and males and females could be distinguished microscopically in all age groups. T levels differed significantly between males and females but made for poor predictors of sex due to the substantial overlap in ranges of T levels in both sexes. There was no significant difference in $ E_{2} $ levels between males and females. When calculating the T/$ E_{2} $ ratios (TER), a clear separation was obtained for 5-year-old fish, ratios over 40 predicting male and those below 40 predicting female phenotypes. The study demonstrated that the TER can be used as an effective indicator to separate males and females in cultured immature 5-year-old beluga. |
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Abstract In order to avoid the invasiveness of sexing associated with biopsy in beluga (Huso huso), we explored the possibilities of using sex steroid levels to determine the sex of farmed immature fish. Belugas were selected randomly from 2-, 4- and 5-year-old stocks, cultured under the same environmental and feeding regimes. Conventional methods of sexing by biopsy and histological observation were used to determine the sex and gonadal stage, while enzyme-linked immunosorbent assay was employed to measure the levels of testosterone (T) and 17β-estradiol ($ E_{2} $) in serum. All fish had differentiated gonads, and males and females could be distinguished microscopically in all age groups. T levels differed significantly between males and females but made for poor predictors of sex due to the substantial overlap in ranges of T levels in both sexes. There was no significant difference in $ E_{2} $ levels between males and females. When calculating the T/$ E_{2} $ ratios (TER), a clear separation was obtained for 5-year-old fish, ratios over 40 predicting male and those below 40 predicting female phenotypes. The study demonstrated that the TER can be used as an effective indicator to separate males and females in cultured immature 5-year-old beluga. |
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