EsturgeonV1, PascalFrancis, Corpus, bibRecord, 000332

Effects of thermal regime on ovarian maturation and plasma sex steroids in farmed white sturgeon, Acipenser transmontanus

Identifieur interne : 000332 ( PascalFrancis/Corpus ); précédent : 000331; suivant : 000333

Effects of thermal regime on ovarian maturation and plasma sex steroids in farmed white sturgeon, Acipenser transmontanus

Auteurs : Molly A. H. Webb ; Joel P. Van Eenennaam ; Grant W. Feist ; Javier Linares-Casenave ; Martin S. Fitzpatrick ; Carl B. Schreck ; Serge I. Doroshov A

Source :

Aquaculture : (Amsterdam) [ 0044-8486 ] ; 2001.

RBID : Pascal:02-0097666

Descripteurs français

Pascal (Inist)
- Variation saisonnière, Température, Timing, Transfert, Eau froide, Maturation oeuf, Ovocyte, Hormone stéroïde sexuelle, Marqueur biologique, Développement, Ovaire, Animal élevage, Acipenser transmontanus, Acipenseridae.

English descriptors

KwdEn :
- Acipenser transmontanus, Biological marker, Cold water, Development, Farming animal, Oocyte, Oocyte maturation, Ovary, Seasonal variation, Sex steroid hormone, Temperature, Timing, Transfer.

Abstract

Recently, commercial aquaculture farms in Northern California have exposed gravid, cultured white sturgeon females to cold water (12 ± 1°C) throughout the late phase of vitellogenesis and ovarian follicle maturation resulting in improved ovulation rates and egg quality. However, the optimum timing for transfer of broodfish to the cold water and the capacity of transferred broodfish to maintain reproductive competence over an extended time in cold water had not been evaluated. Gravid white sturgeon females that have been raised at water temperatures of 16-20°C were transported to either cold water (12 ± 1°C; Group 1) in November 1997 or maintained in ambient water temperatures (10-19°C; Group 2) until early spring. In March 1998, half of the fish in Group 2 had regressed ovaries, but the remaining females had intact ovarian follicles and were transported to the cold water. Ovarian follicles and blood were collected from females until they reached the stage of spawning readiness (determined by germinal vesicle position and an oocyte maturation assay) or underwent ovarian regression. Exposure of gravid sturgeon females to ambient water temperatures (14.5 ± 2.3°C, mean ± S.D.) from October to March led to a decrease in plasma sex steroids and a high incidence of ovarian regression in fish with a more advanced stage of oocyte development. Transfer of females with intact ovarian follicles to cold water (12 ± 1°C) in the fall or early spring resulted in normal ovarian development in the majority of females. Holding females in cold water does not seem to override their endogenous reproductive rhythms but extends their capacity to maintain oocyte maturational competence over a longer period of time. A temperature-sensitive phase in ovarian development may occur during the transition from vitellogenic growth to oocyte maturation, and the degree and timing of sensitivity to environmental temperature are dependent on the female's endogenous reproductive rhythm.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A11	`01`	`1`		`@1 WEBB (Molly A. H.)`
A11	`02`	`1`		`@1 VAN EENENNAAM (Joel P.)`
A11	`03`	`1`		`@1 FEIST (Grant W.)`
A11	`04`	`1`		`@1 LINARES-CASENAVE (Javier)`
A11	`05`	`1`		`@1 FITZPATRICK (Martin S.)`
A11	`06`	`1`		`@1 SCHRECK (Carl B.)`
A11	`07`	`1`		`@1 A (Serge I. Doroshov)`
A14	`01`			`@1 Department of Animal Science, One Shields Avenue, University of California @2 Davis, CA 95616 @3 USA @Z 1 aut. @Z 2 aut. @Z 4 aut. @Z 7 aut.`
A14	`02`			`@1 Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University @2 Corvallis, OR 97331 @3 USA @Z 3 aut. @Z 5 aut.`
A14	`03`			`@1 Biological Resources Division, US Geological Survey, Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University @2 Corvallis, OR 97331 @3 USA @Z 6 aut.`
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A21				`@1 2001`
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C01	`01`		`ENG`	@0 Recently, commercial aquaculture farms in Northern California have exposed gravid, cultured white sturgeon females to cold water (12 ± 1°C) throughout the late phase of vitellogenesis and ovarian follicle maturation resulting in improved ovulation rates and egg quality. However, the optimum timing for transfer of broodfish to the cold water and the capacity of transferred broodfish to maintain reproductive competence over an extended time in cold water had not been evaluated. Gravid white sturgeon females that have been raised at water temperatures of 16-20°C were transported to either cold water (12 ± 1°C; Group 1) in November 1997 or maintained in ambient water temperatures (10-19°C; Group 2) until early spring. In March 1998, half of the fish in Group 2 had regressed ovaries, but the remaining females had intact ovarian follicles and were transported to the cold water. Ovarian follicles and blood were collected from females until they reached the stage of spawning readiness (determined by germinal vesicle position and an oocyte maturation assay) or underwent ovarian regression. Exposure of gravid sturgeon females to ambient water temperatures (14.5 ± 2.3°C, mean ± S.D.) from October to March led to a decrease in plasma sex steroids and a high incidence of ovarian regression in fish with a more advanced stage of oocyte development. Transfer of females with intact ovarian follicles to cold water (12 ± 1°C) in the fall or early spring resulted in normal ovarian development in the majority of females. Holding females in cold water does not seem to override their endogenous reproductive rhythms but extends their capacity to maintain oocyte maturational competence over a longer period of time. A temperature-sensitive phase in ovarian development may occur during the transition from vitellogenic growth to oocyte maturation, and the degree and timing of sensitivity to environmental temperature are dependent on the female's endogenous reproductive rhythm.
C02	`01`	`X`		`@0 002A36B03A`
C03	`01`	`X`	`FRE`	`@0 Variation saisonnière @5 01`
C03	`01`	`X`	`ENG`	`@0 Seasonal variation @5 01`
C03	`01`	`X`	`SPA`	`@0 Variación estacional @5 01`
C03	`02`	`X`	`FRE`	`@0 Température @5 02`
C03	`02`	`X`	`ENG`	`@0 Temperature @5 02`
C03	`02`	`X`	`SPA`	`@0 Temperatura @5 02`
C03	`03`	`X`	`FRE`	`@0 Timing @5 03`
C03	`03`	`X`	`ENG`	`@0 Timing @5 03`
C03	`03`	`X`	`SPA`	`@0 Timing @5 03`
C03	`04`	`X`	`FRE`	`@0 Transfert @5 04`
C03	`04`	`X`	`ENG`	`@0 Transfer @5 04`
C03	`04`	`X`	`SPA`	`@0 Transferencia @5 04`
C03	`05`	`X`	`FRE`	`@0 Eau froide @5 05`
C03	`05`	`X`	`ENG`	`@0 Cold water @5 05`
C03	`05`	`X`	`SPA`	`@0 Agua fría @5 05`
C03	`06`	`X`	`FRE`	`@0 Maturation oeuf @5 06`
C03	`06`	`X`	`ENG`	`@0 Oocyte maturation @5 06`
C03	`06`	`X`	`SPA`	`@0 Maduración huevo @5 06`
C03	`07`	`X`	`FRE`	`@0 Ovocyte @5 07`
C03	`07`	`X`	`ENG`	`@0 Oocyte @5 07`
C03	`07`	`X`	`SPA`	`@0 Ovocito @5 07`
C03	`08`	`X`	`FRE`	`@0 Hormone stéroïde sexuelle @5 08`
C03	`08`	`X`	`ENG`	`@0 Sex steroid hormone @5 08`
C03	`08`	`X`	`SPA`	`@0 Hormona esteroide sexual @5 08`
C03	`09`	`X`	`FRE`	`@0 Marqueur biologique @5 09`
C03	`09`	`X`	`ENG`	`@0 Biological marker @5 09`
C03	`09`	`X`	`SPA`	`@0 Marcador biológico @5 09`
C03	`10`	`X`	`FRE`	`@0 Développement @5 10`
C03	`10`	`X`	`ENG`	`@0 Development @5 10`
C03	`10`	`X`	`SPA`	`@0 Desarrollo @5 10`
C03	`11`	`X`	`FRE`	`@0 Ovaire @5 11`
C03	`11`	`X`	`ENG`	`@0 Ovary @5 11`
C03	`11`	`X`	`SPA`	`@0 Ovario @5 11`
C03	`12`	`X`	`FRE`	`@0 Animal élevage @5 12`
C03	`12`	`X`	`ENG`	`@0 Farming animal @5 12`
C03	`12`	`X`	`SPA`	`@0 Animal cría @5 12`
C03	`13`	`X`	`FRE`	`@0 Acipenser transmontanus @2 NS @5 55`
C03	`13`	`X`	`ENG`	`@0 Acipenser transmontanus @2 NS @5 55`
C03	`13`	`X`	`SPA`	`@0 Acipenser transmontanus @2 NS @5 55`
C03	`14`	`X`	`FRE`	`@0 Acipenseridae @2 NS @4 INC @5 70`
C07	`01`	`X`	`FRE`	`@0 Milieu eau douce @5 14`
C07	`01`	`X`	`ENG`	`@0 Freshwater environment @5 14`
C07	`01`	`X`	`SPA`	`@0 Medio agua dulce @5 14`
C07	`02`	`X`	`FRE`	`@0 Aquiculture @5 15`
C07	`02`	`X`	`ENG`	`@0 Aquaculture @5 15`
C07	`02`	`X`	`SPA`	`@0 Acuacultura @5 15`
C07	`03`	`X`	`FRE`	`@0 Facteur milieu @5 16`
C07	`03`	`X`	`ENG`	`@0 Environmental factor @5 16`
C07	`03`	`X`	`SPA`	`@0 Factor medio @5 16`
C07	`04`	`X`	`FRE`	`@0 Reproduction @5 17`
C07	`04`	`X`	`ENG`	`@0 Reproduction @5 17`
C07	`04`	`X`	`SPA`	`@0 Reproducción @5 17`
C07	`05`	`X`	`FRE`	`@0 Appareil génital femelle @5 18`
C07	`05`	`X`	`ENG`	`@0 Female genital system @5 18`
C07	`05`	`X`	`SPA`	`@0 Aparato genital hembra @5 18`
C07	`06`	`X`	`FRE`	`@0 Cellule germinale @5 19`
C07	`06`	`X`	`ENG`	`@0 Germinal cell @5 19`
C07	`06`	`X`	`SPA`	`@0 Célula germinal @5 19`
C07	`07`	`X`	`FRE`	`@0 Pisces @2 NS`
C07	`07`	`X`	`ENG`	`@0 Pisces @2 NS`
C07	`07`	`X`	`SPA`	`@0 Pisces @2 NS`
C07	`08`	`X`	`FRE`	`@0 Vertebrata @2 NS`
C07	`08`	`X`	`ENG`	`@0 Vertebrata @2 NS`
C07	`08`	`X`	`SPA`	`@0 Vertebrata @2 NS`
N21				`@1 049`

Format Inist (serveur)

NO :	PASCAL 02-0097666 INIST
ET :	Effects of thermal regime on ovarian maturation and plasma sex steroids in farmed white sturgeon, Acipenser transmontanus
AU :	WEBB (Molly A. H.); VAN EENENNAAM (Joel P.); FEIST (Grant W.); LINARES-CASENAVE (Javier); FITZPATRICK (Martin S.); SCHRECK (Carl B.); A (Serge I. Doroshov)
AF :	Department of Animal Science, One Shields Avenue, University of California/Davis, CA 95616/Etats-Unis (1 aut., 2 aut., 4 aut., 7 aut.); Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University/Corvallis, OR 97331/Etats-Unis (3 aut., 5 aut.); Biological Resources Division, US Geological Survey, Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University/Corvallis, OR 97331/Etats-Unis (6 aut.)
DT :	Publication en série; Niveau analytique
SO :	Aquaculture : (Amsterdam); ISSN 0044-8486; Coden AQCLAL; Pays-Bas; Da. 2001; Vol. 201; No. 1-2; Pp. 137-151; Bibl. 1 p.1/2
LA :	Anglais
EA :	Recently, commercial aquaculture farms in Northern California have exposed gravid, cultured white sturgeon females to cold water (12 ± 1°C) throughout the late phase of vitellogenesis and ovarian follicle maturation resulting in improved ovulation rates and egg quality. However, the optimum timing for transfer of broodfish to the cold water and the capacity of transferred broodfish to maintain reproductive competence over an extended time in cold water had not been evaluated. Gravid white sturgeon females that have been raised at water temperatures of 16-20°C were transported to either cold water (12 ± 1°C; Group 1) in November 1997 or maintained in ambient water temperatures (10-19°C; Group 2) until early spring. In March 1998, half of the fish in Group 2 had regressed ovaries, but the remaining females had intact ovarian follicles and were transported to the cold water. Ovarian follicles and blood were collected from females until they reached the stage of spawning readiness (determined by germinal vesicle position and an oocyte maturation assay) or underwent ovarian regression. Exposure of gravid sturgeon females to ambient water temperatures (14.5 ± 2.3°C, mean ± S.D.) from October to March led to a decrease in plasma sex steroids and a high incidence of ovarian regression in fish with a more advanced stage of oocyte development. Transfer of females with intact ovarian follicles to cold water (12 ± 1°C) in the fall or early spring resulted in normal ovarian development in the majority of females. Holding females in cold water does not seem to override their endogenous reproductive rhythms but extends their capacity to maintain oocyte maturational competence over a longer period of time. A temperature-sensitive phase in ovarian development may occur during the transition from vitellogenic growth to oocyte maturation, and the degree and timing of sensitivity to environmental temperature are dependent on the female's endogenous reproductive rhythm.
CC :	002A36B03A
FD :	Variation saisonnière; Température; Timing; Transfert; Eau froide; Maturation oeuf; Ovocyte; Hormone stéroïde sexuelle; Marqueur biologique; Développement; Ovaire; Animal élevage; Acipenser transmontanus; Acipenseridae
FG :	Milieu eau douce; Aquiculture; Facteur milieu; Reproduction; Appareil génital femelle; Cellule germinale; Pisces; Vertebrata
ED :	Seasonal variation; Temperature; Timing; Transfer; Cold water; Oocyte maturation; Oocyte; Sex steroid hormone; Biological marker; Development; Ovary; Farming animal; Acipenser transmontanus
EG :	Freshwater environment; Aquaculture; Environmental factor; Reproduction; Female genital system; Germinal cell; Pisces; Vertebrata
SD :	Variación estacional; Temperatura; Timing; Transferencia; Agua fría; Maduración huevo; Ovocito; Hormona esteroide sexual; Marcador biológico; Desarrollo; Ovario; Animal cría; Acipenser transmontanus
LO :	INIST-15964.354000096184150100
ID :	02-0097666

Links to Exploration step

Pascal:02-0097666

Le document en format XML

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<author><name sortKey="Linares Casenave, Javier" sort="Linares Casenave, Javier" uniqKey="Linares Casenave J" first="Javier" last="Linares-Casenave">Javier Linares-Casenave</name>
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<author><name sortKey="A, Serge I Doroshov" sort="A, Serge I Doroshov" uniqKey="A S" first="Serge I. Doroshov" last="A">Serge I. Doroshov A</name>
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<series><title level="j" type="main">Aquaculture : (Amsterdam)</title>
<title level="j" type="abbreviated">Aquaculture : (Amst.)</title>
<idno type="ISSN">0044-8486</idno>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acipenser transmontanus</term>
<term>Biological marker</term>
<term>Cold water</term>
<term>Development</term>
<term>Farming animal</term>
<term>Oocyte</term>
<term>Oocyte maturation</term>
<term>Ovary</term>
<term>Seasonal variation</term>
<term>Sex steroid hormone</term>
<term>Temperature</term>
<term>Timing</term>
<term>Transfer</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Variation saisonnière</term>
<term>Température</term>
<term>Timing</term>
<term>Transfert</term>
<term>Eau froide</term>
<term>Maturation oeuf</term>
<term>Ovocyte</term>
<term>Hormone stéroïde sexuelle</term>
<term>Marqueur biologique</term>
<term>Développement</term>
<term>Ovaire</term>
<term>Animal élevage</term>
<term>Acipenser transmontanus</term>
<term>Acipenseridae</term>
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<front><div type="abstract" xml:lang="en">Recently, commercial aquaculture farms in Northern California have exposed gravid, cultured white sturgeon females to cold water (12 ± 1°C) throughout the late phase of vitellogenesis and ovarian follicle maturation resulting in improved ovulation rates and egg quality. However, the optimum timing for transfer of broodfish to the cold water and the capacity of transferred broodfish to maintain reproductive competence over an extended time in cold water had not been evaluated. Gravid white sturgeon females that have been raised at water temperatures of 16-20°C were transported to either cold water (12 ± 1°C; Group 1) in November 1997 or maintained in ambient water temperatures (10-19°C; Group 2) until early spring. In March 1998, half of the fish in Group 2 had regressed ovaries, but the remaining females had intact ovarian follicles and were transported to the cold water. Ovarian follicles and blood were collected from females until they reached the stage of spawning readiness (determined by germinal vesicle position and an oocyte maturation assay) or underwent ovarian regression. Exposure of gravid sturgeon females to ambient water temperatures (14.5 ± 2.3°C, mean ± S.D.) from October to March led to a decrease in plasma sex steroids and a high incidence of ovarian regression in fish with a more advanced stage of oocyte development. Transfer of females with intact ovarian follicles to cold water (12 ± 1°C) in the fall or early spring resulted in normal ovarian development in the majority of females. Holding females in cold water does not seem to override their endogenous reproductive rhythms but extends their capacity to maintain oocyte maturational competence over a longer period of time. A temperature-sensitive phase in ovarian development may occur during the transition from vitellogenic growth to oocyte maturation, and the degree and timing of sensitivity to environmental temperature are dependent on the female's endogenous reproductive rhythm.</div>
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<fA06><s2>1-2</s2>
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<fA08 i1="01" i2="1" l="ENG"><s1>Effects of thermal regime on ovarian maturation and plasma sex steroids in farmed white sturgeon, Acipenser transmontanus</s1>
</fA08>
<fA11 i1="01" i2="1"><s1>WEBB (Molly A. H.)</s1>
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<fA11 i1="02" i2="1"><s1>VAN EENENNAAM (Joel P.)</s1>
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<fA11 i1="03" i2="1"><s1>FEIST (Grant W.)</s1>
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<fA11 i1="04" i2="1"><s1>LINARES-CASENAVE (Javier)</s1>
</fA11>
<fA11 i1="05" i2="1"><s1>FITZPATRICK (Martin S.)</s1>
</fA11>
<fA11 i1="06" i2="1"><s1>SCHRECK (Carl B.)</s1>
</fA11>
<fA11 i1="07" i2="1"><s1>A (Serge I. Doroshov)</s1>
</fA11>
<fA14 i1="01"><s1>Department of Animal Science, One Shields Avenue, University of California</s1>
<s2>Davis, CA 95616</s2>
<s3>USA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>7 aut.</sZ>
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<fA14 i1="02"><s1>Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University</s1>
<s2>Corvallis, OR 97331</s2>
<s3>USA</s3>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
</fA14>
<fA14 i1="03"><s1>Biological Resources Division, US Geological Survey, Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University</s1>
<s2>Corvallis, OR 97331</s2>
<s3>USA</s3>
<sZ>6 aut.</sZ>
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<fA20><s1>137-151</s1>
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<fA21><s1>2001</s1>
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<fA23 i1="01"><s0>ENG</s0>
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<fC01 i1="01" l="ENG"><s0>Recently, commercial aquaculture farms in Northern California have exposed gravid, cultured white sturgeon females to cold water (12 ± 1°C) throughout the late phase of vitellogenesis and ovarian follicle maturation resulting in improved ovulation rates and egg quality. However, the optimum timing for transfer of broodfish to the cold water and the capacity of transferred broodfish to maintain reproductive competence over an extended time in cold water had not been evaluated. Gravid white sturgeon females that have been raised at water temperatures of 16-20°C were transported to either cold water (12 ± 1°C; Group 1) in November 1997 or maintained in ambient water temperatures (10-19°C; Group 2) until early spring. In March 1998, half of the fish in Group 2 had regressed ovaries, but the remaining females had intact ovarian follicles and were transported to the cold water. Ovarian follicles and blood were collected from females until they reached the stage of spawning readiness (determined by germinal vesicle position and an oocyte maturation assay) or underwent ovarian regression. Exposure of gravid sturgeon females to ambient water temperatures (14.5 ± 2.3°C, mean ± S.D.) from October to March led to a decrease in plasma sex steroids and a high incidence of ovarian regression in fish with a more advanced stage of oocyte development. Transfer of females with intact ovarian follicles to cold water (12 ± 1°C) in the fall or early spring resulted in normal ovarian development in the majority of females. Holding females in cold water does not seem to override their endogenous reproductive rhythms but extends their capacity to maintain oocyte maturational competence over a longer period of time. A temperature-sensitive phase in ovarian development may occur during the transition from vitellogenic growth to oocyte maturation, and the degree and timing of sensitivity to environmental temperature are dependent on the female's endogenous reproductive rhythm.</s0>
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<fC02 i1="01" i2="X"><s0>002A36B03A</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Variation saisonnière</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Seasonal variation</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Variación estacional</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Température</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Temperature</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Temperatura</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Timing</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Timing</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Timing</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Transfert</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Transfer</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Transferencia</s0>
<s5>04</s5>
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<fC03 i1="05" i2="X" l="FRE"><s0>Eau froide</s0>
<s5>05</s5>
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<fC03 i1="05" i2="X" l="ENG"><s0>Cold water</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Agua fría</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Maturation oeuf</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Oocyte maturation</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Maduración huevo</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Ovocyte</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Oocyte</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Ovocito</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Hormone stéroïde sexuelle</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Sex steroid hormone</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Hormona esteroide sexual</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Marqueur biologique</s0>
<s5>09</s5>
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<s5>09</s5>
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<fC03 i1="09" i2="X" l="SPA"><s0>Marcador biológico</s0>
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<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Desarrollo</s0>
<s5>10</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Ovaire</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Ovary</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Ovario</s0>
<s5>11</s5>
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<fC03 i1="12" i2="X" l="FRE"><s0>Animal élevage</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>Farming animal</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>Animal cría</s0>
<s5>12</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Acipenser transmontanus</s0>
<s2>NS</s2>
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</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Acipenser transmontanus</s0>
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</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Acipenser transmontanus</s0>
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<s5>55</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Acipenseridae</s0>
<s2>NS</s2>
<s4>INC</s4>
<s5>70</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Milieu eau douce</s0>
<s5>14</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Freshwater environment</s0>
<s5>14</s5>
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<s5>14</s5>
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<s5>16</s5>
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<fC07 i1="03" i2="X" l="SPA"><s0>Factor medio</s0>
<s5>16</s5>
</fC07>
<fC07 i1="04" i2="X" l="FRE"><s0>Reproduction</s0>
<s5>17</s5>
</fC07>
<fC07 i1="04" i2="X" l="ENG"><s0>Reproduction</s0>
<s5>17</s5>
</fC07>
<fC07 i1="04" i2="X" l="SPA"><s0>Reproducción</s0>
<s5>17</s5>
</fC07>
<fC07 i1="05" i2="X" l="FRE"><s0>Appareil génital femelle</s0>
<s5>18</s5>
</fC07>
<fC07 i1="05" i2="X" l="ENG"><s0>Female genital system</s0>
<s5>18</s5>
</fC07>
<fC07 i1="05" i2="X" l="SPA"><s0>Aparato genital hembra</s0>
<s5>18</s5>
</fC07>
<fC07 i1="06" i2="X" l="FRE"><s0>Cellule germinale</s0>
<s5>19</s5>
</fC07>
<fC07 i1="06" i2="X" l="ENG"><s0>Germinal cell</s0>
<s5>19</s5>
</fC07>
<fC07 i1="06" i2="X" l="SPA"><s0>Célula germinal</s0>
<s5>19</s5>
</fC07>
<fC07 i1="07" i2="X" l="FRE"><s0>Pisces</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="07" i2="X" l="ENG"><s0>Pisces</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="07" i2="X" l="SPA"><s0>Pisces</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="08" i2="X" l="FRE"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="08" i2="X" l="ENG"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="08" i2="X" l="SPA"><s0>Vertebrata</s0>
<s2>NS</s2>
</fC07>
<fN21><s1>049</s1>
</fN21>
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<server><NO>PASCAL 02-0097666 INIST</NO>
<ET>Effects of thermal regime on ovarian maturation and plasma sex steroids in farmed white sturgeon, Acipenser transmontanus</ET>
<AU>WEBB (Molly A. H.); VAN EENENNAAM (Joel P.); FEIST (Grant W.); LINARES-CASENAVE (Javier); FITZPATRICK (Martin S.); SCHRECK (Carl B.); A (Serge I. Doroshov)</AU>
<AF>Department of Animal Science, One Shields Avenue, University of California/Davis, CA 95616/Etats-Unis (1 aut., 2 aut., 4 aut., 7 aut.); Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University/Corvallis, OR 97331/Etats-Unis (3 aut., 5 aut.); Biological Resources Division, US Geological Survey, Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University/Corvallis, OR 97331/Etats-Unis (6 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Aquaculture : (Amsterdam); ISSN 0044-8486; Coden AQCLAL; Pays-Bas; Da. 2001; Vol. 201; No. 1-2; Pp. 137-151; Bibl. 1 p.1/2</SO>
<LA>Anglais</LA>
<EA>Recently, commercial aquaculture farms in Northern California have exposed gravid, cultured white sturgeon females to cold water (12 ± 1°C) throughout the late phase of vitellogenesis and ovarian follicle maturation resulting in improved ovulation rates and egg quality. However, the optimum timing for transfer of broodfish to the cold water and the capacity of transferred broodfish to maintain reproductive competence over an extended time in cold water had not been evaluated. Gravid white sturgeon females that have been raised at water temperatures of 16-20°C were transported to either cold water (12 ± 1°C; Group 1) in November 1997 or maintained in ambient water temperatures (10-19°C; Group 2) until early spring. In March 1998, half of the fish in Group 2 had regressed ovaries, but the remaining females had intact ovarian follicles and were transported to the cold water. Ovarian follicles and blood were collected from females until they reached the stage of spawning readiness (determined by germinal vesicle position and an oocyte maturation assay) or underwent ovarian regression. Exposure of gravid sturgeon females to ambient water temperatures (14.5 ± 2.3°C, mean ± S.D.) from October to March led to a decrease in plasma sex steroids and a high incidence of ovarian regression in fish with a more advanced stage of oocyte development. Transfer of females with intact ovarian follicles to cold water (12 ± 1°C) in the fall or early spring resulted in normal ovarian development in the majority of females. Holding females in cold water does not seem to override their endogenous reproductive rhythms but extends their capacity to maintain oocyte maturational competence over a longer period of time. A temperature-sensitive phase in ovarian development may occur during the transition from vitellogenic growth to oocyte maturation, and the degree and timing of sensitivity to environmental temperature are dependent on the female's endogenous reproductive rhythm.</EA>
<CC>002A36B03A</CC>
<FD>Variation saisonnière; Température; Timing; Transfert; Eau froide; Maturation oeuf; Ovocyte; Hormone stéroïde sexuelle; Marqueur biologique; Développement; Ovaire; Animal élevage; Acipenser transmontanus; Acipenseridae</FD>
<FG>Milieu eau douce; Aquiculture; Facteur milieu; Reproduction; Appareil génital femelle; Cellule germinale; Pisces; Vertebrata</FG>
<ED>Seasonal variation; Temperature; Timing; Transfer; Cold water; Oocyte maturation; Oocyte; Sex steroid hormone; Biological marker; Development; Ovary; Farming animal; Acipenser transmontanus</ED>
<EG>Freshwater environment; Aquaculture; Environmental factor; Reproduction; Female genital system; Germinal cell; Pisces; Vertebrata</EG>
<SD>Variación estacional; Temperatura; Timing; Transferencia; Agua fría; Maduración huevo; Ovocito; Hormona esteroide sexual; Marcador biológico; Desarrollo; Ovario; Animal cría; Acipenser transmontanus</SD>
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Effects of thermal regime on ovarian maturation and plasma sex steroids in farmed white sturgeon, Acipenser transmontanus

Effects of thermal regime on ovarian maturation and plasma sex steroids in farmed white sturgeon, Acipenser transmontanus

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