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The relationship of the cryoprotectants methanol and dimethyl sulfoxide and hyperosmotic extenders on sperm cryopreservation of two North-American sturgeon species

Identifieur interne : 001016 ( Main/Merge ); précédent : 001015; suivant : 001017

The relationship of the cryoprotectants methanol and dimethyl sulfoxide and hyperosmotic extenders on sperm cryopreservation of two North-American sturgeon species

Auteurs : Akos Horvath [États-Unis, Hongrie] ; William R. Wayman [États-Unis] ; Béla Urbanyi [Hongrie] ; Kent M. Ware [États-Unis] ; Jan C. Dean [États-Unis] ; Terrence R. Tiersch [États-Unis]

Source :

Aquaculture : (Amsterdam) [ 0044-8486 ] ; 2005.

RBID : Pascal:05-0304219

Descripteurs français

Pascal (Inist)
- Spermatozoïde, Cryoconservation, Amérique du Nord, Aquiculture, Acipenser sturio.
Wicri :
- topic : Aquiculture.

English descriptors

KwdEn :
- Acipenser sturio, Aquaculture, Cryopreservation, North America, Spermatozoa.

Abstract

Successful sperm cryopreservation techniques have been developed for Eurasian sturgeon species; however, there is little information available on these techniques for North-American species. In this study, two sets of sperm cryopreservation experiments were carried out on the endangered shortnose sturgeon (Acipenser brevirostrum). In the first set, the cryoprotectants methanol (MeOH) and dimethyl sulfoxide (DMSO) were investigated using three concentrations (5%, 10% and 15%). The highest post-thaw motility was found using 5% DMSO (26±13%) while the use of 5% MeOH resulted in the highest rates for fertilization at the 4-cell stage (40±15%), neurulation (38±13%) and hatching (32±12%). In the second set, the Original Tsvetkova's extender (OT), Modified Tsvetkova's extender (MT) and modified Hanks' balanced salt solution (mHBSS) were investigated in combination with three MeOH concentrations. The highest post-thaw motility (18±10%), fertilization (18±11%) and hatching rates (17±12%) were observed with MT extender used in combination with 5% MeOH. In another set of experiments, the effects of two extenders (MT and mHBSS) and two concentrations of MeOH were investigated for sperm cryopreservation of pallid sturgeon (Scaphyrinchus albus). The highest post-thaw motility (70±10%) was observed using MT and 10% MeOH while MT and 5% MeOH yielded the highest rates of fertilization (88±6%) and hatching (73 ±14%). In general we conclude that although hyperosmotic conditions of extenders and cryoprotectants result in higher post-thaw motility, they seem to reduce the fertilizing ability of the sperm.

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Le document en format XML

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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">The relationship of the cryoprotectants methanol and dimethyl sulfoxide and hyperosmotic extenders on sperm cryopreservation of two North-American sturgeon species</title>
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<author><name sortKey="Ware, Kent M" sort="Ware, Kent M" uniqKey="Ware K" first="Kent M." last="Ware">Kent M. Ware</name>
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<author><name sortKey="Tiersch, Terrence R" sort="Tiersch, Terrence R" uniqKey="Tiersch T" first="Terrence R." last="Tiersch">Terrence R. Tiersch</name>
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<series><title level="j" type="main">Aquaculture : (Amsterdam)</title>
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<term>Amérique du Nord</term>
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<front><div type="abstract" xml:lang="en">Successful sperm cryopreservation techniques have been developed for Eurasian sturgeon species; however, there is little information available on these techniques for North-American species. In this study, two sets of sperm cryopreservation experiments were carried out on the endangered shortnose sturgeon (Acipenser brevirostrum). In the first set, the cryoprotectants methanol (MeOH) and dimethyl sulfoxide (DMSO) were investigated using three concentrations (5%, 10% and 15%). The highest post-thaw motility was found using 5% DMSO (26±13%) while the use of 5% MeOH resulted in the highest rates for fertilization at the 4-cell stage (40±15%), neurulation (38±13%) and hatching (32±12%). In the second set, the Original Tsvetkova's extender (OT), Modified Tsvetkova's extender (MT) and modified Hanks' balanced salt solution (mHBSS) were investigated in combination with three MeOH concentrations. The highest post-thaw motility (18±10%), fertilization (18±11%) and hatching rates (17±12%) were observed with MT extender used in combination with 5% MeOH. In another set of experiments, the effects of two extenders (MT and mHBSS) and two concentrations of MeOH were investigated for sperm cryopreservation of pallid sturgeon (Scaphyrinchus albus). The highest post-thaw motility (70±10%) was observed using MT and 10% MeOH while MT and 5% MeOH yielded the highest rates of fertilization (88±6%) and hatching (73 ±14%). In general we conclude that although hyperosmotic conditions of extenders and cryoprotectants result in higher post-thaw motility, they seem to reduce the fertilizing ability of the sperm.</div>
</front>
</TEI>
<affiliations><list><country><li>Hongrie</li>
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<name sortKey="Ware, Kent M" sort="Ware, Kent M" uniqKey="Ware K" first="Kent M." last="Ware">Kent M. Ware</name>
<name sortKey="Wayman, William R" sort="Wayman, William R" uniqKey="Wayman W" first="William R." last="Wayman">William R. Wayman</name>
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The relationship of the cryoprotectants methanol and dimethyl sulfoxide and hyperosmotic extenders on sperm cryopreservation of two North-American sturgeon species

The relationship of the cryoprotectants methanol and dimethyl sulfoxide and hyperosmotic extenders on sperm cryopreservation of two North-American sturgeon species

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

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