The effects of shaded pond on growth performance of Russian sturgeon (Acipenser gueldenstaedtii)
Identifieur interne : 000965 ( Istex/Corpus ); précédent : 000964; suivant : 000966The effects of shaded pond on growth performance of Russian sturgeon (Acipenser gueldenstaedtii)
Auteurs : D. Memi ; E. Ercan ; G. YamanerSource :
- Journal of Applied Ichthyology [ 0175-8659 ] ; 2011-04.
Abstract
The aim of this study was to identify the effects of reduced daylight over shaded ponds on growth during adult rearing of Russian sturgeon (Acipenser gueldenstaedtii). Growth performance was determined as weight gain, condition factor, specific growth rate, and feed conversion ratio using 7+ years old sturgeons. The mean initial weight of fish held in the non‐shaded pond was 3850 g (±780) and in shaded ponds was about 3550 g (±660). The culture period lasted for 1 year (25 September 2007–24 September 2008). For individual monitoring fish were externally marked with T‐Bar Anchor tags. The experimental groups were fed commercial extruded diet (protein content 49–50%, lipid content of 15%), prepared by the Sibal Blacksea Company. The final mean weight of fish held in the non‐shaded pond was found to be 6710 g (±1670) and reached in shaded ponds about 6404 g (±1291). The maximum and minimum individual condition factors were 1.0 and 0.4 in both groups in the 4th period (March–May). The minimum specific growth rates (SGR) were 0.07 (non‐shaded pond) and 0.06 (shaded ponds). These values were observed between January and March (cold water conditions) while the maximum SGR was (0.3) between September and November. The best feed conversion ratio (FCR) was obtained in the shaded ponds with 1.3–1.5 during September–November and March–May, respectively. The mean FCR was around 2.5 in both test groups. During the entire experiment on average light intensity was 70% reduced in the shaded ponds compared to the open pond. The growth performance between the two groups did not differ significantly (P > 0.05). However in the non‐shaded ponds, the colour of the fish was darker when exposed directly to sunlight.
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DOI: 10.1111/j.1439-0426.2011.01732.x
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Yamaner</name><affiliation><mods:affiliation>Fisheries Faculty, Aquaculture Department, Istanbul University, Laleli, Istanbul, Turkey</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Applied Ichthyology</title><idno type="ISSN">0175-8659</idno><idno type="eISSN">1439-0426</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2011-04">2011-04</date><biblScope unit="volume">27</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="571">571</biblScope><biblScope unit="page" to="575">575</biblScope></imprint><idno type="ISSN">0175-8659</idno></series><idno type="istex">ECC37D0CF04DF33017E34A3832CCF43F4207F79F</idno><idno type="DOI">10.1111/j.1439-0426.2011.01732.x</idno><idno type="ArticleID">JAI1732</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0175-8659</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The aim of this study was to identify the effects of reduced daylight over shaded ponds on growth during adult rearing of Russian sturgeon (Acipenser gueldenstaedtii). Growth performance was determined as weight gain, condition factor, specific growth rate, and feed conversion ratio using 7+ years old sturgeons. The mean initial weight of fish held in the non‐shaded pond was 3850 g (±780) and in shaded ponds was about 3550 g (±660). The culture period lasted for 1 year (25 September 2007–24 September 2008). For individual monitoring fish were externally marked with T‐Bar Anchor tags. The experimental groups were fed commercial extruded diet (protein content 49–50%, lipid content of 15%), prepared by the Sibal Blacksea Company. The final mean weight of fish held in the non‐shaded pond was found to be 6710 g (±1670) and reached in shaded ponds about 6404 g (±1291). The maximum and minimum individual condition factors were 1.0 and 0.4 in both groups in the 4th period (March–May). The minimum specific growth rates (SGR) were 0.07 (non‐shaded pond) and 0.06 (shaded ponds). These values were observed between January and March (cold water conditions) while the maximum SGR was (0.3) between September and November. The best feed conversion ratio (FCR) was obtained in the shaded ponds with 1.3–1.5 during September–November and March–May, respectively. The mean FCR was around 2.5 in both test groups. During the entire experiment on average light intensity was 70% reduced in the shaded ponds compared to the open pond. The growth performance between the two groups did not differ significantly (P > 0.05). However in the non‐shaded ponds, the colour of the fish was darker when exposed directly to sunlight.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>D. Memiş</name><affiliations><json:string>Fisheries Faculty, Aquaculture Department, Istanbul University, Laleli, Istanbul, Turkey</json:string></affiliations></json:item><json:item><name>E. Ercan</name></json:item><json:item><name>G. Yamaner</name><affiliations><json:string>Fisheries Faculty, Aquaculture Department, Istanbul University, Laleli, Istanbul, Turkey</json:string></affiliations></json:item></author><articleId><json:string>JAI1732</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>The aim of this study was to identify the effects of reduced daylight over shaded ponds on growth during adult rearing of Russian sturgeon (Acipenser gueldenstaedtii). Growth performance was determined as weight gain, condition factor, specific growth rate, and feed conversion ratio using 7+ years old sturgeons. The mean initial weight of fish held in the non‐shaded pond was 3850 g (±780) and in shaded ponds was about 3550 g (±660). The culture period lasted for 1 year (25 September 2007–24 September 2008). For individual monitoring fish were externally marked with T‐Bar Anchor tags. The experimental groups were fed commercial extruded diet (protein content 49–50%, lipid content of 15%), prepared by the Sibal Blacksea Company. The final mean weight of fish held in the non‐shaded pond was found to be 6710 g (±1670) and reached in shaded ponds about 6404 g (±1291). The maximum and minimum individual condition factors were 1.0 and 0.4 in both groups in the 4th period (March–May). The minimum specific growth rates (SGR) were 0.07 (non‐shaded pond) and 0.06 (shaded ponds). These values were observed between January and March (cold water conditions) while the maximum SGR was (0.3) between September and November. The best feed conversion ratio (FCR) was obtained in the shaded ponds with 1.3–1.5 during September–November and March–May, respectively. The mean FCR was around 2.5 in both test groups. During the entire experiment on average light intensity was 70% reduced in the shaded ponds compared to the open pond. The growth performance between the two groups did not differ significantly (P > 0.05). 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Growth performance was determined as weight gain, condition factor, specific growth rate, and feed conversion ratio using 7+ years old sturgeons. The mean initial weight of fish held in the non‐shaded pond was 3850 g (±780) and in shaded ponds was about 3550 g (±660). The culture period lasted for 1 year (25 September 2007–24 September 2008). For individual monitoring fish were externally marked with T‐Bar Anchor tags. The experimental groups were fed commercial extruded diet (protein content 49–50%, lipid content of 15%), prepared by the Sibal Blacksea Company. The final mean weight of fish held in the non‐shaded pond was found to be 6710 g (±1670) and reached in shaded ponds about 6404 g (±1291). The maximum and minimum individual condition factors were 1.0 and 0.4 in both groups in the 4th period (March–May). The minimum specific growth rates (SGR) were 0.07 (non‐shaded pond) and 0.06 (shaded ponds). These values were observed between January and March (cold water conditions) while the maximum SGR was (0.3) between September and November. The best feed conversion ratio (FCR) was obtained in the shaded ponds with 1.3–1.5 during September–November and March–May, respectively. The mean FCR was around 2.5 in both test groups. During the entire experiment on average light intensity was 70% reduced in the shaded ponds compared to the open pond. The growth performance between the two groups did not differ significantly (P > 0.05). However in the non‐shaded ponds, the colour of the fish was darker when exposed directly to sunlight.</p></abstract></profileDesc><revisionDesc><change when="2011-04">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/ECC37D0CF04DF33017E34A3832CCF43F4207F79F/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Blackwell Publishing Ltd</publisherName><publisherLoc>Oxford, UK</publisherLoc></publisherInfo><doi origin="wiley" registered="yes">10.1111/(ISSN)1439-0426</doi><issn type="print">0175-8659</issn><issn type="electronic">1439-0426</issn><idGroup><id type="product" value="JAI"></id><id type="publisherDivision" value="ST"></id></idGroup><titleGroup><title type="main" sort="JOURNAL OF APPLIED ICHTHYOLOGY">Journal of Applied Ichthyology</title></titleGroup></publicationMeta><publicationMeta level="part" position="04102"><doi origin="wiley">10.1111/jai.2011.27.issue-2</doi><titleGroup><title type="specialIssueTitle">Proceedings of the 6th International Symposium on Sturgeon Wuhan, China October 25‐31, 2009</title></titleGroup><numberingGroup><numbering type="journalVolume" number="27">27</numbering><numbering type="journalIssue">2</numbering></numberingGroup><coverDate startDate="2011-04">April 2011</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="68" status="forIssue"><doi origin="wiley">10.1111/j.1439-0426.2011.01732.x</doi><idGroup><id type="unit" value="JAI1732"></id></idGroup><countGroup><count type="pageTotal" number="5"></count></countGroup><titleGroup><title type="tocHeading1">Aquaculture</title><title type="tocHeading2"><i>General/production/husbandry/management</i></title></titleGroup><copyright>© 2011 Blackwell Verlag, Berlin</copyright><eventGroup><event type="xmlConverted" agent="Converter:BPG_TO_WML3G version:2.4.8 mode:FullText" date="2011-04-12"></event><event type="publishedOnlineFinalForm" date="2011-03-28"></event><event type="firstOnline" date="2011-03-28"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-01-28"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-24"></event></eventGroup><numberingGroup><numbering type="pageFirst" number="571">571</numbering><numbering type="pageLast" number="575">575</numbering></numberingGroup><correspondenceTo><b>Author’s address:</b> Devrim Memiş, İstanbul Universty Fisheries Faculty, Aquaculture Department, 34470, Laleli, İstanbul, Turkey.
E‐mail: <email>mdevrim@istanbul.edu.tr</email></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:JAI.JAI1732.pdf"></link></linkGroup></publicationMeta><contentMeta><unparsedEditorialHistory>Received: June 20, 2010 Accepted: February 4, 2011</unparsedEditorialHistory><countGroup><count type="figureTotal" number="5"></count><count type="tableTotal" number="4"></count></countGroup><titleGroup><title type="main">The effects of shaded pond on growth performance of Russian sturgeon (<i>Acipenser gueldenstaedtii</i>)</title><title type="shortAuthors">D. Memiş, E. Ercan and G. Yamaner</title><title type="short">The effects of shaded pond on growth performance of <i>A. gueldenstaedtii</i></title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#aff-1-1"><personName><givenNames>D.</givenNames><familyName>Memiş</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" noteRef="#fn1"><personName><givenNames>E.</givenNames><familyName>Ercan</familyName></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#aff-1-1"><personName><givenNames>G.</givenNames><familyName>Yamaner</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="aff-1-1" countryCode="TR"><unparsedAffiliation>Fisheries Faculty, Aquaculture Department, Istanbul University, Laleli, Istanbul, Turkey</unparsedAffiliation></affiliation></affiliationGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Summary</title><p>The aim of this study was to identify the effects of reduced daylight over shaded ponds on growth during adult rearing of Russian sturgeon (<i>Acipenser gueldenstaedtii)</i>. Growth performance was determined as weight gain, condition factor, specific growth rate, and feed conversion ratio using 7+ years old sturgeons. The mean initial weight of fish held in the non‐shaded pond was 3850 g (±780) and in shaded ponds was about 3550 g (±660). The culture period lasted for 1 year (25 September 2007–24 September 2008). For individual monitoring fish were externally marked with T‐Bar Anchor tags. The experimental groups were fed commercial extruded diet (protein content 49–50%, lipid content of 15%), prepared by the Sibal Blacksea Company. The final mean weight of fish held in the non‐shaded pond was found to be 6710 g (±1670) and reached in shaded ponds about 6404 g (±1291). The maximum and minimum individual condition factors were 1.0 and 0.4 in both groups in the 4th period (March–May). The minimum specific growth rates (SGR) were 0.07 (non‐shaded pond) and 0.06 (shaded ponds). These values were observed between January and March (cold water conditions) while the maximum SGR was (0.3) between September and November. The best feed conversion ratio (FCR) was obtained in the shaded ponds with 1.3–1.5 during September–November and March–May, respectively. The mean FCR was around 2.5 in both test groups. During the entire experiment on average light intensity was 70% reduced in the shaded ponds compared to the open pond. The growth performance between the two groups did not differ significantly (P > 0.05). However in the non‐shaded ponds, the colour of the fish was darker when exposed directly to sunlight.</p></abstract></abstractGroup></contentMeta><noteGroup><note xml:id="fn1"><p> Present address: Fisheries Faculty, Mugla University, Kötekli, Muǧla, Turkey</p></note></noteGroup></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>The effects of shaded pond on growth performance of Russian sturgeon (Acipenser gueldenstaedtii)</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>The effects of shaded pond on growth performance of A. gueldenstaedtii</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>The effects of shaded pond on growth performance of Russian sturgeon (Acipenser gueldenstaedtii)</title></titleInfo><name type="personal"><namePart type="given">D.</namePart><namePart type="family">Memiş</namePart><affiliation>Fisheries Faculty, Aquaculture Department, Istanbul University, Laleli, Istanbul, Turkey</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">E.</namePart><namePart type="family">Ercan</namePart><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">G.</namePart><namePart type="family">Yamaner</namePart><affiliation>Fisheries Faculty, Aquaculture Department, Istanbul University, Laleli, Istanbul, Turkey</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><place><placeTerm type="text">Oxford, UK</placeTerm></place><dateIssued encoding="w3cdtf">2011-04</dateIssued><edition>Received: June 20, 2010 Accepted: February 4, 2011</edition><copyrightDate encoding="w3cdtf">2011</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">5</extent><extent unit="tables">4</extent></physicalDescription><abstract lang="en">The aim of this study was to identify the effects of reduced daylight over shaded ponds on growth during adult rearing of Russian sturgeon (Acipenser gueldenstaedtii). Growth performance was determined as weight gain, condition factor, specific growth rate, and feed conversion ratio using 7+ years old sturgeons. The mean initial weight of fish held in the non‐shaded pond was 3850 g (±780) and in shaded ponds was about 3550 g (±660). The culture period lasted for 1 year (25 September 2007–24 September 2008). For individual monitoring fish were externally marked with T‐Bar Anchor tags. The experimental groups were fed commercial extruded diet (protein content 49–50%, lipid content of 15%), prepared by the Sibal Blacksea Company. The final mean weight of fish held in the non‐shaded pond was found to be 6710 g (±1670) and reached in shaded ponds about 6404 g (±1291). The maximum and minimum individual condition factors were 1.0 and 0.4 in both groups in the 4th period (March–May). The minimum specific growth rates (SGR) were 0.07 (non‐shaded pond) and 0.06 (shaded ponds). These values were observed between January and March (cold water conditions) while the maximum SGR was (0.3) between September and November. The best feed conversion ratio (FCR) was obtained in the shaded ponds with 1.3–1.5 during September–November and March–May, respectively. The mean FCR was around 2.5 in both test groups. During the entire experiment on average light intensity was 70% reduced in the shaded ponds compared to the open pond. The growth performance between the two groups did not differ significantly (P > 0.05). However in the non‐shaded ponds, the colour of the fish was darker when exposed directly to sunlight.</abstract><relatedItem type="host"><titleInfo><title>Journal of Applied Ichthyology</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">0175-8659</identifier><identifier type="eISSN">1439-0426</identifier><identifier type="DOI">10.1111/(ISSN)1439-0426</identifier><identifier type="PublisherID">JAI</identifier><part><date>2011</date><detail type="title"><title>Proceedings of the 6th International Symposium on Sturgeon Wuhan, China October 25‐31, 2009</title></detail><detail type="volume"><caption>vol.</caption><number>27</number></detail><detail type="issue"><caption>no.</caption><number>2</number></detail><extent unit="pages"><start>571</start><end>575</end><total>5</total></extent></part></relatedItem><identifier type="istex">ECC37D0CF04DF33017E34A3832CCF43F4207F79F</identifier><identifier type="DOI">10.1111/j.1439-0426.2011.01732.x</identifier><identifier type="ArticleID">JAI1732</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2011 Blackwell Verlag, Berlin</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource><recordOrigin>Blackwell Publishing Ltd</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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