Effects of daily temperature fluctuations on growth and hematology of juvenile Acipenser baerii
Identifieur interne : 000951 ( Istex/Corpus ); précédent : 000950; suivant : 000952Effects of daily temperature fluctuations on growth and hematology of juvenile Acipenser baerii
Auteurs : M. A. Y. Sadati ; M. Pourkazemi ; M. Shakurian ; M. H. S. Hasani ; H. R. Pourali ; M. Pourasaadi ; A. YousefiSource :
- Journal of Applied Ichthyology [ 0175-8659 ] ; 2011-04.
Abstract
This study was undertaken to evaluate the effects of temperature fluctuations on growth rates, hematological indices and body composition of Acipenser baerii juvenile during a 120 day trial. A total of 120 juveniles (initial body weight: 132 ± 4.2 g) were stocked in triplicate groups (10 individual per replicate) in 12 fiberglass tanks (500 L capacity). Four temperature regimes were applied: The first group was maintained as control at constant 22 ± 0.6°C (mean temperature around which the temperature of the other test trials fluctuated). The second group was exposed to temperature fluctuations between 19 and 25°C over a 24 h cycle, starting with the upward part of the cycle during daytime (feeding period). The third group started the exposure of the 24 h temperature cycle at the higher value (at 25°C; declining over the daytime) while the fourth group was exposed to two complete daily cycles of the same temperature fluctuations (between 19 and 25°C). Biometry of fish (total length and weight) was determined monthly. Blood samples were also collected every month and body composition was determined at the end of the experiment. After 17 weeks final weights were significantly affected by the daily temperature fluctuations (P < 0.05). The highest final weight and SGR was recorded in regime 2 followed by the control. The Highest body protein and lowest body lipid were recorded in fish exposed to the fourth temperature regime (two full temperature cycles in 24 h). Fish reared under this temperature regime also showed significantly lower blood plasma glucose levels than the other treatments (P < 0.05). Hemoglobin and hematocrit content in blood samples were not affected by any of the tested daily temperature fluctuations (P > 0.05). The leukocyte count increased slightly in regimes 2 and 4 compared to regime 1 (control) but differences were not significant (P > 0.05). These results tentatively suggest that some temperature fluctuations on a daily cycle can improve growth rates and enhance the immune system in Acipencer baerii. However, the optimum frequency and amplitude for temperature undulations remain to be investigated in more detail.
Url:
DOI: 10.1111/j.1439-0426.2011.01667.x
Links to Exploration step
ISTEX:78FA696DE8FEF6BC78D6948062AA0EF88734C488Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Effects of daily temperature fluctuations on growth and hematology of juvenile Acipenser baerii</title><author><name sortKey="Sadati, M A Y" sort="Sadati, M A Y" uniqKey="Sadati M" first="M. A. Y." last="Sadati">M. A. Y. Sadati</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Pourkazemi, M" sort="Pourkazemi, M" uniqKey="Pourkazemi M" first="M." last="Pourkazemi">M. Pourkazemi</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Shakurian, M" sort="Shakurian, M" uniqKey="Shakurian M" first="M." last="Shakurian">M. Shakurian</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Hasani, M H S" sort="Hasani, M H S" uniqKey="Hasani M" first="M. H. S." last="Hasani">M. H. S. Hasani</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Pourali, H R" sort="Pourali, H R" uniqKey="Pourali H" first="H. R." last="Pourali">H. R. Pourali</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Pourasaadi, M" sort="Pourasaadi, M" uniqKey="Pourasaadi M" first="M." last="Pourasaadi">M. Pourasaadi</name><affiliation><mods:affiliation>Mirza Kochak Khan Higher Fisheries Education, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Yousefi, A" sort="Yousefi, A" uniqKey="Yousefi A" first="A." last="Yousefi">A. Yousefi</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:78FA696DE8FEF6BC78D6948062AA0EF88734C488</idno><date when="2011" year="2011">2011</date><idno type="doi">10.1111/j.1439-0426.2011.01667.x</idno><idno type="url">https://api.istex.fr/document/78FA696DE8FEF6BC78D6948062AA0EF88734C488/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000951</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000951</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Effects of daily temperature fluctuations on growth and hematology of juvenile Acipenser baerii</title><author><name sortKey="Sadati, M A Y" sort="Sadati, M A Y" uniqKey="Sadati M" first="M. A. Y." last="Sadati">M. A. Y. Sadati</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Pourkazemi, M" sort="Pourkazemi, M" uniqKey="Pourkazemi M" first="M." last="Pourkazemi">M. Pourkazemi</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Shakurian, M" sort="Shakurian, M" uniqKey="Shakurian M" first="M." last="Shakurian">M. Shakurian</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Hasani, M H S" sort="Hasani, M H S" uniqKey="Hasani M" first="M. H. S." last="Hasani">M. H. S. Hasani</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Pourali, H R" sort="Pourali, H R" uniqKey="Pourali H" first="H. R." last="Pourali">H. R. Pourali</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Pourasaadi, M" sort="Pourasaadi, M" uniqKey="Pourasaadi M" first="M." last="Pourasaadi">M. Pourasaadi</name><affiliation><mods:affiliation>Mirza Kochak Khan Higher Fisheries Education, Rasht, Iran</mods:affiliation></affiliation></author><author><name sortKey="Yousefi, A" sort="Yousefi, A" uniqKey="Yousefi A" first="A." last="Yousefi">A. Yousefi</name><affiliation><mods:affiliation>International Sturgeon Research Institute, Rasht, Iran</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="591">591</biblScope><biblScope unit="page" to="594">594</biblScope></imprint><idno type="ISSN">0175-8659</idno></series><idno type="istex">78FA696DE8FEF6BC78D6948062AA0EF88734C488</idno><idno type="DOI">10.1111/j.1439-0426.2011.01667.x</idno><idno type="ArticleID">JAI1667</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">This study was undertaken to evaluate the effects of temperature fluctuations on growth rates, hematological indices and body composition of Acipenser baerii juvenile during a 120 day trial. A total of 120 juveniles (initial body weight: 132 ± 4.2 g) were stocked in triplicate groups (10 individual per replicate) in 12 fiberglass tanks (500 L capacity). Four temperature regimes were applied: The first group was maintained as control at constant 22 ± 0.6°C (mean temperature around which the temperature of the other test trials fluctuated). The second group was exposed to temperature fluctuations between 19 and 25°C over a 24 h cycle, starting with the upward part of the cycle during daytime (feeding period). The third group started the exposure of the 24 h temperature cycle at the higher value (at 25°C; declining over the daytime) while the fourth group was exposed to two complete daily cycles of the same temperature fluctuations (between 19 and 25°C). Biometry of fish (total length and weight) was determined monthly. Blood samples were also collected every month and body composition was determined at the end of the experiment. After 17 weeks final weights were significantly affected by the daily temperature fluctuations (P < 0.05). The highest final weight and SGR was recorded in regime 2 followed by the control. The Highest body protein and lowest body lipid were recorded in fish exposed to the fourth temperature regime (two full temperature cycles in 24 h). Fish reared under this temperature regime also showed significantly lower blood plasma glucose levels than the other treatments (P < 0.05). Hemoglobin and hematocrit content in blood samples were not affected by any of the tested daily temperature fluctuations (P > 0.05). The leukocyte count increased slightly in regimes 2 and 4 compared to regime 1 (control) but differences were not significant (P > 0.05). These results tentatively suggest that some temperature fluctuations on a daily cycle can improve growth rates and enhance the immune system in Acipencer baerii. However, the optimum frequency and amplitude for temperature undulations remain to be investigated in more detail.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>M. A. Y. Sadati</name><affiliations><json:string>International Sturgeon Research Institute, Rasht, Iran</json:string></affiliations></json:item><json:item><name>M. Pourkazemi</name><affiliations><json:string>International Sturgeon Research Institute, Rasht, Iran</json:string></affiliations></json:item><json:item><name>M. Shakurian</name><affiliations><json:string>International Sturgeon Research Institute, Rasht, Iran</json:string></affiliations></json:item><json:item><name>M. H. S. Hasani</name><affiliations><json:string>International Sturgeon Research Institute, Rasht, Iran</json:string></affiliations></json:item><json:item><name>H. R. Pourali</name><affiliations><json:string>International Sturgeon Research Institute, Rasht, Iran</json:string></affiliations></json:item><json:item><name>M. Pourasaadi</name><affiliations><json:string>Mirza Kochak Khan Higher Fisheries Education, Rasht, Iran</json:string></affiliations></json:item><json:item><name>A. Yousefi</name><affiliations><json:string>International Sturgeon Research Institute, Rasht, Iran</json:string></affiliations></json:item></author><articleId><json:string>JAI1667</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>This study was undertaken to evaluate the effects of temperature fluctuations on growth rates, hematological indices and body composition of Acipenser baerii juvenile during a 120 day trial. A total of 120 juveniles (initial body weight: 132 ± 4.2 g) were stocked in triplicate groups (10 individual per replicate) in 12 fiberglass tanks (500 L capacity). Four temperature regimes were applied: The first group was maintained as control at constant 22 ± 0.6°C (mean temperature around which the temperature of the other test trials fluctuated). The second group was exposed to temperature fluctuations between 19 and 25°C over a 24 h cycle, starting with the upward part of the cycle during daytime (feeding period). The third group started the exposure of the 24 h temperature cycle at the higher value (at 25°C; declining over the daytime) while the fourth group was exposed to two complete daily cycles of the same temperature fluctuations (between 19 and 25°C). Biometry of fish (total length and weight) was determined monthly. Blood samples were also collected every month and body composition was determined at the end of the experiment. After 17 weeks final weights were significantly affected by the daily temperature fluctuations (P > 0.05). The highest final weight and SGR was recorded in regime 2 followed by the control. The Highest body protein and lowest body lipid were recorded in fish exposed to the fourth temperature regime (two full temperature cycles in 24 h). Fish reared under this temperature regime also showed significantly lower blood plasma glucose levels than the other treatments (P > 0.05). Hemoglobin and hematocrit content in blood samples were not affected by any of the tested daily temperature fluctuations (P > 0.05). The leukocyte count increased slightly in regimes 2 and 4 compared to regime 1 (control) but differences were not significant (P > 0.05). These results tentatively suggest that some temperature fluctuations on a daily cycle can improve growth rates and enhance the immune system in Acipencer baerii. However, the optimum frequency and amplitude for temperature undulations remain to be investigated in more detail.</abstract><qualityIndicators><score>6.133</score><pdfVersion>1.3</pdfVersion><pdfPageSize>595.276 x 841.89 pts (A4)</pdfPageSize><refBibsNative>true</refBibsNative><abstractCharCount>2171</abstractCharCount><pdfWordCount>3133</pdfWordCount><pdfCharCount>19100</pdfCharCount><pdfPageCount>4</pdfPageCount><abstractWordCount>326</abstractWordCount></qualityIndicators><title>Effects of daily temperature fluctuations on growth and hematology of juvenile Acipenser baerii</title><genre><json:string>article</json:string></genre><host><volume>27</volume><publisherId><json:string>JAI</json:string></publisherId><pages><total>4</total><last>594</last><first>591</first></pages><issn><json:string>0175-8659</json:string></issn><issue>2</issue><genre><json:string>journal</json:string></genre><language><json:string>unknown</json:string></language><eissn><json:string>1439-0426</json:string></eissn><title>Journal of Applied Ichthyology</title><doi><json:string>10.1111/(ISSN)1439-0426</json:string></doi></host><categories><wos><json:string>science</json:string><json:string>marine & freshwater biology</json:string><json:string>fisheries</json:string></wos><scienceMetrix><json:string>applied sciences</json:string><json:string>agriculture, fisheries & forestry</json:string><json:string>fisheries</json:string></scienceMetrix></categories><publicationDate>2011</publicationDate><copyrightDate>2011</copyrightDate><doi><json:string>10.1111/j.1439-0426.2011.01667.x</json:string></doi><id>78FA696DE8FEF6BC78D6948062AA0EF88734C488</id><score>0.045053184</score><fulltext><json:item><extension>pdf</extension><original>true</original><mimetype>application/pdf</mimetype><uri>https://api.istex.fr/document/78FA696DE8FEF6BC78D6948062AA0EF88734C488/fulltext/pdf</uri></json:item><json:item><extension>zip</extension><original>false</original><mimetype>application/zip</mimetype><uri>https://api.istex.fr/document/78FA696DE8FEF6BC78D6948062AA0EF88734C488/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/78FA696DE8FEF6BC78D6948062AA0EF88734C488/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Effects of daily temperature fluctuations on growth and hematology of juvenile Acipenser baerii</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><availability><p>© 2011 Blackwell Verlag, Berlin</p></availability><date>2011</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Effects of daily temperature fluctuations on growth and hematology of juvenile Acipenser baerii</title><author xml:id="author-1"><persName><forename type="first">M. A. Y.</forename><surname>Sadati</surname></persName><affiliation>International Sturgeon Research Institute, Rasht, Iran</affiliation></author><author xml:id="author-2"><persName><forename type="first">M.</forename><surname>Pourkazemi</surname></persName><affiliation>International Sturgeon Research Institute, Rasht, Iran</affiliation></author><author xml:id="author-3"><persName><forename type="first">M.</forename><surname>Shakurian</surname></persName><affiliation>International Sturgeon Research Institute, Rasht, Iran</affiliation></author><author xml:id="author-4"><persName><forename type="first">M. H. S.</forename><surname>Hasani</surname></persName><affiliation>International Sturgeon Research Institute, Rasht, Iran</affiliation></author><author xml:id="author-5"><persName><forename type="first">H. R.</forename><surname>Pourali</surname></persName><affiliation>International Sturgeon Research Institute, Rasht, Iran</affiliation></author><author xml:id="author-6"><persName><forename type="first">M.</forename><surname>Pourasaadi</surname></persName><affiliation>Mirza Kochak Khan Higher Fisheries Education, Rasht, Iran</affiliation></author><author xml:id="author-7"><persName><forename type="first">A.</forename><surname>Yousefi</surname></persName><affiliation>International Sturgeon Research Institute, Rasht, Iran</affiliation></author></analytic><monogr><title level="j">Journal of Applied Ichthyology</title><idno type="pISSN">0175-8659</idno><idno type="eISSN">1439-0426</idno><idno type="DOI">10.1111/(ISSN)1439-0426</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2011-04"></date><biblScope unit="volume">27</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="591">591</biblScope><biblScope unit="page" to="594">594</biblScope></imprint></monogr><idno type="istex">78FA696DE8FEF6BC78D6948062AA0EF88734C488</idno><idno type="DOI">10.1111/j.1439-0426.2011.01667.x</idno><idno type="ArticleID">JAI1667</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2011</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>This study was undertaken to evaluate the effects of temperature fluctuations on growth rates, hematological indices and body composition of Acipenser baerii juvenile during a 120 day trial. A total of 120 juveniles (initial body weight: 132 ± 4.2 g) were stocked in triplicate groups (10 individual per replicate) in 12 fiberglass tanks (500 L capacity). Four temperature regimes were applied: The first group was maintained as control at constant 22 ± 0.6°C (mean temperature around which the temperature of the other test trials fluctuated). The second group was exposed to temperature fluctuations between 19 and 25°C over a 24 h cycle, starting with the upward part of the cycle during daytime (feeding period). The third group started the exposure of the 24 h temperature cycle at the higher value (at 25°C; declining over the daytime) while the fourth group was exposed to two complete daily cycles of the same temperature fluctuations (between 19 and 25°C). Biometry of fish (total length and weight) was determined monthly. Blood samples were also collected every month and body composition was determined at the end of the experiment. After 17 weeks final weights were significantly affected by the daily temperature fluctuations (P < 0.05). The highest final weight and SGR was recorded in regime 2 followed by the control. The Highest body protein and lowest body lipid were recorded in fish exposed to the fourth temperature regime (two full temperature cycles in 24 h). Fish reared under this temperature regime also showed significantly lower blood plasma glucose levels than the other treatments (P < 0.05). Hemoglobin and hematocrit content in blood samples were not affected by any of the tested daily temperature fluctuations (P > 0.05). The leukocyte count increased slightly in regimes 2 and 4 compared to regime 1 (control) but differences were not significant (P > 0.05). These results tentatively suggest that some temperature fluctuations on a daily cycle can improve growth rates and enhance the immune system in Acipencer baerii. However, the optimum frequency and amplitude for temperature undulations remain to be investigated in more detail.</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/78FA696DE8FEF6BC78D6948062AA0EF88734C488/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="72" status="forIssue"><doi origin="wiley">10.1111/j.1439-0426.2011.01667.x</doi><idGroup><id type="unit" value="JAI1667"></id></idGroup><countGroup><count type="pageTotal" number="4"></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="591">591</numbering><numbering type="pageLast" number="594">594</numbering></numberingGroup><correspondenceTo><b>Author’s address:</b> Mohammad Ali Yazani Sadati, International Sturgeon Research Institute, Department of aquaculture, PO Box 41635‐3464, Rasht, Iran.
E‐mail: <email>myazdanisadati@yahoo.com</email></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:JAI.JAI1667.pdf"></link></linkGroup></publicationMeta><contentMeta><unparsedEditorialHistory>Received: June 24, 2010 Accepted: December 28, 2010</unparsedEditorialHistory><countGroup><count type="figureTotal" number="0"></count><count type="tableTotal" number="5"></count></countGroup><titleGroup><title type="main">Effects of daily temperature fluctuations on growth and hematology of juvenile <i>Acipenser baerii</i></title><title type="shortAuthors">M. A. Y. Sadati et al.</title><title type="short">Effect of daily temperature on growth of <i>A. baerii</i></title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#a1"><personName><givenNames>M. A. Y.</givenNames><familyName>Sadati</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#a1"><personName><givenNames>M.</givenNames><familyName>Pourkazemi</familyName></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#a1"><personName><givenNames>M.</givenNames><familyName>Shakurian</familyName></personName></creator><creator creatorRole="author" xml:id="cr4" affiliationRef="#a1"><personName><givenNames>M. H. S.</givenNames><familyName>Hasani</familyName></personName></creator><creator creatorRole="author" xml:id="cr5" affiliationRef="#a1"><personName><givenNames>H. R.</givenNames><familyName>Pourali</familyName></personName></creator><creator creatorRole="author" xml:id="cr6" affiliationRef="#a2"><personName><givenNames>M.</givenNames><familyName>Pourasaadi</familyName></personName></creator><creator creatorRole="author" xml:id="cr7" affiliationRef="#a1"><personName><givenNames>A.</givenNames><familyName>Yousefi</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="a1"><unparsedAffiliation>International Sturgeon Research Institute, Rasht, Iran</unparsedAffiliation></affiliation><affiliation xml:id="a2"><unparsedAffiliation>Mirza Kochak Khan Higher Fisheries Education, Rasht, Iran</unparsedAffiliation></affiliation></affiliationGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Summary</title><p>This study was undertaken to evaluate the effects of temperature fluctuations on growth rates, hematological indices and body composition of <i>Acipenser baerii</i> juvenile during a 120 day trial. A total of 120 juveniles (initial body weight: 132 ± 4.2 g) were stocked in triplicate groups (10 individual per replicate) in 12 fiberglass tanks (500 L capacity). Four temperature regimes were applied: The first group was maintained as control at constant 22 ± 0.6°C (mean temperature around which the temperature of the other test trials fluctuated). The second group was exposed to temperature fluctuations between 19 and 25°C over a 24 h cycle, starting with the upward part of the cycle during daytime (feeding period). The third group started the exposure of the 24 h temperature cycle at the higher value (at 25°C; declining over the daytime) while the fourth group was exposed to two complete daily cycles of the same temperature fluctuations (between 19 and 25°C). Biometry of fish (total length and weight) was determined monthly. Blood samples were also collected every month and body composition was determined at the end of the experiment. After 17 weeks final weights were significantly affected by the daily temperature fluctuations (P < 0.05). The highest final weight and SGR was recorded in regime 2 followed by the control. The Highest body protein and lowest body lipid were recorded in fish exposed to the fourth temperature regime (two full temperature cycles in 24 h). Fish reared under this temperature regime also showed significantly lower blood plasma glucose levels than the other treatments (P < 0.05). Hemoglobin and hematocrit content in blood samples were not affected by any of the tested daily temperature fluctuations (P > 0.05). The leukocyte count increased slightly in regimes 2 and 4 compared to regime 1 (control) but differences were not significant (P > 0.05). These results tentatively suggest that some temperature fluctuations on a daily cycle can improve growth rates and enhance the immune system in <i>Acipencer baerii</i>. However, the optimum frequency and amplitude for temperature undulations remain to be investigated in more detail.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Effects of daily temperature fluctuations on growth and hematology of juvenile Acipenser baerii</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Effect of daily temperature on growth of A. baerii</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Effects of daily temperature fluctuations on growth and hematology of juvenile Acipenser baerii</title></titleInfo><name type="personal"><namePart type="given">M. A. Y.</namePart><namePart type="family">Sadati</namePart><affiliation>International Sturgeon Research Institute, Rasht, Iran</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M.</namePart><namePart type="family">Pourkazemi</namePart><affiliation>International Sturgeon Research Institute, Rasht, Iran</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M.</namePart><namePart type="family">Shakurian</namePart><affiliation>International Sturgeon Research Institute, Rasht, Iran</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M. H. S.</namePart><namePart type="family">Hasani</namePart><affiliation>International Sturgeon Research Institute, Rasht, Iran</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">H. R.</namePart><namePart type="family">Pourali</namePart><affiliation>International Sturgeon Research Institute, Rasht, Iran</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">M.</namePart><namePart type="family">Pourasaadi</namePart><affiliation>Mirza Kochak Khan Higher Fisheries Education, Rasht, Iran</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">A.</namePart><namePart type="family">Yousefi</namePart><affiliation>International Sturgeon Research Institute, Rasht, Iran</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 24, 2010 Accepted: December 28, 2010</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="tables">5</extent></physicalDescription><abstract lang="en">This study was undertaken to evaluate the effects of temperature fluctuations on growth rates, hematological indices and body composition of Acipenser baerii juvenile during a 120 day trial. A total of 120 juveniles (initial body weight: 132 ± 4.2 g) were stocked in triplicate groups (10 individual per replicate) in 12 fiberglass tanks (500 L capacity). Four temperature regimes were applied: The first group was maintained as control at constant 22 ± 0.6°C (mean temperature around which the temperature of the other test trials fluctuated). The second group was exposed to temperature fluctuations between 19 and 25°C over a 24 h cycle, starting with the upward part of the cycle during daytime (feeding period). The third group started the exposure of the 24 h temperature cycle at the higher value (at 25°C; declining over the daytime) while the fourth group was exposed to two complete daily cycles of the same temperature fluctuations (between 19 and 25°C). Biometry of fish (total length and weight) was determined monthly. Blood samples were also collected every month and body composition was determined at the end of the experiment. After 17 weeks final weights were significantly affected by the daily temperature fluctuations (P < 0.05). The highest final weight and SGR was recorded in regime 2 followed by the control. The Highest body protein and lowest body lipid were recorded in fish exposed to the fourth temperature regime (two full temperature cycles in 24 h). Fish reared under this temperature regime also showed significantly lower blood plasma glucose levels than the other treatments (P < 0.05). Hemoglobin and hematocrit content in blood samples were not affected by any of the tested daily temperature fluctuations (P > 0.05). The leukocyte count increased slightly in regimes 2 and 4 compared to regime 1 (control) but differences were not significant (P > 0.05). These results tentatively suggest that some temperature fluctuations on a daily cycle can improve growth rates and enhance the immune system in Acipencer baerii. However, the optimum frequency and amplitude for temperature undulations remain to be investigated in more detail.</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>591</start><end>594</end><total>4</total></extent></part></relatedItem><identifier type="istex">78FA696DE8FEF6BC78D6948062AA0EF88734C488</identifier><identifier type="DOI">10.1111/j.1439-0426.2011.01667.x</identifier><identifier type="ArticleID">JAI1667</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)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Eau/explor/EsturgeonV1/Data/Istex/Corpus
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000951 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Istex/Corpus/biblio.hfd -nk 000951 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Eau
|area= EsturgeonV1
|flux= Istex
|étape= Corpus
|type= RBID
|clé= ISTEX:78FA696DE8FEF6BC78D6948062AA0EF88734C488
|texte= Effects of daily temperature fluctuations on growth and hematology of juvenile Acipenser baerii
}}
| This area was generated with Dilib version V0.6.27. |  |