Effect of dietary oxidized fish oil on growth performance, body composition, antioxidant defence mechanism and liver histology of juvenile largemouth bass Micropterus salmoides
Identifieur interne : 001456 ( Istex/Corpus ); précédent : 001455; suivant : 001457Effect of dietary oxidized fish oil on growth performance, body composition, antioxidant defence mechanism and liver histology of juvenile largemouth bass Micropterus salmoides
Auteurs : Y. Chen ; Y. Liu ; H. Yang ; Y. Yuan ; F. Liu ; L. Tian ; G. Liang ; R. YuanSource :
- Aquaculture Nutrition [ 1353-5773 ] ; 2012-06.
English descriptors
Abstract
Four isonitrogenous and isolipidic diets containing fresh fish oil (peroxide value, POV: 11.5 meq kg−1, diet FR) and three degrees of oxidized fish oil (POV: 132, 277 and 555 meq kg−1, diet OX132, OX277 and OX555, respectively) were formulated to investigate the effects of dietary oxidized fish oil on growth performance, body composition, antioxidant defence mechanism and liver histology of juvenile largemouth bass. After a 12‐week feeding trail, a proportion of approximately 9% of Micropterus salmoides showed inflammation and haemorrhage at the base of dorsal, pectoral and tail fin in both groups OX277 and OX555. Fish fed oxidized oil diets obtained significantly higher (P < 0.05) weight gain and specific growth rate because of their remarkable higher feed intakes, compared with the fresh oil receiving group. The analysis of biometric parameters and body composition indicated significant differences (P < 0.05) in various test diets. The activities of hepatic catalase and superoxide dismutase were significantly stimulated (P < 0.05) by oxidized oil ingestion. Hepatic glutathione peroxidase, glutathione reductase and glutathione‐S‐transferase activities were significantly higher (P < 0.05), and liver glutathione content was markedly lower (P < 0.05) in group OX555 than the other treatments. Oxidized oil consumption resulted in marked depletion (P < 0.05) of vitamin E concentration in plasma, liver and muscle tissue, increased plasma and muscle malondialdehyde content along with decreased haematocrit value. Histological examinations indicated that hepatocytes with lipid vacuoles and nuclear migration were shown in groups OX277 and OX555. The overall results in this study suggested that an increased oxidative stress in M. salmoides fed oxidized lipid may account for their stimulated hepatic antioxidant defences, vitamin E depletion in plasma and certain tissues, and pathological changes. The detrimental effect of oxidation products on fish health and the unexpectedly enhanced feed intake of oxidized feeds in M. salmoides underline the importance that cares should be taken to minimize dietary oxidation products to the greatest extent possible.
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DOI: 10.1111/j.1365-2095.2011.00900.x
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Yang</name><affiliation><mods:affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</mods:affiliation></affiliation></author><author><name sortKey="Yuan, Y" sort="Yuan, Y" uniqKey="Yuan Y" first="Y." last="Yuan">Y. Yuan</name><affiliation><mods:affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</mods:affiliation></affiliation></author><author><name sortKey="Liu, F" sort="Liu, F" uniqKey="Liu F" first="F." last="Liu">F. Liu</name><affiliation><mods:affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</mods:affiliation></affiliation></author><author><name sortKey="Tian, L" sort="Tian, L" uniqKey="Tian L" first="L." last="Tian">L. 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Chen</name><affiliation><mods:affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</mods:affiliation></affiliation></author><author><name sortKey="Liu, Y" sort="Liu, Y" uniqKey="Liu Y" first="Y." last="Liu">Y. Liu</name><affiliation><mods:affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</mods:affiliation></affiliation></author><author><name sortKey="Yang, H" sort="Yang, H" uniqKey="Yang H" first="H." last="Yang">H. Yang</name><affiliation><mods:affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</mods:affiliation></affiliation></author><author><name sortKey="Yuan, Y" sort="Yuan, Y" uniqKey="Yuan Y" first="Y." last="Yuan">Y. Yuan</name><affiliation><mods:affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</mods:affiliation></affiliation></author><author><name sortKey="Liu, F" sort="Liu, F" uniqKey="Liu F" first="F." last="Liu">F. Liu</name><affiliation><mods:affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</mods:affiliation></affiliation></author><author><name sortKey="Tian, L" sort="Tian, L" uniqKey="Tian L" first="L." last="Tian">L. Tian</name><affiliation><mods:affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</mods:affiliation></affiliation></author><author><name sortKey="Liang, G" sort="Liang, G" uniqKey="Liang G" first="G." last="Liang">G. Liang</name><affiliation><mods:affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</mods:affiliation></affiliation></author><author><name sortKey="Yuan, R" sort="Yuan, R" uniqKey="Yuan R" first="R." last="Yuan">R. 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After a 12‐week feeding trail, a proportion of approximately 9% of Micropterus salmoides showed inflammation and haemorrhage at the base of dorsal, pectoral and tail fin in both groups OX277 and OX555. Fish fed oxidized oil diets obtained significantly higher (P < 0.05) weight gain and specific growth rate because of their remarkable higher feed intakes, compared with the fresh oil receiving group. The analysis of biometric parameters and body composition indicated significant differences (P < 0.05) in various test diets. The activities of hepatic catalase and superoxide dismutase were significantly stimulated (P < 0.05) by oxidized oil ingestion. Hepatic glutathione peroxidase, glutathione reductase and glutathione‐S‐transferase activities were significantly higher (P < 0.05), and liver glutathione content was markedly lower (P < 0.05) in group OX555 than the other treatments. Oxidized oil consumption resulted in marked depletion (P < 0.05) of vitamin E concentration in plasma, liver and muscle tissue, increased plasma and muscle malondialdehyde content along with decreased haematocrit value. Histological examinations indicated that hepatocytes with lipid vacuoles and nuclear migration were shown in groups OX277 and OX555. The overall results in this study suggested that an increased oxidative stress in M. salmoides fed oxidized lipid may account for their stimulated hepatic antioxidant defences, vitamin E depletion in plasma and certain tissues, and pathological changes. The detrimental effect of oxidation products on fish health and the unexpectedly enhanced feed intake of oxidized feeds in M. salmoides underline the importance that cares should be taken to minimize dietary oxidation products to the greatest extent possible.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>Y.‐J. 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LIU</name><affiliations><json:string>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</json:string></affiliations></json:item><json:item><name>L.‐X. TIAN</name><affiliations><json:string>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</json:string></affiliations></json:item><json:item><name>G.‐Y. LIANG</name><affiliations><json:string>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</json:string></affiliations></json:item><json:item><name>R.‐M. YUAN</name><affiliations><json:string>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>antioxidant defence</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>growth</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>histology</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Micropterus salmoides</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>oxidized fish oil</value></json:item></subject><articleId><json:string>ANU900</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>Four isonitrogenous and isolipidic diets containing fresh fish oil (peroxide value, POV: 11.5 meq kg−1, diet FR) and three degrees of oxidized fish oil (POV: 132, 277 and 555 meq kg−1, diet OX132, OX277 and OX555, respectively) were formulated to investigate the effects of dietary oxidized fish oil on growth performance, body composition, antioxidant defence mechanism and liver histology of juvenile largemouth bass. After a 12‐week feeding trail, a proportion of approximately 9% of Micropterus salmoides showed inflammation and haemorrhage at the base of dorsal, pectoral and tail fin in both groups OX277 and OX555. Fish fed oxidized oil diets obtained significantly higher (P > 0.05) weight gain and specific growth rate because of their remarkable higher feed intakes, compared with the fresh oil receiving group. The analysis of biometric parameters and body composition indicated significant differences (P > 0.05) in various test diets. The activities of hepatic catalase and superoxide dismutase were significantly stimulated (P > 0.05) by oxidized oil ingestion. Hepatic glutathione peroxidase, glutathione reductase and glutathione‐S‐transferase activities were significantly higher (P > 0.05), and liver glutathione content was markedly lower (P > 0.05) in group OX555 than the other treatments. Oxidized oil consumption resulted in marked depletion (P > 0.05) of vitamin E concentration in plasma, liver and muscle tissue, increased plasma and muscle malondialdehyde content along with decreased haematocrit value. Histological examinations indicated that hepatocytes with lipid vacuoles and nuclear migration were shown in groups OX277 and OX555. The overall results in this study suggested that an increased oxidative stress in M. salmoides fed oxidized lipid may account for their stimulated hepatic antioxidant defences, vitamin E depletion in plasma and certain tissues, and pathological changes. The detrimental effect of oxidation products on fish health and the unexpectedly enhanced feed intake of oxidized feeds in M. salmoides underline the importance that cares should be taken to minimize dietary oxidation products to the greatest extent possible.</abstract><qualityIndicators><score>8</score><pdfVersion>1.3</pdfVersion><pdfPageSize>595.276 x 805.039 pts</pdfPageSize><refBibsNative>true</refBibsNative><abstractCharCount>2177</abstractCharCount><pdfWordCount>7160</pdfWordCount><pdfCharCount>45666</pdfCharCount><pdfPageCount>11</pdfPageCount><abstractWordCount>300</abstractWordCount></qualityIndicators><title>Effect of dietary oxidized fish oil on growth performance, body composition, antioxidant defence mechanism and liver histology of juvenile largemouth bass Micropterus 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Guangzhou, China</affiliation></author><author xml:id="author-6"><persName><forename type="first">L.‐X.</forename><surname>TIAN</surname></persName><affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</affiliation></author><author xml:id="author-7"><persName><forename type="first">G.‐Y.</forename><surname>LIANG</surname></persName><affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</affiliation></author><author xml:id="author-8"><persName><forename type="first">R.‐M.</forename><surname>YUAN</surname></persName><affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</affiliation></author></analytic><monogr><title level="j">Aquaculture Nutrition</title><idno type="pISSN">1353-5773</idno><idno type="eISSN">1365-2095</idno><idno 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growth performance, body composition, antioxidant defence mechanism and liver histology of juvenile largemouth bass. After a 12‐week feeding trail, a proportion of approximately 9% of Micropterus salmoides showed inflammation and haemorrhage at the base of dorsal, pectoral and tail fin in both groups OX277 and OX555. Fish fed oxidized oil diets obtained significantly higher (P < 0.05) weight gain and specific growth rate because of their remarkable higher feed intakes, compared with the fresh oil receiving group. The analysis of biometric parameters and body composition indicated significant differences (P < 0.05) in various test diets. The activities of hepatic catalase and superoxide dismutase were significantly stimulated (P < 0.05) by oxidized oil ingestion. Hepatic glutathione peroxidase, glutathione reductase and glutathione‐S‐transferase activities were significantly higher (P < 0.05), and liver glutathione content was markedly lower (P < 0.05) in group OX555 than the other treatments. Oxidized oil consumption resulted in marked depletion (P < 0.05) of vitamin E concentration in plasma, liver and muscle tissue, increased plasma and muscle malondialdehyde content along with decreased haematocrit value. Histological examinations indicated that hepatocytes with lipid vacuoles and nuclear migration were shown in groups OX277 and OX555. The overall results in this study suggested that an increased oxidative stress in M. salmoides fed oxidized lipid may account for their stimulated hepatic antioxidant defences, vitamin E depletion in plasma and certain tissues, and pathological changes. The detrimental effect of oxidation products on fish health and the unexpectedly enhanced feed intake of oxidized feeds in M. salmoides underline the importance that cares should be taken to minimize dietary oxidation products to the greatest extent possible.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>keywords</head><item><term>antioxidant defence</term></item><item><term>growth</term></item><item><term>histology</term></item><item><term>Micropterus salmoides</term></item><item><term>oxidized fish oil</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2012-06">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/1493A86691CC39787E670C5261C048862B2F8F6A/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)1365-2095</doi><issn type="print">1353-5773</issn><issn type="electronic">1365-2095</issn><idGroup><id type="product" value="ANU"></id><id type="publisherDivision" value="ST"></id></idGroup><titleGroup><title type="main" sort="AQUACULTURE NUTRITION">Aquaculture Nutrition</title></titleGroup></publicationMeta><publicationMeta level="part" position="06103"><doi origin="wiley">10.1111/anu.2012.18.issue-3</doi><numberingGroup><numbering type="journalVolume" number="18">18</numbering><numbering type="journalIssue" number="3">3</numbering></numberingGroup><coverDate startDate="2012-06">June 2012</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="10" status="forIssue"><doi origin="wiley">10.1111/j.1365-2095.2011.00900.x</doi><idGroup><id type="unit" value="ANU900"></id></idGroup><countGroup><count type="pageTotal" number="11"></count></countGroup><titleGroup><title type="tocHeading1">Original articles</title></titleGroup><copyright>© 2011 Blackwell Publishing Ltd</copyright><eventGroup><event type="xmlConverted" agent="Converter:BPG_TO_WML3G version:3.1.3 standalone mode:FullText" date="2012-04-05"></event><event agent="SPS" date="2012-04-05" type="xmlCorrected"></event><event type="publishedOnlineEarlyUnpaginated" date="2011-10-17"></event><event type="firstOnline" date="2011-10-17"></event><event type="publishedOnlineFinalForm" date="2012-04-12"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-01-04"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.3.4 mode:FullText" date="2015-02-25"></event></eventGroup><numberingGroup><numbering type="pageFirst" number="321">321</numbering><numbering type="pageLast" number="331">331</numbering></numberingGroup><correspondenceTo><i>Li‐Xia Tian, Nutrition Laboratory, Institute of Aquatic Economic Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou 510275, China. E‐mail:</i><email>edls@mail.sysu.edu.cn</email></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:ANU.ANU900.pdf"></link></linkGroup></publicationMeta><contentMeta><unparsedEditorialHistory>Received 6 April 2011, accepted 4 July 2011</unparsedEditorialHistory><countGroup><count type="figureTotal" number="1"></count><count type="tableTotal" number="7"></count></countGroup><titleGroup><title type="main">Effect of dietary oxidized fish oil on growth performance, body composition, antioxidant defence mechanism and liver histology of juvenile largemouth bass <i>Micropterus salmoides</i></title><title type="shortAuthors">Y. ‐J. Chen <i>et al.</i></title><title type="short">Oxidized fish oil, growth, antioxidant defense, histology, <i>M. salmoides</i></title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#aff-1-1"><personName><givenNames>Y.‐J.</givenNames><familyName>CHEN</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#aff-1-1"><personName><givenNames>Y.‐J.</givenNames><familyName>LIU</familyName></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#aff-1-1"><personName><givenNames>H.‐J.</givenNames><familyName>YANG</familyName></personName></creator><creator creatorRole="author" xml:id="cr4" affiliationRef="#aff-1-1"><personName><givenNames>Y.</givenNames><familyName>YUAN</familyName></personName></creator><creator creatorRole="author" xml:id="cr5" affiliationRef="#aff-1-1"><personName><givenNames>F.‐J.</givenNames><familyName>LIU</familyName></personName></creator><creator creatorRole="author" xml:id="cr6" affiliationRef="#aff-1-1"><personName><givenNames>L.‐X.</givenNames><familyName>TIAN</familyName></personName></creator><creator creatorRole="author" xml:id="cr7" affiliationRef="#aff-1-1"><personName><givenNames>G.‐Y.</givenNames><familyName>LIANG</familyName></personName></creator><creator creatorRole="author" xml:id="cr8" affiliationRef="#aff-1-1"><personName><givenNames>R.‐M.</givenNames><familyName>YUAN</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="aff-1-1" countryCode="CN"><unparsedAffiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en"><keyword xml:id="k1">antioxidant defence</keyword><keyword xml:id="k2">growth</keyword><keyword xml:id="k3">histology</keyword><keyword xml:id="k4"><i>Micropterus salmoides</i></keyword><keyword xml:id="k5">oxidized fish oil</keyword></keywordGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>Four isonitrogenous and isolipidic diets containing fresh fish oil (peroxide value, POV: 11.5 meq kg<sup>−1</sup>, diet FR) and three degrees of oxidized fish oil (POV: 132, 277 and 555 meq kg<sup>−1</sup>, diet OX<sub>132</sub>, OX<sub>277</sub> and OX<sub>555</sub>, respectively) were formulated to investigate the effects of dietary oxidized fish oil on growth performance, body composition, antioxidant defence mechanism and liver histology of juvenile largemouth bass. After a 12‐week feeding trail, a proportion of approximately 9% of <i>Micropterus salmoides</i> showed inflammation and haemorrhage at the base of dorsal, pectoral and tail fin in both groups OX<sub>277</sub> and OX<sub>555</sub>. Fish fed oxidized oil diets obtained significantly higher (<i>P </i><<i> </i>0.05) weight gain and specific growth rate because of their remarkable higher feed intakes, compared with the fresh oil receiving group. The analysis of biometric parameters and body composition indicated significant differences (<i>P </i><<i> </i>0.05) in various test diets. The activities of hepatic catalase and superoxide dismutase were significantly stimulated (<i>P </i><<i> </i>0.05) by oxidized oil ingestion. Hepatic glutathione peroxidase, glutathione reductase and glutathione‐S‐transferase activities were significantly higher (<i>P </i><<i> </i>0.05), and liver glutathione content was markedly lower (<i>P </i><<i> </i>0.05) in group OX<sub>555</sub> than the other treatments. Oxidized oil consumption resulted in marked depletion (<i>P </i><<i> </i>0.05) of vitamin E concentration in plasma, liver and muscle tissue, increased plasma and muscle malondialdehyde content along with decreased haematocrit value. Histological examinations indicated that hepatocytes with lipid vacuoles and nuclear migration were shown in groups OX<sub>277</sub> and OX<sub>555</sub>. The overall results in this study suggested that an increased oxidative stress in <i>M. salmoides</i> fed oxidized lipid may account for their stimulated hepatic antioxidant defences, vitamin E depletion in plasma and certain tissues, and pathological changes. The detrimental effect of oxidation products on fish health and the unexpectedly enhanced feed intake of oxidized feeds in <i>M. salmoides</i> underline the importance that cares should be taken to minimize dietary oxidation products to the greatest extent possible.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Effect of dietary oxidized fish oil on growth performance, body composition, antioxidant defence mechanism and liver histology of juvenile largemouth bass Micropterus salmoides</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Oxidized fish oil, growth, antioxidant defense, histology, M. salmoides</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Effect of dietary oxidized fish oil on growth performance, body composition, antioxidant defence mechanism and liver histology of juvenile largemouth bass Micropterus salmoides</title></titleInfo><name type="personal"><namePart type="given">Y.‐J.</namePart><namePart type="family">CHEN</namePart><affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Y.‐J.</namePart><namePart type="family">LIU</namePart><affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">H.‐J.</namePart><namePart type="family">YANG</namePart><affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Y.</namePart><namePart type="family">YUAN</namePart><affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">F.‐J.</namePart><namePart type="family">LIU</namePart><affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">L.‐X.</namePart><namePart type="family">TIAN</namePart><affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">G.‐Y.</namePart><namePart type="family">LIANG</namePart><affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">R.‐M.</namePart><namePart type="family">YUAN</namePart><affiliation>Nutrition Laboratory, Institute of Aquatic Economical Animals, School of Life Science, Sun Yat‐Sen University, Guangzhou, China</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">2012-06</dateIssued><edition>Received 6 April 2011, accepted 4 July 2011</edition><copyrightDate encoding="w3cdtf">2012</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">1</extent><extent unit="tables">7</extent></physicalDescription><abstract lang="en">Four isonitrogenous and isolipidic diets containing fresh fish oil (peroxide value, POV: 11.5 meq kg−1, diet FR) and three degrees of oxidized fish oil (POV: 132, 277 and 555 meq kg−1, diet OX132, OX277 and OX555, respectively) were formulated to investigate the effects of dietary oxidized fish oil on growth performance, body composition, antioxidant defence mechanism and liver histology of juvenile largemouth bass. After a 12‐week feeding trail, a proportion of approximately 9% of Micropterus salmoides showed inflammation and haemorrhage at the base of dorsal, pectoral and tail fin in both groups OX277 and OX555. Fish fed oxidized oil diets obtained significantly higher (P < 0.05) weight gain and specific growth rate because of their remarkable higher feed intakes, compared with the fresh oil receiving group. The analysis of biometric parameters and body composition indicated significant differences (P < 0.05) in various test diets. The activities of hepatic catalase and superoxide dismutase were significantly stimulated (P < 0.05) by oxidized oil ingestion. Hepatic glutathione peroxidase, glutathione reductase and glutathione‐S‐transferase activities were significantly higher (P < 0.05), and liver glutathione content was markedly lower (P < 0.05) in group OX555 than the other treatments. Oxidized oil consumption resulted in marked depletion (P < 0.05) of vitamin E concentration in plasma, liver and muscle tissue, increased plasma and muscle malondialdehyde content along with decreased haematocrit value. Histological examinations indicated that hepatocytes with lipid vacuoles and nuclear migration were shown in groups OX277 and OX555. The overall results in this study suggested that an increased oxidative stress in M. salmoides fed oxidized lipid may account for their stimulated hepatic antioxidant defences, vitamin E depletion in plasma and certain tissues, and pathological changes. The detrimental effect of oxidation products on fish health and the unexpectedly enhanced feed intake of oxidized feeds in M. salmoides underline the importance that cares should be taken to minimize dietary oxidation products to the greatest extent possible.</abstract><subject lang="en"><genre>keywords</genre><topic>antioxidant defence</topic><topic>growth</topic><topic>histology</topic><topic>Micropterus salmoides</topic><topic>oxidized fish oil</topic></subject><relatedItem type="host"><titleInfo><title>Aquaculture Nutrition</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">1353-5773</identifier><identifier type="eISSN">1365-2095</identifier><identifier type="DOI">10.1111/(ISSN)1365-2095</identifier><identifier type="PublisherID">ANU</identifier><part><date>2012</date><detail type="volume"><caption>vol.</caption><number>18</number></detail><detail type="issue"><caption>no.</caption><number>3</number></detail><extent unit="pages"><start>321</start><end>331</end><total>11</total></extent></part></relatedItem><identifier type="istex">1493A86691CC39787E670C5261C048862B2F8F6A</identifier><identifier type="DOI">10.1111/j.1365-2095.2011.00900.x</identifier><identifier type="ArticleID">ANU900</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2011 Blackwell Publishing Ltd</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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