Effect of dietary starch source (normal versus waxy) and protein levels on the performance of white sea bream Diplodus sargus (Linnaeus) juveniles
Identifieur interne : 001145 ( Istex/Corpus ); précédent : 001144; suivant : 001146Effect of dietary starch source (normal versus waxy) and protein levels on the performance of white sea bream Diplodus sargus (Linnaeus) juveniles
Auteurs : Rui Sá ; Pedro Pousão-Ferreira ; Aires Oliva-TelesSource :
- Aquaculture Research [ 1355-557X ] ; 2008-07.
English descriptors
Abstract
An experiment was performed to evaluate the growth performance and feed utilization of white sea bream juveniles (initial weight, 14 g) fed diets of cornstarch of different origins (normal and waxy). Four experimental diets were formulated to be isolipidic and to contain normal and waxy starch (26% or 42%) at two protein (36% and 48%) levels. The growth trial lasted 15 weeks and, at the end of the trial, there were no differences in the growth rate among groups. At the highest dietary starch level – but not at the lowest level – the feed efficiency ratio and PER were significantly lower in fish fed the waxy starch diet. Protein efficiency ratio and N retention (% N intake) were not affected by starch source but were significantly higher in the diets with a lower protein content. No differences in energy retention (% energy intake) were observed among groups. Except for the protein content, which was significantly higher in fish fed diets with a high protein level, no other differences were observed among groups in whole‐body composition. Hepatosomatic Index (HSI) was significantly higher in fish fed high‐starch diets, but there were no differences in visceral indices among groups. The apparent digestibility coefficients of protein and energy were not affected by the dietary starch level, but were significantly lower in diets including waxy starch. Glutamate dehydrogenase activity was higher in fish fed high‐protein diets, but it was not affected by dietary starch source. Alanine aminotransferase and aspartate aminotransferase activities were not different among groups. Glucose 6‐phosphate dehydrogenase, malic enzyme and fatty acid synthetase activities were not affected by the dietary starch level, but were significantly lower in fish fed waxy starch. The results of this study indicate that diets for white sea bream juveniles may include up to 42% starch without negative effects on fish performance. Moreover, normal starch appears to be more efficiently used as an energy source than waxy starch.
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DOI: 10.1111/j.1365-2109.2008.01967.x
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ISTEX:CBA344EC6129433503681333B9A8E50D7BE57C97Le document en format XML
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Four experimental diets were formulated to be isolipidic and to contain normal and waxy starch (26% or 42%) at two protein (36% and 48%) levels. The growth trial lasted 15 weeks and, at the end of the trial, there were no differences in the growth rate among groups. At the highest dietary starch level – but not at the lowest level – the feed efficiency ratio and PER were significantly lower in fish fed the waxy starch diet. Protein efficiency ratio and N retention (% N intake) were not affected by starch source but were significantly higher in the diets with a lower protein content. No differences in energy retention (% energy intake) were observed among groups. Except for the protein content, which was significantly higher in fish fed diets with a high protein level, no other differences were observed among groups in whole‐body composition. Hepatosomatic Index (HSI) was significantly higher in fish fed high‐starch diets, but there were no differences in visceral indices among groups. The apparent digestibility coefficients of protein and energy were not affected by the dietary starch level, but were significantly lower in diets including waxy starch. Glutamate dehydrogenase activity was higher in fish fed high‐protein diets, but it was not affected by dietary starch source. Alanine aminotransferase and aspartate aminotransferase activities were not different among groups. Glucose 6‐phosphate dehydrogenase, malic enzyme and fatty acid synthetase activities were not affected by the dietary starch level, but were significantly lower in fish fed waxy starch. The results of this study indicate that diets for white sea bream juveniles may include up to 42% starch without negative effects on fish performance. 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The apparent digestibility coefficients of protein and energy were not affected by the dietary starch level, but were significantly lower in diets including waxy starch. Glutamate dehydrogenase activity was higher in fish fed high‐protein diets, but it was not affected by dietary starch source. Alanine aminotransferase and aspartate aminotransferase activities were not different among groups. Glucose 6‐phosphate dehydrogenase, malic enzyme and fatty acid synthetase activities were not affected by the dietary starch level, but were significantly lower in fish fed waxy starch. The results of this study indicate that diets for white sea bream juveniles may include up to 42% starch without negative effects on fish performance. 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Four experimental diets were formulated to be isolipidic and to contain normal and waxy starch (26% or 42%) at two protein (36% and 48%) levels. The growth trial lasted 15 weeks and, at the end of the trial, there were no differences in the growth rate among groups. At the highest dietary starch level – but not at the lowest level – the feed efficiency ratio and PER were significantly lower in fish fed the waxy starch diet. Protein efficiency ratio and N retention (% N intake) were not affected by starch source but were significantly higher in the diets with a lower protein content. No differences in energy retention (% energy intake) were observed among groups. Except for the protein content, which was significantly higher in fish fed diets with a high protein level, no other differences were observed among groups in whole‐body composition. Hepatosomatic Index (HSI) was significantly higher in fish fed high‐starch diets, but there were no differences in visceral indices among groups. The apparent digestibility coefficients of protein and energy were not affected by the dietary starch level, but were significantly lower in diets including waxy starch. Glutamate dehydrogenase activity was higher in fish fed high‐protein diets, but it was not affected by dietary starch source. Alanine aminotransferase and aspartate aminotransferase activities were not different among groups. Glucose 6‐phosphate dehydrogenase, malic enzyme and fatty acid synthetase activities were not affected by the dietary starch level, but were significantly lower in fish fed waxy starch. The results of this study indicate that diets for white sea bream juveniles may include up to 42% starch without negative effects on fish performance. Moreover, normal starch appears to be more efficiently used as an energy source than waxy starch.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>keywords</head><item><term>carbohydrates</term></item><item><term>growth performance</term></item><item><term>enzymes</term></item><item><term>digestibility</term></item><item><term>protein sparing</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2008-07">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/CBA344EC6129433503681333B9A8E50D7BE57C97/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)1365-2109</doi><issn type="print">1355-557X</issn><issn type="electronic">1365-2109</issn><idGroup><id type="product" value="ARE"></id><id type="publisherDivision" value="ST"></id></idGroup><titleGroup><title type="main" sort="AQUACULTURE RESEARCH">Aquaculture Research</title></titleGroup></publicationMeta><publicationMeta level="part" position="07110"><doi origin="wiley">10.1111/are.2008.39.issue-10</doi><numberingGroup><numbering type="journalVolume" number="39">39</numbering><numbering type="journalIssue" number="10">10</numbering></numberingGroup><coverDate startDate="2008-07">July 2008</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="7" status="forIssue"><doi origin="wiley">10.1111/j.1365-2109.2008.01967.x</doi><idGroup><id type="unit" value="ARE1967"></id><id type="supplier" value="1967"></id></idGroup><countGroup><count type="pageTotal" number="8"></count></countGroup><titleGroup><title type="tocHeading1">Original articles</title></titleGroup><copyright>© 2008 The Authors. Journal Compilation © 2008 Blackwell Publishing Ltd</copyright><eventGroup><event type="firstOnline" date="2008-05-05"></event><event type="publishedOnlineFinalForm" date="2008-07-10"></event><event type="publishedOnlineAcceptedOrEarlyUnpaginated" date="2008-05-05"></event><event type="xmlConverted" agent="Converter:BPG_TO_WML3G version:3.1.3 standalone mode:FullText" date="2012-04-27"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-01-06"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-15"></event></eventGroup><numberingGroup><numbering type="pageFirst" number="1069">1069</numbering><numbering type="pageLast" number="1076">1076</numbering></numberingGroup><correspondenceTo><b>Correspondence:</b> A Oliva‐Teles, Departamento de Zoologia e Antropologia, Faculdade de Ciências, Universidade do Porto, Pr. Gomes Teixeira, 4099‐002 Porto, Portugal. E‐mail: <email normalForm="aoteles@fc.up.pt">aoteles@fc.up.pt</email></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:ARE.ARE1967.pdf"></link></linkGroup></publicationMeta><contentMeta><countGroup><count type="figureTotal" number="0"></count><count type="tableTotal" number="5"></count><count type="formulaTotal" number="0"></count><count type="referenceTotal" number="35"></count><count type="wordTotal" number="6320"></count><count type="linksCrossRef" number="72"></count></countGroup><titleGroup><title type="main">Effect of dietary starch source (normal versus waxy) and protein levels on the performance of white sea bream <i>Diplodus sargus</i> (Linnaeus) juveniles</title><title type="shortAuthors">R Sá<i>et al.</i></title><title type="short">Dietary starch source and protein level in white sea bream</title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#a1 #a2"><personName><givenNames>Rui</givenNames><familyName>Sá</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#a3"><personName><givenNames>Pedro</givenNames><familyName>Pousão‐Ferreira</familyName></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#a1 #a2"><personName><givenNames>Aires</givenNames><familyName>Oliva‐Teles</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="a1" countryCode="PT"><unparsedAffiliation>Departamento de Zoologia e Antropologia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal</unparsedAffiliation></affiliation><affiliation xml:id="a2" countryCode="PT"><unparsedAffiliation>CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Porto, Portugal</unparsedAffiliation></affiliation><affiliation xml:id="a3" countryCode="PT"><unparsedAffiliation>IPIMAR/CIMSul, Olhão, Portugal</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en"><keyword xml:id="k1">carbohydrates</keyword><keyword xml:id="k2">growth performance</keyword><keyword xml:id="k3">enzymes</keyword><keyword xml:id="k4">digestibility</keyword><keyword xml:id="k5">protein sparing</keyword></keywordGroup><abstractGroup><abstract type="main" xml:lang="en"><title type="main">Abstract</title><p>An experiment was performed to evaluate the growth performance and feed utilization of white sea bream juveniles (initial weight, 14 g) fed diets of cornstarch of different origins (normal and waxy). Four experimental diets were formulated to be isolipidic and to contain normal and waxy starch (26% or 42%) at two protein (36% and 48%) levels. The growth trial lasted 15 weeks and, at the end of the trial, there were no differences in the growth rate among groups. At the highest dietary starch level – but not at the lowest level – the feed efficiency ratio and PER were significantly lower in fish fed the waxy starch diet. Protein efficiency ratio and N retention (% N intake) were not affected by starch source but were significantly higher in the diets with a lower protein content. No differences in energy retention (% energy intake) were observed among groups. Except for the protein content, which was significantly higher in fish fed diets with a high protein level, no other differences were observed among groups in whole‐body composition. Hepatosomatic Index (HSI) was significantly higher in fish fed high‐starch diets, but there were no differences in visceral indices among groups. The apparent digestibility coefficients of protein and energy were not affected by the dietary starch level, but were significantly lower in diets including waxy starch. Glutamate dehydrogenase activity was higher in fish fed high‐protein diets, but it was not affected by dietary starch source. Alanine aminotransferase and aspartate aminotransferase activities were not different among groups. Glucose 6‐phosphate dehydrogenase, malic enzyme and fatty acid synthetase activities were not affected by the dietary starch level, but were significantly lower in fish fed waxy starch. The results of this study indicate that diets for white sea bream juveniles may include up to 42% starch without negative effects on fish performance. Moreover, normal starch appears to be more efficiently used as an energy source than waxy starch.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Effect of dietary starch source (normal versus waxy) and protein levels on the performance of white sea bream Diplodus sargus (Linnaeus) juveniles</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Dietary starch source and protein level in white sea bream</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Effect of dietary starch source (normal versus waxy) and protein levels on the performance of white sea bream Diplodus sargus (Linnaeus) juveniles</title></titleInfo><name type="personal"><namePart type="given">Rui</namePart><namePart type="family">Sá</namePart><affiliation>Departamento de Zoologia e Antropologia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal</affiliation><affiliation>CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Porto, Portugal</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Pedro</namePart><namePart type="family">Pousão‐Ferreira</namePart><affiliation>IPIMAR/CIMSul, Olhão, Portugal</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Aires</namePart><namePart type="family">Oliva‐Teles</namePart><affiliation>Departamento de Zoologia e Antropologia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal</affiliation><affiliation>CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Porto, Portugal</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">2008-07</dateIssued><copyrightDate encoding="w3cdtf">2008</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><extent unit="references">35</extent><extent unit="words">6320</extent></physicalDescription><abstract lang="en">An experiment was performed to evaluate the growth performance and feed utilization of white sea bream juveniles (initial weight, 14 g) fed diets of cornstarch of different origins (normal and waxy). Four experimental diets were formulated to be isolipidic and to contain normal and waxy starch (26% or 42%) at two protein (36% and 48%) levels. The growth trial lasted 15 weeks and, at the end of the trial, there were no differences in the growth rate among groups. At the highest dietary starch level – but not at the lowest level – the feed efficiency ratio and PER were significantly lower in fish fed the waxy starch diet. Protein efficiency ratio and N retention (% N intake) were not affected by starch source but were significantly higher in the diets with a lower protein content. No differences in energy retention (% energy intake) were observed among groups. Except for the protein content, which was significantly higher in fish fed diets with a high protein level, no other differences were observed among groups in whole‐body composition. Hepatosomatic Index (HSI) was significantly higher in fish fed high‐starch diets, but there were no differences in visceral indices among groups. The apparent digestibility coefficients of protein and energy were not affected by the dietary starch level, but were significantly lower in diets including waxy starch. Glutamate dehydrogenase activity was higher in fish fed high‐protein diets, but it was not affected by dietary starch source. Alanine aminotransferase and aspartate aminotransferase activities were not different among groups. Glucose 6‐phosphate dehydrogenase, malic enzyme and fatty acid synthetase activities were not affected by the dietary starch level, but were significantly lower in fish fed waxy starch. The results of this study indicate that diets for white sea bream juveniles may include up to 42% starch without negative effects on fish performance. Moreover, normal starch appears to be more efficiently used as an energy source than waxy starch.</abstract><subject lang="en"><genre>keywords</genre><topic>carbohydrates</topic><topic>growth performance</topic><topic>enzymes</topic><topic>digestibility</topic><topic>protein sparing</topic></subject><relatedItem type="host"><titleInfo><title>Aquaculture Research</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">1355-557X</identifier><identifier type="eISSN">1365-2109</identifier><identifier type="DOI">10.1111/(ISSN)1365-2109</identifier><identifier type="PublisherID">ARE</identifier><part><date>2008</date><detail type="volume"><caption>vol.</caption><number>39</number></detail><detail type="issue"><caption>no.</caption><number>10</number></detail><extent unit="pages"><start>1069</start><end>1076</end><total>8</total></extent></part></relatedItem><identifier type="istex">CBA344EC6129433503681333B9A8E50D7BE57C97</identifier><identifier type="DOI">10.1111/j.1365-2109.2008.01967.x</identifier><identifier type="ArticleID">ARE1967</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2008 The Authors. 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