Studies on the nutrition of Siberian sturgeon, Acipenser baeri . II. Utilization of dietary non-protein energy by sturgeon
Identifieur interne : 000993 ( Istex/Corpus ); précédent : 000992; suivant : 000994Studies on the nutrition of Siberian sturgeon, Acipenser baeri . II. Utilization of dietary non-protein energy by sturgeon
Auteurs : F. Médale ; D. Blanc ; S. J. KaushikSource :
- Aquaculture [ 0044-8486 ] ; 1991.
Abstract
Duplicate groups of juvenile Siberian sturgeons (initial body weight 49 g) were fed two experimental diets (crude protein 51% DM; gross energy 22 kJ/g DM) containing either 21.8% lipid and 9.9% crude starch (diet F) or 12.5% lipid and 20% gelatinized starch (diet M) as non-protein energy sources. Growth parameters were followed over a period of 8 weeks; the digestibility of the diets, nitrogen and energy balances and body composition of sturgeons fed the two diets were determined. The digestibility of lipid decreased when the diet contained a high level of fat, so that the available digestible energy (DE) was higher in the diet containing the lower fat level with digestible carbohydrates. This increase in DE led to an increase in fat deposition, even in the muscle. In spite of the difference in DE, metabolic nitrogen losses were not different between the two dietary treatments, suggesting that, in juvenile Siberian sturgeon, dietary lipids can be more efficient in sparing protein compared with dietary carbohydrates. Lipids appeared to be used as energy sources more efficiently than carbohydrates at the metabolic level.
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DOI: 10.1016/0044-8486(91)90213-Q
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Growth parameters were followed over a period of 8 weeks; the digestibility of the diets, nitrogen and energy balances and body composition of sturgeons fed the two diets were determined. The digestibility of lipid decreased when the diet contained a high level of fat, so that the available digestible energy (DE) was higher in the diet containing the lower fat level with digestible carbohydrates. This increase in DE led to an increase in fat deposition, even in the muscle. In spite of the difference in DE, metabolic nitrogen losses were not different between the two dietary treatments, suggesting that, in juvenile Siberian sturgeon, dietary lipids can be more efficient in sparing protein compared with dietary carbohydrates. Lipids appeared to be used as energy sources more efficiently than carbohydrates at the metabolic level.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>F. 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The digestibility of lipid decreased when the diet contained a high level of fat, so that the available digestible energy (DE) was higher in the diet containing the lower fat level with digestible carbohydrates. This increase in DE led to an increase in fat deposition, even in the muscle. In spite of the difference in DE, metabolic nitrogen losses were not different between the two dietary treatments, suggesting that, in juvenile Siberian sturgeon, dietary lipids can be more efficient in sparing protein compared with dietary carbohydrates. 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Growth parameters were followed over a period of 8 weeks; the digestibility of the diets, nitrogen and energy balances and body composition of sturgeons fed the two diets were determined. The digestibility of lipid decreased when the diet contained a high level of fat, so that the available digestible energy (DE) was higher in the diet containing the lower fat level with digestible carbohydrates. This increase in DE led to an increase in fat deposition, even in the muscle. In spite of the difference in DE, metabolic nitrogen losses were not different between the two dietary treatments, suggesting that, in juvenile Siberian sturgeon, dietary lipids can be more efficient in sparing protein compared with dietary carbohydrates. Lipids appeared to be used as energy sources more efficiently than carbohydrates at the metabolic level.</p></abstract><textClass><keywords scheme="keyword"><list><head>article-category</head><item><term>Nutrition</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1991">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/BDCD5BFB1090987C57EC781D80A9DA3C7653FD90/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla"><item-info><jid>AQUA</jid><aid>9190213Q</aid><ce:pii>0044-8486(91)90213-Q</ce:pii><ce:doi>10.1016/0044-8486(91)90213-Q</ce:doi><ce:copyright type="unknown" year="1991"></ce:copyright><ce:doctopics><ce:doctopic><ce:text>Nutrition</ce:text></ce:doctopic></ce:doctopics></item-info><head><ce:title>Studies on the nutrition of Siberian sturgeon, <ce:italic>Acipenser baeri</ce:italic>. II. Utilization of dietary non-protein energy by sturgeon</ce:title><ce:author-group><ce:author><ce:given-name>F.</ce:given-name><ce:surname>Médale</ce:surname></ce:author><ce:author><ce:given-name>D.</ce:given-name><ce:surname>Blanc</ce:surname></ce:author><ce:author><ce:given-name>S.J.</ce:given-name><ce:surname>Kaushik</ce:surname></ce:author><ce:affiliation><ce:textfn>Fish Nutrition Laboratory, INRA, 64310 St-Pée-sur-Nivelle, France</ce:textfn></ce:affiliation></ce:author-group><ce:date-accepted day="26" month="7" year="1990"></ce:date-accepted><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>Duplicate groups of juvenile Siberian sturgeons (initial body weight 49 g) were fed two experimental diets (crude protein 51% DM; gross energy 22 kJ/g DM) containing either 21.8% lipid and 9.9% crude starch (diet F) or 12.5% lipid and 20% gelatinized starch (diet M) as non-protein energy sources. Growth parameters were followed over a period of 8 weeks; the digestibility of the diets, nitrogen and energy balances and body composition of sturgeons fed the two diets were determined.</ce:simple-para><ce:simple-para>The digestibility of lipid decreased when the diet contained a high level of fat, so that the available digestible energy (DE) was higher in the diet containing the lower fat level with digestible carbohydrates. This increase in DE led to an increase in fat deposition, even in the muscle. In spite of the difference in DE, metabolic nitrogen losses were not different between the two dietary treatments, suggesting that, in juvenile Siberian sturgeon, dietary lipids can be more efficient in sparing protein compared with dietary carbohydrates. Lipids appeared to be used as energy sources more efficiently than carbohydrates at the metabolic level.</ce:simple-para></ce:abstract-sec></ce:abstract></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>Studies on the nutrition of Siberian sturgeon, Acipenser baeri . II. Utilization of dietary non-protein energy by sturgeon</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>Studies on the nutrition of Siberian sturgeon,</title></titleInfo><name type="personal"><namePart type="given">F.</namePart><namePart type="family">Médale</namePart><affiliation>Fish Nutrition Laboratory, INRA, 64310 St-Pée-sur-Nivelle, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">D.</namePart><namePart type="family">Blanc</namePart><affiliation>Fish Nutrition Laboratory, INRA, 64310 St-Pée-sur-Nivelle, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">S.J.</namePart><namePart type="family">Kaushik</namePart><affiliation>Fish Nutrition Laboratory, INRA, 64310 St-Pée-sur-Nivelle, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1991</dateIssued><copyrightDate encoding="w3cdtf">1991</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Duplicate groups of juvenile Siberian sturgeons (initial body weight 49 g) were fed two experimental diets (crude protein 51% DM; gross energy 22 kJ/g DM) containing either 21.8% lipid and 9.9% crude starch (diet F) or 12.5% lipid and 20% gelatinized starch (diet M) as non-protein energy sources. Growth parameters were followed over a period of 8 weeks; the digestibility of the diets, nitrogen and energy balances and body composition of sturgeons fed the two diets were determined. The digestibility of lipid decreased when the diet contained a high level of fat, so that the available digestible energy (DE) was higher in the diet containing the lower fat level with digestible carbohydrates. This increase in DE led to an increase in fat deposition, even in the muscle. In spite of the difference in DE, metabolic nitrogen losses were not different between the two dietary treatments, suggesting that, in juvenile Siberian sturgeon, dietary lipids can be more efficient in sparing protein compared with dietary carbohydrates. Lipids appeared to be used as energy sources more efficiently than carbohydrates at the metabolic level.</abstract><subject><genre>article-category</genre><topic>Nutrition</topic></subject><relatedItem type="host"><titleInfo><title>Aquaculture</title></titleInfo><titleInfo type="abbreviated"><title>AQUA</title></titleInfo><genre type="journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">19910301</dateIssued></originInfo><identifier type="ISSN">0044-8486</identifier><identifier type="PII">S0044-8486(00)X0447-4</identifier><part><date>19910301</date><detail type="volume"><number>93</number><caption>vol.</caption></detail><detail type="issue"><number>2</number><caption>no.</caption></detail><extent unit="issue pages"><start>101</start><end>200</end></extent><extent unit="pages"><start>143</start><end>154</end></extent></part></relatedItem><identifier type="istex">BDCD5BFB1090987C57EC781D80A9DA3C7653FD90</identifier><identifier type="DOI">10.1016/0044-8486(91)90213-Q</identifier><identifier type="PII">0044-8486(91)90213-Q</identifier><recordInfo><recordContentSource>ELSEVIER</recordContentSource></recordInfo></mods></metadata></istex></record>Pour manipuler ce document sous Unix (Dilib)
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