Apparent ammonia-nitrogen production rates of white sturgeon (acipenser transmontanus) in commercial aquaculture systems
Identifieur interne : 001900 ( Main/Merge ); précédent : 001899; suivant : 001901Apparent ammonia-nitrogen production rates of white sturgeon (acipenser transmontanus) in commercial aquaculture systems
Auteurs : S. L. Thomas [États-Unis] ; R. H. Piedrahita [États-Unis]Source :
- Aquacultural engineering [ 0144-8609 ] ; 1998.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Azote, Pisciculture.
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Abstract
Ammonia production rates of white sturgeon (Acipenser transmontanus) were measured at three commercial farms in the Sacramento, California area. Mean daily ammonia-nitrogen production (RNH3) values ranged from 1.5 to 27.6 mg total ammonia-nitrogen (TAN) (kg fish)-1 h-1 for sturgeon ranging in size from 0.09 to 3.8 kg. Peak hourly average ammonia production rates were observed to occur 2-6 h after the consumption of a meal, reaching values as high as 1.4 times the mean daily values. Multiple regression analysis determined that 87% of the variations in the RNH3 values could be attributed to variations in protein ration, and the protein ration was the only variable considered which was significant in predicting the mean daily ammonia production rates.
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Pascal:98-0264604Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Apparent ammonia-nitrogen production rates of white sturgeon (acipenser transmontanus) in commercial aquaculture systems</title><author><name sortKey="Thomas, S L" sort="Thomas, S L" uniqKey="Thomas S" first="S. L." last="Thomas">S. L. Thomas</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Biological and Agricultural Engineering, University of California</s1><s2>Davis, CA</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation></author><author><name sortKey="Piedrahita, R H" sort="Piedrahita, R H" uniqKey="Piedrahita R" first="R. H." last="Piedrahita">R. H. Piedrahita</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Biological and Agricultural Engineering, University of California</s1><s2>Davis, CA</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">98-0264604</idno><date when="1998">1998</date><idno type="stanalyst">PASCAL 98-0264604 INIST</idno><idno type="RBID">Pascal:98-0264604</idno><idno type="wicri:Area/PascalFrancis/Corpus">000417</idno><idno type="wicri:Area/PascalFrancis/Curation">000694</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000413</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000413</idno><idno type="wicri:doubleKey">0144-8609:1998:Thomas S:apparent:ammonia:nitrogen</idno><idno type="wicri:Area/Main/Merge">001900</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Apparent ammonia-nitrogen production rates of white sturgeon (acipenser transmontanus) in commercial aquaculture systems</title><author><name sortKey="Thomas, S L" sort="Thomas, S L" uniqKey="Thomas S" first="S. L." last="Thomas">S. L. Thomas</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Biological and Agricultural Engineering, University of California</s1><s2>Davis, CA</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation></author><author><name sortKey="Piedrahita, R H" sort="Piedrahita, R H" uniqKey="Piedrahita R" first="R. H." last="Piedrahita">R. H. Piedrahita</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Biological and Agricultural Engineering, University of California</s1><s2>Davis, CA</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Californie</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Aquacultural engineering</title><title level="j" type="abbreviated">Aquac. eng.</title><idno type="ISSN">0144-8609</idno><imprint><date when="1998">1998</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Aquacultural engineering</title><title level="j" type="abbreviated">Aquac. eng.</title><idno type="ISSN">0144-8609</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acipenser transmontanus</term><term>Ammonia</term><term>Animal waste</term><term>California</term><term>Daily</term><term>Excretion</term><term>Metabolism</term><term>Multiple regression</term><term>Nitrogen</term><term>Pisciculture</term><term>Production rate</term><term>Regression analysis</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Ammoniac</term><term>Azote</term><term>Taux production</term><term>Excrétion</term><term>Métabolisme</term><term>Déchet animal</term><term>Quotidien</term><term>Pisciculture</term><term>Analyse régression</term><term>Régression multiple</term><term>Californie</term><term>Acipenser transmontanus</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Azote</term><term>Pisciculture</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Ammonia production rates of white sturgeon (Acipenser transmontanus) were measured at three commercial farms in the Sacramento, California area. Mean daily ammonia-nitrogen production (RNH3) values ranged from 1.5 to 27.6 mg total ammonia-nitrogen (TAN) (kg fish)<sup>-1</sup> h<sup>-1</sup> for sturgeon ranging in size from 0.09 to 3.8 kg. Peak hourly average ammonia production rates were observed to occur 2-6 h after the consumption of a meal, reaching values as high as 1.4 times the mean daily values. Multiple regression analysis determined that 87% of the variations in the RNH3 values could be attributed to variations in protein ration, and the protein ration was the only variable considered which was significant in predicting the mean daily ammonia production rates.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Californie</li></region></list><tree><country name="États-Unis"><region name="Californie"><name sortKey="Thomas, S L" sort="Thomas, S L" uniqKey="Thomas S" first="S. L." last="Thomas">S. L. Thomas</name></region><name sortKey="Piedrahita, R H" sort="Piedrahita, R H" uniqKey="Piedrahita R" first="R. H." last="Piedrahita">R. H. Piedrahita</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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