The Interaction Between Dietary Valine and Tryptophan Content and Their Effect on the Performance of Piglets
Identifieur interne : 000071 ( OpenAccess/Analysis ); précédent : 000070; suivant : 000072The Interaction Between Dietary Valine and Tryptophan Content and Their Effect on the Performance of Piglets
Auteurs : Sam MilletSource :
- Animals : an Open Access Journal from MDPI [ 2076-2615 ] ; 2012.
Abstract
To optimize animal performance, pig diets need the right amount of all essential amino acids. Usually, the ideal amino acid profile is used: If the dietary concentration of one particular amino acid is too low, other amino acids will not be used efficiently. In this experiment it was shown that amino acids that stimulate the feed intake may improve the performance of pigs, even if other amino acids are not at the optimal level.
Four experimental diets for newly weaned pigs were formulated: (1) low valine and low tryptophan; (2) low valine and high tryptophan; (3) high valine and low tryptophan and (4) high valine and high tryptophan. Dietary standardized ileal digestible (SID) lysine content was 1.06 g/kg. The SID valine to SID lysine ratio was 0.58 and 0.67 for the low and high valine diets, respectively, and SID tryptophan to SID lysine ratios were 0.19 and 0.22 for the low and high tryptophan diets, respectively. In total, 64 pens of 6 pigs (3 barrows and 3 gilts) were divided over the four experimental treatments. No interaction between dietary supply of valine and tryptophan was observed (
Url:
DOI: 10.3390/ani2010076
PubMed: 26486778
PubMed Central: 4494274
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">The Interaction Between Dietary Valine and Tryptophan Content and Their Effect on the Performance of Piglets</title><author><name sortKey="Millet, Sam" sort="Millet, Sam" uniqKey="Millet S" first="Sam" last="Millet">Sam Millet</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">26486778</idno><idno type="pmc">4494274</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4494274</idno><idno type="RBID">PMC:4494274</idno><idno type="doi">10.3390/ani2010076</idno><date when="2012">2012</date><idno type="wicri:Area/Pmc/Corpus">000030</idno><idno type="wicri:Area/Pmc/Curation">000030</idno><idno type="wicri:Area/Pmc/Checkpoint">000303</idno><idno type="wicri:Area/Ncbi/Merge">000370</idno><idno type="wicri:Area/Ncbi/Curation">000370</idno><idno type="wicri:Area/Ncbi/Checkpoint">000370</idno><idno type="wicri:Area/Main/Merge">000744</idno><idno type="wicri:Area/Main/Curation">000743</idno><idno type="wicri:Area/Main/Exploration">000743</idno><idno type="wicri:Area/OpenAccess/Extraction">000071</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">The Interaction Between Dietary Valine and Tryptophan Content and Their Effect on the Performance of Piglets</title><author><name sortKey="Millet, Sam" sort="Millet, Sam" uniqKey="Millet S" first="Sam" last="Millet">Sam Millet</name></author></analytic><series><title level="j">Animals : an Open Access Journal from MDPI</title><idno type="eISSN">2076-2615</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Simple Summary</title><p>To optimize animal performance, pig diets
need the right amount of all essential amino acids. Usually, the ideal amino
acid profile is used: If the dietary concentration of one particular amino acid
is too low, other amino acids will not be used efficiently. In this experiment
it was shown that amino acids that stimulate the feed intake may improve the performance of pigs, even if
other amino acids are not at the optimal level.</p></sec><sec><title>Abstract</title><p>Four experimental diets for newly weaned pigs were formulated: (1) low valine and low tryptophan; (2) low valine and high tryptophan; (3) high valine and low tryptophan and (4) high valine and high tryptophan. Dietary standardized ileal digestible (SID) lysine content was 1.06 g/kg. The SID valine to SID lysine ratio was 0.58 and 0.67 for the low and high valine diets, respectively, and SID tryptophan to SID lysine ratios were 0.19 and 0.22 for the low and high tryptophan diets, respectively. In total, 64 pens of 6 pigs (3 barrows and 3 gilts) were divided over the four experimental treatments. No interaction between dietary supply of valine and tryptophan was observed (<italic>P</italic> > 0.1 for all parameters). Increasing the dietary valine content increased the daily feed intake, daily gain and gain:feed (<italic>P</italic> < 0.001 for all three parameters). Increasing the dietary tryptophan content improved gain:feed during the first 2 weeks (<italic>P</italic> < 0.05) and overall (<italic>P</italic> < 0.05). Valine supply had a greater effect on performance results than tryptophan supply. It may thus be beneficial to provide a diet with an optimal dietary concentration of valine even if other amino acids are at suboptimal dietary levels.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Noblet, J" uniqKey="Noblet J">J. Noblet</name></author><author><name sortKey="Van Milgen, J" uniqKey="Van Milgen J">J. Van Milgen</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Henry, Y" uniqKey="Henry Y">Y. Henry</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Bikker, P" uniqKey="Bikker P">P. Bikker</name></author><author><name sortKey="Karabinas, V" uniqKey="Karabinas V">V. 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Seeley</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Millet, S" uniqKey="Millet S">S. Millet</name></author><author><name sortKey="Langendries, K" uniqKey="Langendries K">K. Langendries</name></author><author><name sortKey="Aluwe, M" uniqKey="Aluwe M">M. Aluwé</name></author><author><name sortKey="De Brabander, D L" uniqKey="De Brabander D">D.L. De Brabander</name></author></analytic></biblStruct></listBibl></div1></back></TEI><affiliations><list></list><tree><noCountry><name sortKey="Millet, Sam" sort="Millet, Sam" uniqKey="Millet S" first="Sam" last="Millet">Sam Millet</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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