The optimal true ileal digestible threonine requirement for nursery pigs between 24 to 49 lb

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dc.contributor.author James, B.W.
dc.contributor.author Usry, J.L.
dc.contributor.author Tokach, Michael D.
dc.contributor.author Goodband, Robert D.
dc.contributor.author Nelssen, Jim L.
dc.contributor.author Dritz, Steven S.
dc.date.accessioned 2010-02-08T18:14:14Z
dc.date.available 2010-02-08T18:14:14Z
dc.date.issued 2010-02-08T18:14:14Z
dc.identifier.uri http://hdl.handle.net/2097/2484
dc.description.abstract A 22-d growth assay was conducted to determine the appropriate true ileal digestible threonine requirement to maximize growth performance of pigs between 24 and 49 lb. The 10 experimental treatments consisted of two basal diets (1.1% and 1.2% true ileal digestible lysine; 16.1% and 17.4% CP) with increasing levels of threonine (50, 55, 60, 65, 70% threonine:lysine). Pigs fed 1.2% true ileal digestible lysine had improved ADG and F/G compared to pigs fed 1.1% lysine, this suggest that the requirement was greater than 1.1% true ileal digestible lysine. There was a threonine × lysine interaction for feed efficiency. Pigs fed 1.1% true ileal digestible lysine had a greater response to increasing levels of threonine than pigs fed the diet containing 1.2% lysine. Increasing levels of threonine had no effect on ADG. Feed efficiency improved with increasing levels of true ileal digestible threonine:lysine and was maximized at 70% and 65% threonine:lysine for pigs fed 1.1% and 1.2% true ileal digestible lysine, respectively. However, the greatest improvements in feed efficiency were observed as the ratio increased to approximately 60%. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine day, 2002 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 03-120-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 897 en_US
dc.subject Threonine en_US
dc.subject Growth Performance en_US
dc.subject Nursery Pigs en_US
dc.subject Swine en_US
dc.title The optimal true ileal digestible threonine requirement for nursery pigs between 24 to 49 lb en_US
dc.type Conference paper en_US
dc.date.published 2002 en_US
dc.citation.epage 69 en_US
dc.citation.spage 66 en_US
dc.description.conference Swine Day, Manhattan, KS, November 14, 2002 en_US
dc.contributor.authoreid mtokach en_US
dc.contributor.authoreid goodband en_US
dc.contributor.authoreid dritz en_US
dc.contributor.authoreid jnelssen en_US

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