Effects of continuous or intermittent ractopamine HCl (paylean1) use on pig growth performance in late finishing

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dc.contributor.author Neill, C.R.
dc.contributor.author Groesbeck, C.N.
dc.contributor.author Brown, K.R.
dc.contributor.author Tokach, Michael D.
dc.contributor.author Goodband, Robert D.
dc.contributor.author Nelssen, Jim L.
dc.contributor.author DeRouchey, Joel M.
dc.contributor.author Dritz, Steven S.
dc.date.accessioned 2009-10-29T18:30:41Z
dc.date.available 2009-10-29T18:30:41Z
dc.date.issued 2009-10-29T18:30:41Z
dc.identifier.uri http://hdl.handle.net/2097/1978
dc.description Swine research, 2005 is known as Swine day, 2005 en
dc.description.abstract A total of 110 barrows (PIC L210 × L42) with an initial weight of 154.4 lb were used in a 56-d feeding trial to evaluate the effects of continuously feeding ractopamine HCl (Paylean; 9 g/ton), withdrawing Paylean, or intermittent Paylean feeding on finishing pig performance. There were five experimental treatments fed the last 56 d before marketing; A) control diet (no Paylean) fed for 56 d; B) Paylean diet (9 g/ton) fed for 56 d; C) Paylean fed for 21 d, control for 14 d, then Paylean for 21 d; D) control fed for 7 d, Paylean fed for 21 d, control fed for 7 d, then Paylean fed for 21 d; and E) control fed for 35 d, then Paylean fed for 21 d. Pigs fed Paylean for 21 d then withdrawn for 7 or 14 d and then re-fed for 21 d (Treatments C and D) had similar response to those fed Paylean for only the last 21 d before market (Treatment E). Pigs fed these three treatments had final weight numerically increased by 3 to 5 lb over that of pigs continuously fed Paylean for the entire 56 d. During the period when Paylean was withdrawn (7 or 14 d), pigs lost much of the benefit that had been gained from Paylean feeding. But pigs fed Paylean again later seem to respond similarly to pigs that had never had Paylean in the diet. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine day, 2005 en_US
dc.relation.isPartOf Summary Publication of Report of Progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 964 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 06-63-S en_US
dc.subject Finishing pig en_US
dc.subject Paylean en_US
dc.subject Withdrawal en_US
dc.subject Swine en_US
dc.title Effects of continuous or intermittent ractopamine HCl (paylean1) use on pig growth performance in late finishing en_US
dc.type Conference paper en_US
dc.date.published 2005 en_US
dc.citation.epage 170 en_US
dc.citation.spage 168 en_US
dc.contributor.authoreid mtokach en_US
dc.contributor.authoreid dritz en_US
dc.contributor.authoreid goodband en_US
dc.contributor.authoreid jnelssen en_US
dc.contributor.authoreid jderouch en_US

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