Effects of increasing stocking density on finishing pig performance

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dc.contributor.author Potter, M. L.
dc.contributor.author Tokach, Michael D.
dc.contributor.author DeRouchey, Joel M.
dc.contributor.author Goodband, Robert D.
dc.contributor.author Nelssen, Jim L.
dc.contributor.author Dritz, Steven S.
dc.date.accessioned 2010-11-22T16:16:35Z
dc.date.available 2010-11-22T16:16:35Z
dc.date.issued 2010-11-22
dc.identifier.uri http://hdl.handle.net/2097/6545
dc.description.abstract A total of 1,201 finishing pigs (initially 63 lb) were used in a 99-d growth trial to evaluate the effects of increasing stocking density on finishing pig growth performance. Single-sex pens of barrows and gilts were blocked to minimize variation due to gender and barn location. There were 12 pens per block with 3 replication pens per treatment within each block. Pens of pigs were randomly allotted to 1 of 4 treatments with 12 pens per treatment. Treatments were stocking pens with 22, 24, 26, or 28 pigs each, allowing 8.2, 7.5, 6.9, and 6.4 ft2 per pig, respectively. Pens of pigs were weighed and feed intake was determined on d 0, 14, 28, 42, 56, 70, 84, and 99 to calculate ADG, ADFI, and F/G. Pigs were fed common diets throughout the trial. No adjustments were made at the pen level to account for space increases because of removed pigs. Overall, as stocking density increased, ADG and ADFI decreased (linear; P < 0.001), but there were no differences (linear; P = 0.99) in F/G. These performance differences resulted in off-test (d 99) pig weights decreasing (linear, P < 0.001) as stocking density increased. These data indicate that in this commercial barn, finisher pig ADG and ADFI improved as the number of pigs in each pen was reduced. However, based on an economic model, income over feed and facility cost per pig placed was numerically optimized when pens were stocked with 24 pigs each, allowing 7.5 ft2 of floor space per pig. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine Day, 2010 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 11-016-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1038 en_US
dc.subject Swine en_US
dc.subject Growth en_US
dc.subject Space allowance en_US
dc.subject Stocking density en_US
dc.title Effects of increasing stocking density on finishing pig performance en_US
dc.type Conference paper en_US
dc.date.published 2010 en_US
dc.citation.epage 222 en_US
dc.citation.spage 216 en_US
dc.description.conference Swine Day, Manhattan, KS, November 18, 2010 en_US
dc.contributor.authoreid dritz en_US
dc.contributor.authoreid mtokach en_US
dc.contributor.authoreid jderouch en_US
dc.contributor.authoreid goodband en_US
dc.contributor.authoreid jnelssen en_US

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