Evaluating the removal of pigs from a group and subsequent floor space allowance on the growth performance of heavy-weight finishing pigs

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dc.contributor.author Flohr, Joshua R.
dc.contributor.author Tokach, Michael D.
dc.contributor.author DeRouchey, Joel M.
dc.contributor.author Woodworth, Jason C.
dc.contributor.author Goodband, Robert D.
dc.contributor.author Dritz, Steven S.
dc.date.accessioned 2017-11-30T21:39:00Z
dc.date.available 2017-11-30T21:39:00Z
dc.identifier.uri http://hdl.handle.net/2097/38307
dc.description Citation: Flohr, J. R., Tokach, M. D., DeRouchey, J. M., Woodworth, J. C., Goodband, R. D., & Dritz, S. S. (2016). Evaluating the removal of pigs from a group and subsequent floor space allowance on the growth performance of heavy-weight finishing pigs. Journal of Animal Science, 94(10), 4388-4400. doi:10.2527/jas2016-0407
dc.description.abstract A total of 1,092 finishing pigs (initially 36.3 kg) were used in a 117-d study to evaluate the impact of initial floor space allowance and removal strategy on the growth of pigs up to 140 kg BW. There were 4 experimental treatments with 14 pens per treatment. The first treatment provided 0.91 m(2) per pig (15 pigs/pen). The other 3 treatments initially provided 0.65 m(2) per pig (21 pigs/pen) with 3 different removal strategies. The second treatment (2:2:2) removed the 2 heaviest pigs from pens on d 64, 76, and 95 when floor space allowance was predicted to be limiting. Treatment 3 (2:4) removed the 2 heaviest pigs on d 76 and the 4 heaviest pigs on d 105. Treatment 4 (6) removed the heaviest 6 pigs on d 105. All pigs remaining in pens after removals were fed to d 117. Overall (d 0 to 117), pigs initially provided 0.91 m(2) of floor space had increased (P < 0.05) ADG compared to pigs in pens on the 2: 4 or 6 removal strategy, but ADG was not different compared with pigs on the 2:2:2 removal strategy. Total BW gain per pen was greater (P < 0.05) for pens initially stocked at 0.65 m(2) compared to pens initially stocked at 0.91 m(2). Feed usage per pen was less (P < 0.05) for pens initially stocked at 0.91 m(2) compared to pens initially providing 0.65 m(2) of floor space and on removal strategies; however, feed usage per pig was greater (P < 0.05) for pigs initially stocked at 0.91 m(2) compared to pigs initially stocked at 0.65 m(2) and on removal strategies. Feed usage, on a pig or pen basis, was less (P < 0.05) for pigs on the 2: 2: 2 removal strategy compared to pigs on the 2:4 or the 6 removal strategy. Income over feed and facility cost (IOFFC) was less (P < 0.05) for pigs initially provided 0.91 m(2) compared to pigs initially provided 0.65 m(2) and on removal strategies. Also, IOFFC was less (P < 0.05) for pigs on the 2:2:2 compared to the 2:4 and 6 removal strategies. In conclusion, increasing the floor space allowance or the time points at which pigs are removed from the pen improved the growth of pigs remaining in the pen; however, IOFFC may be reduced because fewer pigs are marketed from each pen (pigs stocked at 0.91 m(2) throughout the study) or from reducing total weight produced (2:2:2 removal strategy).
dc.relation.uri https://doi.org/10.2527/jas.2016-0407
dc.rights Copyright © 2016. American Society of Animal Science. This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.uri https://www.animalsciencepublications.org/files/publications/jas/jas-instructions-to-authors-050917.pdf
dc.subject Finishing Pig
dc.subject Floor Space
dc.subject Late Finishing
dc.subject Removals
dc.subject Swine
dc.subject Agriculture
dc.title Evaluating the removal of pigs from a group and subsequent floor space allowance on the growth performance of heavy-weight finishing pigs
dc.type Article
dc.date.published 2016
dc.citation.doi 10.2527/jas.2016-0407
dc.citation.epage 4400
dc.citation.issn 0021-8812
dc.citation.issue 10
dc.citation.jtitle Journal of Animal Science
dc.citation.spage 4388
dc.citation.volume 94
dc.description.embargo 2017-10
dc.contributor.authoreid mtokach
dc.contributor.authoreid jderouch
dc.contributor.authoreid jwoodworth
dc.contributor.authoreid goodband
dc.contributor.authoreid dritz
dc.contributor.kstate Tokach, Michael D.
dc.contributor.kstate DeRouchey, Joel M.
dc.contributor.kstate Woodworth, Jason C.
dc.contributor.kstate Goodband, Robert D.
dc.contributor.kstate Dritz, Steven S.


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