Sow and Litter Performance for Individual Crate and Group Hoop Barn Gestation Housing Systems: Progress Report III Lammers, Pete Harmon, Jay Honeyman, Mark Mabry, John Harmon, Jay 2018-08-25T18:29:27.000 2020-06-29T23:30:08Z 2020-06-29T23:30:08Z Sun Jan 01 00:00:00 UTC 2006 2006-01-01
dc.description.abstract <p>The effects of gestation system on sow and litter performance over a 2.5 year period were evaluated at the Iowa State University Lauren Christian Swine Research and Demonstration Farm near Atlantic, IA. Gestation housing system treatments were 1) individual gestation crates in a mechanically ventilated, partially slatted floor manure flush confinement building (C); and 2) group pens with individual feed stalls in deep-bedded, naturally ventilated hoop barns (H).</p> <p>Sows were artificially inseminated in a mechanically ventilated, partially slatted floor confinement breeding barn. Sows were moved as a group to their assigned gestation housing treatment by the ninth day post-weaning. Sows were randomly assigned to gestation housing treatment when the project commenced. All first parity gilts were gestated in individual crates and randomly assigned to a gestation group after breeding for the second parity. Farrowing occurred throughout the year on a bi-weekly schedule. All sows received 2.04 kg per day of a cornsoybean meal diet. During the last trimester of gestation, feed allowance was increased to 2.72 kg. During the winter H sows were fed 25% more feed and C sows were fed 5% more feed.</p> <p>Reproductive performance was summarized for 957 litters and analyzed using general linear models. Number born alive per litter was different for the two housing treatments (P0.1). H sows also weaned 0.4 pigs more per litter (P0.1). Failure to conceive was the leading reason for culling in both treatments. There was a trend for sows gestated in C to be culled for feet and leg unsoundness. H sows tended to be culled for poor body condition. Results indicate that gestating sows can be housed in deep-bedded hoop barns equipped with individual feeding stalls and achieve results comparable or superior to gestating sows housed in individual crated gestation systems.</p>
dc.identifier archive/
dc.identifier.articleid 1208
dc.identifier.contextkey 3311651
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ans_air/vol652/iss1/77
dc.language.iso en
dc.relation.ispartofseries Animal Science Research Reports
dc.relation.ispartofseries ASL R2171
dc.source.bitstream archive/|||Sat Jan 15 01:52:10 UTC 2022
dc.subject.disciplines Agriculture
dc.subject.disciplines Animal Sciences
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords ASL R2171
dc.title Sow and Litter Performance for Individual Crate and Group Hoop Barn Gestation Housing Systems: Progress Report III
dc.type article
dc.type.genre swine
dspace.entity.type Publication
relation.isAuthorOfPublication 863ffed7-5274-46d6-95cc-47c7d0d5b6ab
relation.isJournalIssueOfPublication 19a7d362-cc4b-4a86-ae7b-d8638c6352d4
relation.isSeriesOfPublication 7f3839b7-b833-4418-a6fa-adda2b23950a
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