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Impact of hyper-prolific population generation on the reproduction of sows in multiplication herds

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dc.title Impact of hyper-prolific population generation on the reproduction of sows in multiplication herds en
dc.contributor.author Humpolíček, Petr
dc.contributor.author Tvrdoň, Zdeněk
dc.relation.ispartof Archiv für Tierzucht
dc.identifier.issn 0003-9438 OCLC, Ulrich, Sherpa/RoMEO, JCR
dc.date.issued 2010
utb.relation.volume 53
utb.relation.issue 2
dc.citation.spage 176
dc.citation.epage 183
dc.type article
dc.language.iso en
dc.publisher Forschungsinstitut für die Biologie landwirtschaftlicher Nutztiere (FBN) de
dc.identifier.doi 10.5194/aab-53-176-2010
dc.relation.uri http://arch-anim-breed.fbn-dummerstorf.de/pdf/2010/at10p176.pdf
dc.subject pigs en
dc.subject selection en
dc.subject reproduction en
dc.subject hyper prolific population en
dc.description.abstract The aim of this study was to evaluate the impact of higher selection pressure used in hyper-prolific population on the reproduction of subsequent generations breed in a multiplication herd. Information on 539 liters of 178 ancestors of purebred sows from both hyper-prolific and normal population was included. Higher selection pressure particularly on litter size and teat number was applied in the hyper-prolific population. Differences between total number of piglets born, number of piglets born alive or number of piglets weaned were neither observed on the 1st only nor on the 1st ? 5th litters. Likewise, no effect on the age of sows at the first parturition and number of insemination per pregnant had been found. A significant response on selection was determined only for teat number. The descendents of hyper-prolific population had about 0.37 teats more than sows of normal population. The results suggest that to achieve desired litter size in multiplication herds the selection criteria should be revised and higher focus should be put on the prolificacy, particularly on the litter size than on the traits with high heritability like production traits. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1001708
utb.identifier.rivid RIV/70883521:28610/10:63509213!RIV11-MSM-28610___
utb.identifier.obdid 43864528
utb.identifier.scopus 2-s2.0-77953244299
utb.identifier.scopus 2-s2.0-85063850177
utb.identifier.wok 000277945000006
utb.source j-riv
dc.rights Attribution-NonCommercial-NoDerivs 3.0 Unported
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/
dc.rights.access openAccess
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Humpolíček, Petr
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