Genetic parameters and predicted selection results for maternal traits related to lactation efficiency in sows

Journal of Animal Science
R BergsmaE F Knol

Abstract

The increased productivity of sows increases the risk of a more pronounced negative energy balance during lactation. One possibility to prevent this is to increase the lactation efficiency (LE) genetically and thereby increase milk output for a given feed intake and mobilization of body tissue. The benefits of selection for LE depend on its heritability and the relationships with other traits of interest. The objectives of this study were to estimate genetic parameters for LE, its underlying traits, and to predict the consequences of current selection strategies in dam lines. Data from 4 farms were available to estimate genetic parameters. Heritabilities were estimated by using a univariate repeatability model, and genetic correlations were estimated bivariately. Selection index theory was used to predict the genetic progress by 3 alternative breeding programs: 1) a breeding program that aimed at balanced progress in the total number of piglets born, piglet mortality, and percent prolonged interval from weaning to estrus; 2) extension of this breeding goal with LE; and 3) a breeding goal that included only one selection criterion, litter weight gain, to demonstrate the effect of indirect selection for milk production. The herit...Continue Reading

References

Mar 19, 2003·The Journal of Heredity·M J M RuttenJ A M van Arendonk
Aug 3, 2005·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·N H NguyenC M Wade

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Citations

Mar 23, 2012·Animal : an International Journal of Animal Bioscience·J W M MerksE F Knol
Jul 6, 2016·Animal : an International Journal of Animal Bioscience·J-L GourdineD Renaudeau
Nov 20, 2013·Animal : an International Journal of Animal Bioscience·H LundgrenL Rydhmer
Jul 25, 2013·Journal of Animal Science·R BergsmaJ A M Van Arendonk
May 16, 2014·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·C L YoderT J Baas
Nov 26, 2019·Animal : an International Journal of Animal Bioscience·M PilesJ P Sánchez
Jun 4, 2017·Mammalian Genome : Official Journal of the International Mammalian Genome Society·Lucas L VerardoSimone E F Guimarães
Nov 27, 2014·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·M BanvilleL Canario
Dec 8, 2015·Journal of Animal Science·A M PutzM T Knauer
May 2, 2020·The Journal of Animal Ecology·Kaitlin R MacdonaldWilliam A Link
Feb 5, 2014·Journal of Animal Science·F F SilvaJ W M Bastiaansen
Feb 1, 2017·Translational Animal Science·F A CabezónB A Craig
Nov 23, 2020·Animal Science Journal = Nihon Chikusan Gakkaihō·Shinichiro Ogawa, Masahiro Satoh
Dec 15, 2020·Journal of Animal Science·Laura VargovicKim L Bunter
Jan 31, 2021·Journal of Animal Science·Laura VargovicKim L Bunter

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