Genome-wide association study of swine farrowing traits. Part I: genetic and genomic parameter estimates

Journal of Animal Science
J F SchneiderG A Rohrer

Abstract

The primary objective of this study was to determine genetic and genomic parameters among swine (Sus scrofa) farrowing traits. Genetic parameters were obtained using MTDFREML. Genomic parameters were obtained using GENSEL. Genetic and residual variances obtained from MTDFREML were used as priors for the Bayes C analysis of GENSEL. Farrowing traits included total number born (TNB), number born alive (NBA), number born dead (NBD), number stillborn (NSB), number of mummies (MUM), litter birth weight (LBW), and average piglet birth weight (ABW). Statistically significant heritabilities included TNB (0.09, P = 0.048), NBA (0.09, P = 0.041), LBW (0.20, P = 0.002), and ABW (0.26, P < 0.0001). Statistically significant genetic correlations included TNB-NBA (0.97, P < 0.0001), TNB-LBW (0.74, P < 0.0001), NBA-LBW (0.56, P < 0.0017), NSB-LBW (0.87, P < 0.0395), and LBW-ABW (0.63, P < 0.0002). Genetic parameters are similar to others found in the literature. The proportion of phenotypic variance explained by genomic markers (GP) generated by GENSEL was TNB (0.04), NBA (0.06), NBD (0.00), NSB (0.01), MUM (0.00), LBW (0.11), and ABW (0.31). Limited information is available in the literature about genomic parameters. Only the GP estimate for ...Continue Reading

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Citations

Feb 3, 2016·Genetics, Selection, Evolution : GSE·Lucas L VerardoSimone E F Guimarães
Aug 12, 2014·Journal of Applied Genetics·L L VerardoS E F Guimarães
Sep 15, 2016·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·J Häggman, P Uimari
Mar 25, 2017·Asian-Australasian Journal of Animal Sciences·Bryan Irvine LopezKang Seok Seo
Jun 1, 2014·Journal of Animal Science·N V L SerãoJ C M Dekkers
Apr 7, 2016·Biodemography and Social Biology·Benjamin W DomingueJason D Boardman
Aug 31, 2019·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·Suoyu ZhangYuchun Pan
May 29, 2015·Journal of Animal Science·J F SchneiderJ L Vallet
Oct 12, 2019·Animal Science Journal = Nihon Chikusan Gakkaihō·Bryan I M Lopez, Kangseok Seo
Jul 6, 2014·Journal of Animal Science·J F SchneiderG A Rohrer

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