02169naa a2200397 a 450000100080000000500110000800800410001902400380006010000220009824501510012026000090027152009970028065000250127765000120130265000100131465000190132465000240134365000240136765000170139165000260140865000200143465000100145465000130146465000210147765000250149865000110152365300260153465300230156065300230158370000210160670000190162770000170164670000280166370000180169177300620170920086972015-02-13       2014    bl uuuu     u00u1 u    #d7 a10.1080/09064702.2014.9503222DOI1 aNASCIMENTO, G. B.  aGenetic parameter estimates and principal component analysis on performance and carcass traits of a terminal pig sire line.h[electronic resource]  c2014  aThis study aimed to estimate genetic parameters for five traits related to erformance and carcass in a terminal pig sire line using multitrait (MUV) and reduced rank animal models, and to analyze the relationship between the breeding values (EBVs) of the traits using genetic principal component analysis (PCA) applied directly on the mixed model equations (onestep PCA) and on the EBVs obtained using the MUV (two-step PCA). The heritabilities were very similar using both procedures ranged from 0.032 ± 0.014 for feed conversion to 0.102 ± 0.029 for lean meat. Except for some differences in the heritability for feed conversion ratio, the heritability estimates were remarkably similar using One-step PCA or MUV. The genetic correlations obtained using One-Step PCA were more reliable due to their lower standard errors compared to those obtained using MUV. The one-step PCA had better fit than MUV and could reduce the time computing due to the reduction of the additive genetic matrix.  aAnimal fats and oils  aBackfat  abacon  aBreeding value  aCarcass composition  aGenetic correlation  aHeritability  aMultivariate analysis  aSire evaluation  aSwine  aCarcaça  aGenética animal  aMétodo estatístico  aSuíno  aAnálise multivariada  aHerança genética  aQualidade da carne1 aSEVEGNAGO, R. P.1 aCHUD, T. C. S.1 aLEDUR, M. C.1 aFIGUEIREDO, E. A. P. de1 aMUNARI, D. P.  tActa Agriculturae Scandinavica, Section A , 4 sept. 2014.