Nascimento, Barbara MazettiSomavilla, Adriana Luiza [UNESP]Dias, Laila TalaricoTeixeira, Rodrigo de Almeida2015-03-182015-03-182014-10-01Tropical Animal Health And Production. Dordrecht: Springer, v. 46, n. 7, p. 1265-1269, 2014.0049-4747http://hdl.handle.net/11449/116345This study aimed to investigate the following environmental effects in Suffolk lambing: contemporary groups, type of birth, and age of animal and age of dam at lambing on conformation (C), precocity (P), musculature (M), and body weight at postweaning (W), and the heritability coefficients and genetic correlations among these traits. Contemporary groups, type of birth, and age of animal and age of dam at lambing were significant for W. For C, all the effects studied were significant, except linear and quadratic effects of age of the animal. For P, all effects studied were significant, except the quadratic effect of age of the animal. For M, the effects of contemporary group, type of birth, and the linear effect of the age of the animal were significant. Heritability estimates were 0.07 +/- 0.03, 0.14 +/- 0.03, 0.09 +/- 0.03, and 0.11 +/- 0.03 for C, P, M, and W, respectively, indicating a positive low response for direct selection. Estimates of genetic correlations among the visual scores (C, P, and M) and W were moderate to highly favorable and positive, ranging from 0.48 to 0.90. These results indicate that selection for visual scores will increase body weight.1265-1269engConformationGenetic correlationHeritabilityMusculaturePrecocitySheepArtigo10.1007/s11250-014-0638-xWOS:000342497900024Acesso restrito