Genetic analysis of growth traits in Polled Nellore cattle raised on pasture in tropical region using Bayesian approaches.
作者: Fernando Brito LopesCláudio Ulhôa MagnaboscoFernanda PauliniMarcelo Corrêa da SilvaEliane Sayuri MiyagiRaysildo Barbosa Lôbo
刊名: PLoS ONE, 2017, Vol.8 (9)
来源数据库: Directory of Open Access Journals
DOI: 10.1371/journal.pone.0075423
原始语种摘要: Components of (co)variance and genetic parameters were estimated for adjusted weights at ages 120 (W120), 240 (W240), 365 (W365) and 450 (W450) days of Polled Nellore cattle raised on pasture and born between 1987 and 2010. Analyses were performed using an animal model, considering fixed effects: herd-year-season of birth and calf sex as contemporary groups and the age of cow as a covariate. Gibbs Samplers were used to estimate (co)variance components, genetic parameters and additive genetic effects, which accounted for great proportion of total variation in these traits. High direct heritability estimates for the growth traits were revealed and presented mean 0.43, 0.61, 0.72 and 0.67 for W120, W240, W365 and W450, respectively. Maternal heritabilities were 0.07 and 0.08 for W120 and...
全文获取路径: DOAJ  (合作)
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影响因子:3.73 (2012)

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关键词翻译
关键词翻译
  • raised 提升
  • estimate 估计
  • genetic 遗传的
  • growth 生长
  • variance 离散
  • pasture 牧场
  • weights 法码
  • indicator 指示剂
  • heritability 遗传力
  • tropical 热带的