Heritabilities and genetic correlations of body condition score and muscularity with productive traits and their trend functions in Italian Simmental cattle
作者: Erika FrigoAntonia B. SamorèDaniele VicarioAlessandro BagnatoOttavia Pedron
刊名: Italian Journal of Animal Science, 2013, Vol.12 (2), pp.e40-e40
来源数据库: Directory of Open Access Journals
DOI: 10.4081/ijas.2013.e40
关键词: Body conditionMuscularitySimmental cattleGenetic correlationManagement
原始语种摘要: With the aim to study the genetics of energy and muscle balance in the Italian Simmental breed, the objectives of this study were: i) the estimation of the genetic parameters for body condition score (BCS) and muscularity (MU) score; ii) the estimation of genetic correlations of BCS and MU with productive traits; iii) the estimation of the expected pattern of BCS and MU over lactation. A total of 47,839 records of first-parity lactating cows, collected from 1999 to 2007 in 2794 herds, were used. Two-trait animal models were analyzed using restricted maximum likelihood (REML) procedures to estimate (co)variance components. The expected patterns of BCS and MU along the lactation of first parity cows were estimated from the solutions of DIM fixed effect obtained from an univariate mixed...
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关键词翻译
关键词翻译
  • productive 生产的
  • genetic 遗传的
  • score 得分
  • estimate 估计
  • expected 预期
  • muscularity 肌肉发达
  • their 他们的
  • BCS Basic Catalog Structure
  • correlation 对比
  • parity 宇称