Genetic parameters for fertility traits in Nellore bulls
作者: Ivan Carvalho FilhoDaniele Botelho Diniz MarquesCarolina Filardi CamposJosé Domingos GuimarãesSimone Eliza Facioni GuimarãesPaulo Sávio LopesFabyano Fonseca e SilvaRenata Veroneze
作者单位: 1Departamento de Zootecnia Universidade Federal de Viçosa Viçosa Brazil
2 Departamento de Medicina Veterinária Universidade Federal de Viçosa Viçosa Brazil
刊名: Reproduction in Domestic Animals, 2020, Vol.55 (1), pp.38-43
来源数据库: Wiley Journal
DOI: 10.1111/rda.13578
关键词: Genetic correlationHeritabilitySemen qualityTesticular biometryZebu
原始语种摘要: Abstract(#br)Nellore is the main cattle breed used in Brazil, being the largest commercial herd in the world. Beyond the importance of male reproductive efficiency for farm profit, the use of reproductive techniques, mainly artificial insemination, turns the evaluation of male reproductive traits even more important. Estimation of genetic parameters increases the knowledge on traits variances and allows envisaging the possibility of the inclusion of new traits as selection criterion. Genetic parameters for fifteen traits that can be classified as testicular biometry or physical and morphological semen traits were estimated for a Nellore bull population ranging from 18 to 36 months. Single‐trait and bi‐trait animal models were used for (co)variance components estimation. The contemporary...
全文获取路径: Wiley  (合作)

  • 十五 指示
  • fertility 肥度
  • heritability 遗传力
  • biometry 生物统计学
  • trait 性状
  • circumference 圆周
  • parameters 参数
  • indicating 指示
  • fifteen 指示
  • genetic 遗传的
  • favourable 优惠