DGAT1 underlies large genetic variation in milk‐fat composition of dairy cows
作者: A. SchenninkW. M. StoopM. H. P. W. ViskerJ. M. L. HeckH. BovenhuisJ. J. Van Der PoelH. J. F. Van ValenbergJ. A. M. Van Arendonk
作者单位: 1Animal Breeding and Genomics Centre, Wageningen University, PO Box 338, 6700 AH Wageningen, the Netherlands
2 Dairy Science and Technology, Wageningen University, PO Box 8129, 6700 EV Wageningen, the Netherlands
刊名: Animal Genetics, 2007, Vol.38 (5), pp.467-473
来源数据库: Wiley Journal
DOI: 10.1111/j.1365-2052.2007.01635.x
关键词: dairy cattleDGAT1fatty acidgenetic parametersmilk composition
原始语种摘要: Summary(#br)Dietary fat may play a role in the aetiology of many chronic diseases. Milk and milk‐derived foods contribute substantially to dietary fat, but have a fat composition that is not optimal for human health. We measured the fat composition of milk samples in 1918 Dutch Holstein Friesian cows in their first lactation and estimated genetic parameters for fatty acids. Substantial genetic variation in milk‐fat composition was found: heritabilities were high for short‐ and medium‐chain fatty acids (C4:0–C16:0) and moderate for long‐chain fatty acids (saturated and unsaturated C18). We genotyped 1762 cows for the DGAT1 K232A polymorphism, which is known to affect milk‐fat percentage, to study the effect of the polymorphism on milk‐fat composition. We found that the DGAT1 K232A...
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关键词翻译
关键词翻译
  • genetic 遗传的
  • composition 构图
  • fatty 脂肪的
  • variation 变异
  • unsaturated 未饱和的
  • polymorphism 多晶形
  • cattle 
  • dairy 制酪场
  • chain 
  • large 大的