Review

Mechanism for Effects of Urea Transporter B on Urea Nitrogen Recycling in Rumen of Cows

  • FU Tong ,
  • LIAN Hongxia ,
  • GAO Tengyun ,
  • ZHAO Weidong ,
  • SUN Yu ,
  • LI Gaiying
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  • College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China

Received date: 2013-06-15

  Online published: 2013-11-19

Abstract

Urea transporter B (UT-B) is a membrane channel protein which rapidly transports urea with high selectivity, and modulates urea movement across biological membrane. UT-B plays a key role in the urea nitrogen recycling into the rumen. And its gene expression is affected by the dietary nitrogen level, rumen fermentation parameters and rumen environment indexes. But the mechanism which UT-B modulates urea nitrogen recycling is unclear. Here, we reviewed nitrogen recycling in rumen of cows and the role of UT-B in it, and discussed the influencing factors of UT-B gene expression, such as dietary nitrogen level, rumen fermentation parameters and rumen environment indexes, etc.

Cite this article

FU Tong , LIAN Hongxia , GAO Tengyun , ZHAO Weidong , SUN Yu , LI Gaiying . Mechanism for Effects of Urea Transporter B on Urea Nitrogen Recycling in Rumen of Cows[J]. Chinese Journal of Animal Nutrition, 2013 , 25(12) : 2798 -2803 . DOI: 10.3969/j.issn.1006-267x.2013.12.003

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