Quantification of ruminal Clostridium proteoclasticum by real-time PCR using a molecular beacon approach

D. Paillard, N. McKain, M. T. Rincon, K. J. Shingfield, D. I. Givens, R. J. Wallace

Research output: Contribution to journalArticlepeer-review

61 Citations (SciVal)

Abstract

All members of the ruminal Butyrivibrio group convert linoleic acid (cis-9,cis-12-18:2) via conjugated 18:2 metabolites (mainly cis-9,trans-11-18:2, conjugated linoleic acid) to vaccenic acid (trans-11-18:1), but only members of a small branch, which includes Clostridium proteoclasticum, of this heterogeneous group further reduce vaccenic acid to stearic acid (18:0, SA). The aims of this study were to develop a real-time polymerase chain reaction (PCR) assay that would detect and quantify these key SA producers and to use this method to detect diet-associated changes in their populations in ruminal digesta of lactating cows.
Original languageEnglish
Pages (from-to)1251-1261
Number of pages11
JournalJournal of Applied Microbiology
Volume103
Issue number4
Early online date17 Apr 2007
DOIs
Publication statusPublished - Oct 2007

Keywords

  • Animal Nutritional Physiological Phenomena
  • Animals
  • Bacterial Typing Techniques
  • Butyrivibrio
  • Cattle
  • Clostridium
  • DNA, Bacterial
  • Diet
  • Female
  • Gastrointestinal Contents
  • Polymerase Chain Reaction
  • RNA, Bacterial
  • RNA, Ribosomal, 16S
  • Rumen
  • Stearic Acids

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