Sample preparation affects non structural carbohydrates in alfalfa

摘要：

Non structural carbohydrate (NSC) concentration in forages provides an estimate of the energy readily available to rumen microbes.Proper sample preparation is crucial for precise estimation of NSC.Enzymatic activity that occurs after cutting may affect the final NSC concentration.Liquid N and freeze‐drying are useful methods to quickly stop the enzymatic activity but they are difficult to use with large samples under field conditions.Other methods used for larger samples exist but their effectiveness remains to be determined.Our objective was to assess the effect of sample preparation treatments on the NSC concentration in alfalfa.We hypothesized that high temperature or freezing, immediately after harvest, will limit enzymatic activity and preserve NSC in alfalfa samples.

关键词： Medicago sativa L . sugars pinitol starch drying methods

作者: G.F.Tremblay A.Bertrand Y.Castonguay G.Bélanger S.Pelletier R.Michaud

作者单位: Agriculture and Agri-Food Canada,2560 Hochelaga Blvd.,Québec,QC Canada GIV 2J3

会议类型: 国际会议

会议名称: 2008世界草地与草原大会

会议地点: 呼和浩特

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）