瘤胃可降解淀粉:决定反刍动物消化道健康与养分利用的关键日粮因子

Rumen degradable starch regulate the gut health and nutrient utilization in ruminants

淀粉是反刍动物日粮的重要能量来源,是瘤胃发酵的启动因子和动物高产的基本前提。基于本团队近年的研究结果,本文总结了日粮瘤胃可降解淀粉对瘤胃和后肠道代谢与健康以及生产性能等方面的影响,表明日粮瘤胃可降解淀粉是决定反刍动物消化道健康与养分利用的关键日粮因子。生产实践中,除考虑日粮淀粉含量外,还需综合考虑胃肠道不同位点(瘤胃和小肠)淀粉的降解率与能量利用效率。

Starch is the main important energetic component of the diet in ruminants,and can affect rumen fermentation and production performance.Based on our recent research progress,this paper summarized the effect of rumen degradable starch in ruminants on rumen and hindgut health,and production performance and so on.Those studies have showed that rumen degradable starch play vital roles on gut health and nutrient utilization.Starch degradation and energy efficiency in rumen and intestine could be considered in the preparation of total mixed ration diet in ruminants.