单宁对反刍动物氮代谢及瘤胃微生物影响的研究进展

Research Progress on Effects of Tannin on Nitrogen Metabolism and Rumen Microorganism of Ruminants

在反刍动物饲粮中添加一定量的单宁可有效抑制瘤胃蛋白降解酶,增加过瘤胃蛋白含量,调节反刍动物氮代谢,同时影响溶纤维丁酸弧菌、栖瘤胃普雷沃氏菌等肠道菌群丰度,提高动物对饲粮碳、氮的利用率,增加经济效益。然而,饲粮中单宁的不同来源及添加剂量对反刍动物氮代谢、溶纤维丁酸弧菌和栖瘤胃普雷沃氏菌的影响不同。因此,本文主要论述了不同种类及来源的单宁对反刍动物瘤胃氮代谢、溶纤维丁酸弧菌和栖瘤胃普雷沃氏菌的影响,以期为单宁在反刍动物生产中提高饲料利用率、减轻养殖对环境造成影响等方面的研究和应用提供理论依据。

Adding a certain amount of tannin in ruminant diet can effectively inhibit rumen protein degradation enzyme,increase the content of rumen-bypass protein,and regulate ruminant nitrogen metabolism.At the same time,it will affect the abundance of intestinal flora,such as ruminal Butyrivibrio fibrisolvens and Rumen Dwelling Provotella,improve the utilization rate of dietary carbon and nitrogen,result in the increase of economic benefits in ruminant production.However,the effect of different sources and amount of tannins in diet on nitrogen metabolism,Butyrivibrio fibrisolvens and Rumen Dwelling Provotella in rumen were different.Therefore,this paper mainly overviewed the effects of different kinds and sources of tannins on nitrogen metabolism,Butyrivibrio fibrisolvens and Rumen Dwelling Provotella in the rumen,in order to provide a theoretical basis for the research and application of tannins in ruminant production,such as improving feed utilization and reducing environmental pollution,et al.