饲料研究2023，Vol.46Issue(23)：7-12,6.DOI:10.13557/j.cnki.issn1002-2813.2023.23.002
贮藏方式对紫色达利菊营养成分及瘤胃降解特性的影响
Effect of conservation method on nutrient contents and ruminal degradability of purple prairie clover(Dalea purpurea Vent.)
摘要
Abstract
The study was to evaluate the effect of different storage methods on the ruminal degradation of nutrients and nutrients in purple prairie clover.Three Angus heifers fitted with permanent ruminal fistulas were used to determine the ruminal nutrient degradation characteristics of purple prairie clover stored in the forms of fresh grass(group F),hay(group H),silage(group S)and silage + polyethylene glycol(group SP)by ruminal nylon bag method.The results showed that silage significantly reduced the content of condensed tannins in purple prairie clover(P＜0.05).The rumen degradation rate of crude protein(CP)ranked as group SP＞group S＞group F＞group H at 2～24 h.The effective rumen degradation rate of dry matter(DM)was ranked as group SP＞group F＞group S＞group H.The effective rumen degradation rate of CP was ranked as group SP＞group S＞group F＞group H.The study indicates that purple prairie clover can better preserve the biological activity of condensed tannin(CT)when stored in the form of hay,reduce the ruminal degradation rate of CP,and have the potential to improve the utilization rate of protein in ruminant animals.关键词
紫色达利菊/缩合单宁/贮藏方法/营养成分/瘤胃降解率Key words
purple prairie clover/condensed tannins/conservation method/nutrient content/ruminal degradability分类
农业科技引用本文复制引用
黄倩倩,王玉玺..贮藏方式对紫色达利菊营养成分及瘤胃降解特性的影响[J].饲料研究,2023,46(23):7-12,6.基金项目
国家自然科学基金项目(项目编号:31902191) （项目编号:31902191）
