过瘤胃胆碱对围产期奶牛营养作用的研究进展  

Advance Research on Trophism of Rumen-Protected Choline for Dairy Cows in Perinatal Stage

作　　者：刘翔[1] 曲永利[1] 

机构地区：[1]黑龙江八一农垦大学动物科技学院,黑龙江大庆163319

出　　处：《中国牛业科学》2012年第6期53-57,共5页China Cattle Science

基　　金：国家科技部支撑项目;东北农区奶牛规模化健康养殖生产技术集成和产业化示范(2012BAD12B05);黑龙江农垦总局项目;黑龙江垦区高产奶牛科学饲养与后备牛培育技术研究(HNK11A-08-01-02)

摘　　要：本文通过研究围产期奶牛的代谢特点,阐述了胆碱的生物学功能及其在瘤胃中的代谢机理,同时论述了过瘤胃胆碱对围产期奶牛的营养作用。旨在为应用过瘤胃胆碱缓解奶牛能量负平衡,减少围产期奶牛营养代谢病发病率,提高奶牛生产性能,延长奶牛利用年限奠定理论参考依据。This article elaborated the biological function of choline, described the choline metabolic characteristics in rumen, discussed the nutritional role of rumen-protected choline via studying metabolic characteristics of dairy cows in the rumen protected choline to pe all rinatal stage. This paper aimed to establish theoretical basis on applying eviate the energy negative balance of cows, reduce tperinatal period metabolic disease,improve the performance,prolong the utilization of dairy cows.

关 键 词：围产期奶牛 过瘤胃胆碱 能量负平衡 生产性能 血液生化指标 

分 类 号：S823.5[农业科学—畜牧学]