氧化镁预防反刍动物亚急性瘤胃酸中毒的机制及其应用研究进展  

The Mechanism and Application of Magnesium Oxide to Prevent Sub-acute Ruminal Acidosis:A Review

作　　者：熊凤良 吕良康 李文娟 吴启超 张帆 刘颖怡 王炜康 裴世腾 何姗姗 杨红建 XIONG Fengliang;LYU Liangkang;LI Wenjuan;WU Qichao;ZHANG Fan;LIU Yingyi;WANG Weikang;PEI Shiteng;HE Shanshan;YANG Hongjian(State Key Laboratory of Animal Nutrition and Feeding,College of Animal Science and Technology,China Agricultural University,Beijing 100193,China)

机构地区：[1]中国农业大学动物科学技术学院,畜禽营养与饲养全国重点实验室,北京100193

出　　处：《中国畜牧杂志》2024年第6期101-106,共6页Chinese Journal of Animal Science

摘　　要：适当提高日粮精粗比是提高反刍动物生产性能的重要手段,但其引起的亚急性瘤胃酸中毒问题也相当严重。氧化镁单独添加或与碳酸氢钠配合使用可有效预防和缓解高精料日粮引起的亚急性瘤胃酸中毒。除了良好的瘤胃缓冲能力,氧化镁还能够维持瘤胃内环境和瘤胃菌群结构稳定,并可在一定程度上提高动物生产性能。因此,本文综述了氧化镁瘤胃缓冲作用机制、影响其瘤胃缓冲效果的因素及其在反刍动物生产中的应用研究进展,旨在为氧化镁在反刍动物生产中的科学应用提供一定理论依据。Properly increasing the concentrate-to-roughage ratio is a crucial dietary strategy for enhancing the production performance in ruminants.However,this approach also causes a risk of sub-acute ruminal acidosis.Previous studies have shown that Magnesium oxide solely or in combination with sodium bicarbonate could effectively alleviate sub-acute ruminal acidosis caused by high-concentrate diets.Magnesium oxide also contributes to the stabilization of the rumen environment and microbial flora while providing a potent rumen buffering capacity.Therefore,it could promote ruminant production performance to some extent.Hence,the present paper reviewed the rumen buffering mechanism of magnesium oxide,the factors influencing its buffering efficacy,and the progress of its application in ruminant production.This review aimed to provide a comprehensive theoretical reference for the rational utilization of magnesium oxide in ruminant production.

关 键 词：氧化镁 瘤胃 亚急性瘤胃酸中毒 反刍动物 

分 类 号：S816.7[农业科学—饲料科学]