奶牛蛋白水平周期性波动日粮研究进展及对氮减排的启示  

Oscillating Crude Protein Concentration Diet:New Ideas on Nitrogen Emission Reduction Measures in Dairy Production

作　　者：廉红霞[1,2] 王林枫 高腾云[1,2] 付彤 LIAN Hongxia;WANG Linfeng;GAO Tengyun;FU Tong(College of Animal Science and Technology,Henan Agricultural University,Henan Zhengzhou 450046,China;Henan International Joint Laboratory of Nutrition Regulation and Ecological Raising of Domestic Animal,Henan Zhengzhou 450046,China)

机构地区：[1]河南农业大学动物科技学院,河南郑州450046 [2]河南省家畜营养调控与生态养殖国际联合实验室,河南郑州450046

出　　处：《中国畜牧杂志》2022年第9期321-325,共5页Chinese Journal of Animal Science

基　　金：国家自然科学基金项目(31702138);国家现代农业产业技术体系项目(CARS36)。

摘　　要：奶牛对日粮氮利用率低造成了饲料成本增加、环境压力增大,提高奶牛氮利用率是目前实现精准饲喂、解决氮减排的有效方法。本文对日粮蛋白水平周期性波动在奶牛上的应用进行总结,以期为提高奶牛氮利用效率、实现精准饲养,节约奶牛饲料成本和减少饲养过程中的氮素排放提供新的思路。Green and sustainable development has become the development direction of the world dairy industry.Dairy cows have low utilization rate of dietary nitrogen,resulting in many problems including the increase of feed cost,environmental pressure,etc.Improving the nitrogen utilization rate of dairy cows was an effective method to achieve accurate feeding and solve nitrogen emission reduction.The study on the oscillating crude protein concentration diet has become a new way to improve the nitrogen utilization rate of dairy cows.This paper summarizes the application of periodic fluctuation of dietary protein level in dairy cows,in order to provide new ideas for improving nitrogen utilization efficiency of dairy cows,realizing precision feeding,saving feed cost of dairy cows and reducing nitrogen emission in the feeding process.

关 键 词：奶牛 可持续发展 氮减排 日粮蛋白水平 周期性波动 

分 类 号：S852.2[农业科学—基础兽医学]