动物营养学报2016，Vol.28Issue(10)：3042-3050,9.DOI:10.3969/j.issn.1006-267x.2016.10.004
影响反刍动物氮素利用效率和排放的营养实践
Nutrition Practices for Affecting Nitrogen Utilization Efficiency and Emission of Ruminants
摘要
Abstract
The parameters related to the excretion of total ammonia nitrogen from dairy cows and manure appli-cations are the most sensitive technical ones influencing agricultural ammonia emission. How to improve the ni-trogen conversion efficiency to lactation of dairy cows through reasonable precision feeding and decrease the ni-trogen emission of dairy production system are significant for the dairy production to alleviate the economic and environmental pressures. This review summarized the nutrition practices for reducing nitrogen emission of rumi-nants from the aspect of dietary nitrogen levels, carbohydrate types, amino acid supplementation, feed addi-tives, dietary concentrate to forage ratio, new feed raw materials and so on. Simultaneously, the effects of Cornell net carbohydrate and protein system ( CNCPS) model and its improvement on dairy farm nitrogen esti-mation as well as the effects of urea transporter on nitrogen metabolism of ruminants were also reviewed.关键词
反刍动物/氮素利用/氮排放/营养实践Key words
ruminants/nitrogen utilization/nitrogen emission/nutrition practices分类
农业科技引用本文复制引用
王笑笑,李若玺,梅洋,高腾云..影响反刍动物氮素利用效率和排放的营养实践[J].动物营养学报,2016,28(10):3042-3050,9.基金项目
现代奶牛产业技术体系建设专项资金( CARS-37) （ CARS-37）
