摘要
随着畜牧业的快速发展和环境保护意识的增强,优化饲粮配方以减少氮排放、提高饲料利用效率成为反刍动物生产领域的研究热点。氮在动物的营养需求中是不可或缺的,与单胃动物相比,反刍动物复杂的消化系统对氮代谢的研究更具有挑战性。同为反刍动物,奶牛场和肉牛饲养场的氮质量平衡数据是不同的,奶牛的氮利用效率要高于肉牛。文章通过综合分析现有文献和研究成果,阐述低蛋白日粮技术对反刍动物的营养代谢、生产性能以及环境等方面的影响及作用。为了提升生产效益,降低氮排放对环境的污染,并对未来的研究方向和应用前景进行了展望,旨在为反刍动物养殖业的可持续发展提供科学依据和实践指导。
With the rapid development of animal husbandry and the increasing awareness of environmen⁃tal protection,optimizing diet formulation to reduce nitrogen emission and improve feed utilization effi⁃ciency has become an important research topic in the field of ruminant production.Nitrogen is essential in the nutritional requirements of animals,and the complex digestive system of ruminants is more chal⁃lenging to study in terms of nitrogen metabolism than in monogastric animals.Nitrogen mass balance data for dairy and beef cattle feedlots are different for the same ruminant species,with dairy cows having a higher nitrogen use efficiency(NUE)than beef cattle.Based on a comprehensive analysis of existing lit⁃erature and research results,the effects of low-egg diet technology on nutrient metabolism,production performance and environment of ruminants were discussed.In order to improve the production efficiency and reduce the pollution of nitrogen emission to the environment,the future research direction and appli⁃cation prospect were prospected,aiming at providing scientific basis and practical guidance for the sus⁃tainable development of ruminant farming industry.
作者
杨潇青
陈宁
聂存喜
马小雪
吕刚
张文举
吴妍妍
YANG Xiaoqing;CHEN Ning;NIE Cunxi;MA Xiaoxue;LYU Gang;ZHANG Wenju;WU Yanyan(College of Animal Science and Technology,Shihezi University,Xinjiang Shihezi 832003,China;Xinjiang Academy of Agricultural Reclamation Sciences,Xinjiang Shihezi 832000,China;Xinjiang Taikun Group Limited Liability Company,Xinjiang Changji,831100,China)
出处
《饲料工业》
CAS
北大核心
2024年第18期20-24,共5页
Feed Industry
基金
兵团重大科技“揭榜挂帅”项目[2023AB078]
新疆维吾尔自治区“两区”科技发展计划项目[2023LQ02002]
新疆昌吉州“两区”科技计划项目[2023LQZ07]
石河子大学高层次人才科研启动项目[RCZK202359]。
关键词
低蛋白日粮技术
反刍动物
氮利用
氮排放
饲料
low protein diets technology
ruminants
nitrogen utilization
nitrogen emission
feed
