高寒草地天然牧草Ca、P含量及其分布规律  

The content and distribution of Ca,P of natural pasture in alpine grassland

作　　者：韩小东 郝力壮[1,2,3] 刘书杰 

机构地区：[1]省部共建三江源生态与高原农牧业国家重点实验室青海省高原放牧家畜动物营养与饲料科学重点实验室,青海西宁810016 [2]青海高原牦牛研究中心,青海西宁810016 [3]青海大学畜牧兽医科学院,青海西宁810016

出　　处：《饲料工业》2017年第21期62-64,共3页Feed Industry

基　　金：国家国际科技合作专项项目[2015DFG31870];国家自然科学基金[31660673];国家重点研发计划[2016YFD0500504-4];国家重点基础研究发展计划(973项目)[2012CB722906];青海省重大科技平台建设项目[2013-Z-Y03]

摘　　要：高寒草地天然牧草是高原放牧家畜主要日粮来源,全年天然牧草营养的不均衡和家畜营养需要的恒定,严重制约了高寒草地畜牧业的发展。文章通过综述青海、西藏、甘肃和新疆有关高寒草地牧草营养价值的研究文献,整理综合高寒牧草Ca、P的营养成分数据,以不同牧草不同生长时期为划分单位,探究不同地域、不同生长期高寒天然牧草Ca、P含量极其分布规律,为高寒草地放牧家畜精准补饲饲养提供基础参数,通过适度补饲解决高寒草地营养供给不均衡问题。Alpine grassland natural grass is the main source of diets for highland grazing livestock, the annual nutrient imbalance of natural forage and the constant need of livestock nutrition, seriously re- stricting the development of alpine grassland animal husbandry.In this paper, the nutrient data of Ca and P in alpine grassland were collected by reviewing hai, Tibet, Gansu and Xinjiang. The different growth the nutritional value of alpine grassland in Qing- periods of different pasture were used to explore the different regions. The content of Ca and P in natural pasture is extremely distributed, which pro- vides the basic parameters for the accurate feeding and rearing of alpine grassland grazing. The prob- lem of nutrient supply of alpine grassland is solved by moderate feeding.

关 键 词：高寒草地 冷季 暖季 CA P 

分 类 号：S816.15[农业科学—饲料科学]