高寒草甸草场牧草营养成分测定与分析  

Determination and Analysis of Forage Nutrients in Alpine Meadow

作　　者：扎西卓玛[1] 王宏博[2] 李桂香[1] 吴琴 张玉花[1] 王成林[1] 李天科[2] 赵娟花 

机构地区：[1]青海省海西州动物疫病预防控制中心,青海德令哈817099 [2]中国农业科学院兰州畜牧与兽药研究所/甘肃省牦牛繁育工程重点实验室,兰州730050 [3]青海省海西州格尔木市畜牧兽医工作站,青海格尔木816099

出　　处：《湖北农业科学》2018年第1期109-111,共3页Hubei Agricultural Sciences

基　　金：中国农业科学院牦牛资源与育种创新团队项目(CAAS-ASTIP-2014-LIHPS-01);现代农业(肉牛牦牛)产业技术体系项目(CARS-37);中央级公益性科研院所基本科研业务费专项

摘　　要：对青海省海西州天峻县海拔在3 741~4 045 m的高寒草甸草场枯草期、青草期牧草进行主要营养成分测定及分析。结果表明,枯草期干物质(DM)含量94.60%,粗蛋白(CP)含量4.35%,粗脂肪(EE)含量0.97%,粗纤维(CF)含量28.04%,粗灰分(Ash)含量7.33%,Ca含量0.8%,P含量0.03%,无氮浸出物(NFE)含量53.91%;青草期干物质(DM)含量87.67%,粗蛋白(CP)含量5.80%,粗脂肪(EE)含量6.32%,粗纤维(CF)含量22.94%,粗灰分(Ash)含量5.90%,无氮浸出物(NFE)含量52.61%,Ca含量1.20%,P含量0.50%。枯草期粗蛋白含量比青草期粗蛋白含量损失1.45个百分点,枯牧草中粗脂肪比鲜牧草损失5.35个百分点;枯牧草中粗纤维(28.04%)显著高于鲜牧草粗纤维(22.94%)(P<0.05),枯牧草中Ca、P含量也低于鲜牧草中Ca、P含量,干物质、无氮浸出物、粗灰分的含量鲜牧草低于枯牧草。The main nutritional components of forage grass in alpine meadow of Tianjun Countyin Qinghai Province from 3 741 to 4 045 m were measured and analyzed.The results indicated that dry matter（DM） content was 94.60%,crude protein（CP）content was about 4.35%,crude fat（EE） content was about 0.97%,crude fiber（CF） content 28.04%,crude ash（Ash）contentwas about 7.33%,and Ca 0.8%,P〈0.03%,the content of nitrogen free extract（NFE） was 53.91%; the content of dry matter（DM） of fresh grass was 87.67%,crude protein（CF） content was about 5.80%,crude fat（EE） content was about 6.32%,crude fiber（CF） content was about 22.94%,crude ash（Ash） content was about 5.90%,nitrogen free extract（NFE） content was52.61%,Ca 1.20%,P〈0.50%,the crude protein content of dry forage than fresh forage crude protein content of loss 1.45 percentage points,dry forage crude fat than fresh forage and losses 5.35 percentage points; dry forage crude fiber（28.04%）was significantly higher than that of fresh forage crude fiber（22.94%）（P〈0.05）,Ca,P in the dry grass was also lower than that of Ca and P in fresh grass in animal husbandry dry matter,ash,nitrogen free extract,and the content of fresh forage is lower than that of dry grass.

关 键 词：高寒草甸草场 鲜牧草 枯牧草 营养成分 测定 

分 类 号：S54[农业科学—作物学]