川西北高寒牧区冬春补饲饲草营养价值的综合评价  

Comprehensive evaluation of nutrient value for the winter and spring supplement feeding forages in the alpine pastoral area of Northwestern Sichuan

作　　者：刘刚[1] 赵桂琴[2] 白史且[1] 李鸿泉[1] 李达旭[1] 

机构地区：[1]四川省草原科学研究院,四川成都611731 [2]甘肃农业大学草业学院,甘肃兰州730070

出　　处：《草业科学》2009年第7期94-98,共5页Pratacultural Science

基　　金：中加农业发展项目(1286);国家农业行业科研项目"人工草地优质牧草生产技术研究与示范"(ny-hyzx07-022);"现代农业产业技术体系建设"专项资金资助

摘　　要：通过基于熵权法进行赋权,运用灰色系统理论中的灰色关联度法对川西北高寒牧区6种冬春补饲饲草料的营养价值进行综合评价。结果表明,"Y61-005"燕麦Avena sative青贮草料的营养价值最高,其粗蛋白(CP)、粗脂肪(EE)、粗灰分(ASH)、钙(Ca)含量最高,粗纤维(CF)、中性洗涤纤维(NDF)含量最低;天然草地枯草与"川草2号"老芒麦Elymus sibiricus收种后的干草营养价值较低。总体来看,燕麦草的营养价值比老芒麦草的营养价值要高;青贮草料比青干草的营养价值高。为了提高高寒草地畜牧业的生产力水平,应大力推广燕麦栽培及青贮技术。Through the entropy weight based entropy way, the gray related degree method was used to evaluate nutrient value of 6 supplement feeding forages synthetically. Results showed that the silage forage of Arena sativa variety ＇Y61-005 ＇ presented the highest nutrient value, which had the highest content of crude protein （CP）, crude fat （EE）, crude ash（ASH）, calcium （Ca）, and the least content of crude fiber（CF） and neutral detergent fiber （NDF）. The withering grass of natural grassland and the straw of Elyrnus sibiricuson variety ＇ Chuancao NO. 2 ＇ after seed harvested had lower nutrient value. In generally, the nutrient value of A. sativa forage was better than the E. Sibiricuson, and the silage forage was better than the hay. The A. sativa planting and ensiling technologies should be popularized in order to improve stockbreeding productivity in alpine pasture.

关 键 词：青贮草料 青干草 燕麦 老芒麦 综合评价 

分 类 号：S543.9[农业科学—作物学]