红豆草—羔羊放牧系统的草地生产能力研究  

STUDY ON PRODUCTIVITY OF LAMB GRAZING SYSTEM IN SAINFION FIELDS

作　　者：梁树有[1] 符义坤[1] 贾笃敬[1] 李光棣[1] 温尚文 徐长林[1] 

机构地区：[1]甘肃农业大学,兰州730070

出　　处：《草业科学》1990年第6期44-50,共7页Pratacultural Science

摘　　要：作者通过用边区莱斯特×甘肃高山细毛羊杂种一代(BG)与甘肃高山细毛羊(GF)进行轮牧结合三个水平补饲试验,对红豆草——羔羊放牧系统的生产能力进行了比较分析,表明在农区或半农半牧区实行人工种草、划区轮牧和季节畜牧业,可使草地生产能力从植物生产层到动物生产层比传统生产方式最终放大到15.8倍左右。An experiment of lamb fattening was carried out with BG(Border Leicester×Gansu Alpine Finewool)and GF(Gansu Alpine Finewool)lambs grazing on sainfion stubble fields and added with three levels of concentrates at the college farm of Gansu Agric,univ.in 1989.The productivity.production efficiency,energy flow,and magnifying of prcduction efficiency for the lamb grazing system were measured and analysed.Results show that productivity and feed conversion rate for BG were individually 7.9％and 4.0％greater than GF.An estra of 14％—25％ liveweight was gained by adding with concentrates during the experiment.Production efficiency was finally amplyfied to 15.8 times over the extensive management in local area.

关 键 词：红豆草 羔羊 放牧系统 草地生产力 

分 类 号：S826.43[农业科学—畜牧学]