高寒草地放牧系统铁的季节变化及盈缺分析  

Seasonal Changes and Suffeciency or Lack Analysis of Fe in Grazing System in Alpine Grassland

作　　者：焦婷[1] 张力[2,3] 侯彦会[1] 曹文侠[1] 

机构地区：[1]甘肃农业大学草业学院中-美草地畜牧业可持续发展研究中心,甘肃兰州730070 [2]江苏畜牧兽医职业技术学院,江苏泰州225300 [3]中国农业科学院兰州畜牧与兽药研究所,甘肃兰州730070

出　　处：《家畜生态学报》2009年第2期88-90,共3页Journal of Domestic Animal Ecology

基　　金：甘肃省自然基金(3ZS041-A25-049);社会公益研究专项资金项目(2001DIB10061)

摘　　要：对青海省三角城种羊场夏(六月中旬)、秋(九月中旬)、冬(十二月中旬)三季的水、土壤、牧草、绵羊被毛、血液、组织器官中铁含量进行了调查与测定分析。结果表明,三季土壤铁均处于丰盈状态;牧草中铁夏季>秋季>冬季,且含量较高;绵羊被毛中三季铁含量也处于正常范围之内,三季血液、肝脏中的铁充足。从整个土壤-牧草-畜体生态体系来看,青海三角城种羊场绵羊处于铁充足的营养状况。The content and seasonal changes of Fe were studied in view of trace element nutrition in water,soil,edible grass （gained by fistula set on esophagas）, wool, plasma, liver of sheep in stud farm of Sanjiaocheng of Qinghai province. The results showed Fe in soil are abundant in three seasons; In edible grass, contents of Fe are all higher than normal leval in summer than in autumn and winter; Fe in hair, plasma, liver of sheep in three seasons are in the same level as in soil and in edible grass. In general, the sheep of the farm is in the ecological environment and nutrional condition of the high--Fe.

关 键 词：铁 土-草-畜生态体系 季节变化 

分 类 号：S811.5[农业科学—畜牧学]