环青海湖地区土壤、牧草及牦牛血液中矿物质元素动态变化研究  

Dynamic Changes of Mineral Elements in Yak Blood,Pasture,and Soil at Different Seasons Around Qinghai Lake

作　　者：罗晓林[1] 徐惊涛[2] 魏雅萍[2] 童子保[2] 马玉红[2] 陈生梅[2] 马志杰[2] 张艳[2] 

机构地区：[1]四川省草原科学研究院,成都611731 [2]青海省畜牧兽医科学院,西宁810016

出　　处：《四川动物》2011年第1期97-102,共6页Sichuan Journal of Zoology

摘　　要：2005年3月(冬春季草场)和2005年7月(夏季草场),分别对环青海湖地区放牧牦牛的全血、牧草和土壤中的Zn、Ca、Cu、Fe、K、Na、S、P、Cl、F、I、Se12种矿物元素和Ca、Cu、K、Fe、Na、P、Se7种矿物元素的营养状况进行了测定。结果显示,除夏季牦牛全血Se和S有显著增加外,其它矿物质含量均显著降低,提示夏季草场由于牦牛生长发育迅速其矿物质元素的缺乏更为严重,在生产中更应进行有关矿物质元素的补饲,进一步提高其生产性能。In this study we determined the zinc, calcium, copper, iron, potassium, sodium, sulphur, phosphorus, chlo- rine, fluorine, iodine, and selenium content from soil, pasture and yak blood of different aged yak in the winter and spring grasslands around the Qinghai Lake area. We also detected the levels of calcium, copper, iron, potassium, sodium, phos- phorus, and selenium from soil, pasture and yak blood of different aged yaks in the summer grasslands in the same area. The results showed sulphur and selenium levels increased from the spring to summer, but the others decreased obviously. This suggests a deficit of mineral elements in the summer grasslands which has implications for the healthy growth and development of yak. Supplementary feed for mineral elements in the summer time should be given to increase the productivity performance further.

关 键 词：牦牛 冬春季草场 夏季草场 矿物质 

分 类 号：S823.85[农业科学—畜牧学]