海南省不同地区几种热带牧草微量元素含量

Contents of Trace Elements in Several Troplcal Forages in Different Areas of Hainan Province

从海南省5个地区分别采集5种热带人工牧草样品,以原子吸收分光光度法测定其中铁、铜、锌和锰的含量。给出了热带地区牛、羊舍饲常用的5种人工牧草中上述元素的平均含量。从测定结果还可看出,不同地区的同种牧草,有些微量元素的平均值相近,但多数微量元素含量存在一定、甚至较大的差异;同一地区同一种牧草样品间也有差异。

Five tropical forage samples were collected from five different areas in Hainan province, in which the contents of Fe, Cu, Zn and Mn were determined by flo-rescence spectrophotometry. Mean values of the trace elements mentioned above in five forages which are commonly taken by cattle and goats are given out. Results show that the mean values of some trace elements are quite similar, however, certain and even greater differences exist in most trace elements of the same forage collected from different areas and at the same time, differences also exist among samples of the same forage collected from the same area.