【摘要】 用原子吸收光谱法测定了高产奶牛和低产奶牛血液中锌、锰、铜、铁、钴、铅以及镉等微量元素的含量,其中血铜含量二者有显著性差异,其他元素相差不大。本测定可作为黑白花奶牛血液中微量元素含量之正常值。更多还原

【Abstract】 As determined with atomic absorption spectrum method.This paper deals with the content of mineral elements such as Zinc,Copper,Manganese,Ferrum,Calcium,Cobalt,Potassium,Magnesium,Cadmium and Lead in the blood of high and low yielding Holstein-Fresian cows.Specific changes were found in the content of plasme copper between high and low yielding cows.Other mineral elements of changes not were found in the content between high and low yielding cows.更多还原