黑龙江省西部草地有效微量元素的分布与奶牛健康及调控

The Distribution and Control of Available Trace Elements with Cow Health and Adjustment of the Grassland in the West Heilongjiang Province

从食物链的源头上对奶牛业发达的黑龙江省西部草地土壤有效微量元素的分布与奶牛健康进行了研究 ,发现 Se、Cu、Zn、Mn呈缺乏状态。采取对牧草进行微量元素溶液喷施 ,显著提高了牧草的几种微量元素的含量 ,有效地预防了奶牛这些微量元素缺乏症的发生。

From the source of food-chain ,the distribution and the cow health with the contents of available trace elements of the grassland soil were prospected in the west Heilongjiang province. It is found that the area was lack of selenium, copper, zinc, manganese. If the trace element solution were applied, the trace elements in forage grass were increased significantly. The deficiencies of trace elements were controlled in cows.