Cows suffering from ketone disease and fatty liver disease would go with hypoglycemia, declining milk yield and changes of blood chemical indexes and fat contents in liver at different degrees.
酮病、脂肪肝奶牛伴发低血糖，泌乳量下降，血液多种生化指标、肝脂含量发生不同程度的改变。
The results indicate that the yield of milk was improved greatly, and the contents of iron, zinc, and selenium were also increased differently by the addition of the trace elements in the feedstuff.
结果表明：奶牛饲料中添加上述微量元素后，产奶量明显提高。且鲜奶中所含的铁、锌、硒都有不同程度的增加。
The results indicate that the yield of milk was improved greatly, and the contents of iron, zinc, and selenium were also increased differently by the addition of the trace elements in the feedstuff.
结果表明：奶牛饲料中添加上述微量元素后，产奶量明显提高。且鲜奶中所含的铁、锌、硒都有不同程度的增加。
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