本发明的有益效果是提供了一种理想的含有机微量元素硒的奶牛用预混合饲料。
The invention has beneficial effect of providing the ideal pre-mixed feed containing the organic trace element selenium for the dairy cows.
本发明的有益效果是提供了一种理想的含有机微量元素硒的奶牛用预混合饲料。
The invention has beneficial effect of providing the ideal pre-mixed feed containing the organic trace element selenium for the dairy cows.
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