分子量大，不能被动物吸收，无药物残留。
It could not be absorbed by animal because the much molecular weight and has no drug residual.
本发明突出优点是：该添加剂代替化学抗生素，是一种无毒无副作用、无药物残留的绿色安全饲料添加剂。
The additive is one kind of green feed additive without toxic side effect and medicine residue and may be used to replace antibiotic.
同时本文对黄芩苷磷脂复合物溶剂残留量及鼻黏膜刺激性进行了考察，结果表明，无四氢呋喃有机溶剂残留，且药物没明显的刺激性。
At the same time , we did the study of organic solvent residue and irritation to nasal mucosa. The results illustrate that the complex has no residue of tetrahydrofuran and no obvious irritation.
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