The result showed that adding different dosages of radix platycodonis could protect the chicken of ILT.
结果表明：添加不同剂量的中药桔梗提取物均可对鸡群产生保护作用。
Objective:To discuss the distribution characteristics of total saponin in radix platycodonis and provide the theoretical basis for the quality standard.
前言： 目的：探讨桔梗总皂苷在根中的分布规律，为桔梗质量标准的完善提供理论依据。
Objective:To discuss the distribution characteristics of total saponin in radix platycodonis and provide the theoretical basis for the quality standard.
前言： 目的：探讨桔梗总皂苷在根中的分布规律，为桔梗质量标准的完善提供理论依据。
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