Dietary supplementation with citric acid and acid Lac could improve feed conversion efficiency.
日粮中添加乳酸宝和柠檬酸可以提高饲料的转化效率。
The changes of molecular weight, life under heat, acid value, hydroxyl value and chlorine content of lac resin during bleaching and de-chlorinating processes have been studied.
本文研究了紫胶树脂在漂白和脱氯过程中分子量、热寿命、酸价、碘价、羟基值和氯含量的变化情况。
The fact that copper pollution of laccaic acid in stick lac could not be avoided was concluded after considering its biological source and chemical nature.
从紫胶的生物来源和紫胶红色素的化学本质分析，紫胶原胶中紫胶红色素的铜污染是不可避免的。
HA C Y, WANG D X. Storage properties of bleached lac(V)-kinetics of reaction between NaClO and shellolic acid[J]. Chemistry and Industry of Forest Products, 1997,17(1):1-5.
[19]哈成勇，王定选。漂白胶贮存性质的研究（第五报）——紫胶树脂环状组分氯化动力学的研究[J]。林产化学与工业，1997，17（1）：1-5。
HA C Y, WANG D X. Storage properties of bleached lac(V)-kinetics of reaction between NaClO and shellolic acid[J]. Chemistry and Industry of Forest Products, 1997,17(1):1-5.
[19]哈成勇，王定选。漂白胶贮存性质的研究（第五报）——紫胶树脂环状组分氯化动力学的研究[J]。林产化学与工业，1997，17（1）：1-5。
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