目的研究饲粮中添加硫酸铜(CuSO4)和碱式氯化铜(tribasic Cu chloride,TBCC)对平养肉仔鸡生长性能、饲粮中维生素E和植酸酶的氧化稳定性及铜(Cu)的混合均匀度的影响。方法试验采用2×4因子的完全随机设计,把840只1日龄AA肉公鸡随机...目的研究饲粮中添加硫酸铜(CuSO4)和碱式氯化铜(tribasic Cu chloride,TBCC)对平养肉仔鸡生长性能、饲粮中维生素E和植酸酶的氧化稳定性及铜(Cu)的混合均匀度的影响。方法试验采用2×4因子的完全随机设计,把840只1日龄AA肉公鸡随机分为7个处理组,每组6个重复,每个重复20只。分别饲喂玉米-豆粕型基础饲粮(含Cu10.20mg/kg)和在基础饲粮基础上分别以CuSO4和TBCC形式添加100、150和200mg/kgCu的饲粮。试验期21d。结果添加200mg/kgCu的TBCC组鸡的日增重显著高于其余各组;添加100mg/kgCu的TBCC组鸡的肝脏和血浆VE含量显著高于CuSO4组,TBCC组饲粮中VE含量明显高于CuSO4组;TBCC组饲粮中植酸酶活性有高于CuSO4组的趋势;TBCC组鸡肝脏中Cu含量低于CuSO4组;TBCC组饲粮中Cu的混合均匀度好于CuSO4处理组。结论饲粮添加TBCC比CuSO4更能有效促进平养肉仔鸡的生长,更能减少饲粮中VE的氧化,生物安全性明显高于CuSO4。展开更多
The effects of different crystal structures of copper chloride hydroxide on the catalytic synthesis of diethyl carbonate by the oxidative carbonylation of ethanol was discussed. The catalytic activity was improved sig...The effects of different crystal structures of copper chloride hydroxide on the catalytic synthesis of diethyl carbonate by the oxidative carbonylation of ethanol was discussed. The catalytic activity was improved significantly and the active component of γ-Cu2（OH）3Cl was partially converted into Cu（OH）Cl when KCl was added in the catalyst. CO-TPD analysis of the catalyst showed that the adsorption of CO increased and the desorption temperature shifted to the right. Morphological analysis by SEM of the catalyst showed that the active component of the catalyst was highly dispersed on the carrier promoting the catalytic activity of the catalyst in the synthesis of DEC. Reaction mechanism analysis showed that the fact that Cu（OH）Cl was more active than γ-Cu2（OH）3Cl in the oxidative carbonylation of ethanol to DEC was attributed to the John-Teller effect.展开更多
文摘目的研究饲粮中添加硫酸铜(CuSO4)和碱式氯化铜(tribasic Cu chloride,TBCC)对平养肉仔鸡生长性能、饲粮中维生素E和植酸酶的氧化稳定性及铜(Cu)的混合均匀度的影响。方法试验采用2×4因子的完全随机设计,把840只1日龄AA肉公鸡随机分为7个处理组,每组6个重复,每个重复20只。分别饲喂玉米-豆粕型基础饲粮(含Cu10.20mg/kg)和在基础饲粮基础上分别以CuSO4和TBCC形式添加100、150和200mg/kgCu的饲粮。试验期21d。结果添加200mg/kgCu的TBCC组鸡的日增重显著高于其余各组;添加100mg/kgCu的TBCC组鸡的肝脏和血浆VE含量显著高于CuSO4组,TBCC组饲粮中VE含量明显高于CuSO4组;TBCC组饲粮中植酸酶活性有高于CuSO4组的趋势;TBCC组鸡肝脏中Cu含量低于CuSO4组;TBCC组饲粮中Cu的混合均匀度好于CuSO4处理组。结论饲粮添加TBCC比CuSO4更能有效促进平养肉仔鸡的生长,更能减少饲粮中VE的氧化,生物安全性明显高于CuSO4。
文摘The effects of different crystal structures of copper chloride hydroxide on the catalytic synthesis of diethyl carbonate by the oxidative carbonylation of ethanol was discussed. The catalytic activity was improved significantly and the active component of γ-Cu2（OH）3Cl was partially converted into Cu（OH）Cl when KCl was added in the catalyst. CO-TPD analysis of the catalyst showed that the adsorption of CO increased and the desorption temperature shifted to the right. Morphological analysis by SEM of the catalyst showed that the active component of the catalyst was highly dispersed on the carrier promoting the catalytic activity of the catalyst in the synthesis of DEC. Reaction mechanism analysis showed that the fact that Cu（OH）Cl was more active than γ-Cu2（OH）3Cl in the oxidative carbonylation of ethanol to DEC was attributed to the John-Teller effect.
