载铜凹凸棒粘土对小鼠组织中Cu2+含量的影响  

Effect of Cu2+-modified palygorskite on Cu2+ contents in the tissues of mice

作　　者：张朝政 姚大伟[1] 许莹[2] 许俊才 许家荣[1] 杨德吉[1] ZHANG Chaozheng;YAO Dawei;XU Ying;XU Juneai;XU Jiarong;YANG Deji(College of Veterinary Medicine, Nanjing Agrieuhural University, Nanjing 210095, China;Huaiyin Institute of Technology/Key Laboratory of Attapulgite Clay Utilization of Jiangsu Province, Huai＇an 223032, China;Nanjing Forster Animal Husbandry Technology Co. Ltd., Nanjing 211300, China)

机构地区：[1]南京农业大学动物医学院,江苏南京210095 [2]淮阴工学院/江苏省凹土资源利用重点实验室,江苏淮安223032 [3]南京福斯特牧业科技有限公司,江苏南京211300

出　　处：《畜牧与兽医》2018年第5期113-116,共4页Animal Husbandry & Veterinary Medicine

基　　金：江苏省凹土资源利用重点实验室开放基金(HPK201506)

摘　　要：为探讨载铜凹凸棒粘土对小鼠组织中Cu^2＋含量的影响,选取32只ICR小鼠,随机分成3组,饲喂添加不同浓度载铜凹凸棒粘土的鼠粮,试验期20 d。通过ICP光谱仪检测小鼠粪便、血液、毛发以及脏器中Cu^2＋的浓度。结果表明：各剂量组小鼠粪便中Cu^2＋浓度随试验周期呈递增趋势,说明该粘土可能在胃肠道中滞留;各剂量组小鼠主要通过粪便的形式将20%-30%Cu^2＋含量排出体外,并且在小鼠血液、毛发以及各脏器中几乎没有残留。In order to understand the effect of Cu^2＋ -modified palygorskite on Cu^2＋ contents in the tissues of mice, we measured the concentrations of residual Cu^2＋ in feces, blood, hair and organs of 32 mice by ICP spectrometer. The results showed that in the experimental groups, the concentration of Cu^2＋ in feces tended to increase as the test went on, which suggested that there might be Cu^2＋-modified palygorskite residues in the stomach and intestines. The mice in all the experimental groups excreted 20% - 30% of Cu^2＋ mainly through feces, and there were almost no Ca2＋ residue in their blood, hair and other organs.

关 键 词：凹凸棒粘土 铜离子 残留量 

分 类 号：S816[农业科学—饲料科学]