首页 | 官方网站   微博 | 高级检索  
     

日粮添加高水平硫酸锌和纳米氧化铜对鸡脏器组织锌铜沉积的影响
引用本文:潘娜,朱风华,王友今,陈甫,赵才兵,朱连勤.日粮添加高水平硫酸锌和纳米氧化铜对鸡脏器组织锌铜沉积的影响[J].中国农业科学,2011,44(23):4874-4881.
作者姓名:潘娜  朱风华  王友今  陈甫  赵才兵  朱连勤
作者单位:1.青岛农业大学动物科技学院,山东青岛 266109; 2.山东省农业科学院家禽研究所,济南250100
摘    要: 【目的】研究高锌(硫酸锌)常铜(纳米氧化铜)日粮对鸡脏器组织铜锌含量的影响,探讨Zn2+与纳米氧化铜在消化道吸收时的互作关系。【方法】选取1日龄SPF白莱航蛋用公雏120只,随机分为4组,每组5个重复。1组为对照组,饲喂基础日粮(以纳米氧化铜的形式添加铜8 mg?kg-1);2—4组为高锌组,以ZnSO4?7H2O的形式分别在基础日粮中添加锌250、500和1 000 mg?kg-1。【结果】日粮添加锌250—1 000 mg?kg-1,受试鸡肝、腺胃、十二指肠和空肠中锌和金属硫蛋白含量显著高于对照组(P<0.01或P<0.05),鸡十二指肠铜含量极显著高于对照组(P<0.01)。日粮添加锌1 000 mg?kg-1时,空肠铜含量极显著高于对照组和日粮锌添加组(锌添加量分别为:250和500 mg?kg-1,P<0.01)。试验至42 d,日粮添加锌500和1 000 mg?kg-1时,鸡肝脏铜含量极显著高于对照组和日粮锌添加组(锌添加量为:250 mg?kg-1,P<0.01)。日粮锌水平与鸡肝脏、十二指肠、空肠和腺胃锌含量呈显著正相关(P<0.05),与十二指肠、空肠铜含量呈显著正相关(P<0.05),与肝脏铜含量呈正相关(P>0.05),与十二指肠、腺胃和空肠金属硫蛋白含量呈正相关(P>0.05)。肝脏金属硫蛋白含量和铜含量呈极显著正相关(P<0.01);十二指肠、空肠金属硫蛋白含量和铜含量呈正相关(P>0.05)。【结论】日粮添加高水平硫酸锌没有拮抗鸡对纳米氧化铜的消化吸收,纳米氧化铜在消化道可能是以纳米颗粒的形式吸收。

关 键 词:纳米氧化铜    SPF鸡            金属硫蛋白
收稿时间:2010-11-19

Effects of Diets Supplemented with Nano-CuO and High Level of Zinc Sulfate on Copper and Zinc Contents of Visceral Tissues of Chickens
PAN Na , ZHU Feng-hua , WANG You-ling , CHEN Fu , ZHAO Cai-bing , ZHU Lian-qin.Effects of Diets Supplemented with Nano-CuO and High Level of Zinc Sulfate on Copper and Zinc Contents of Visceral Tissues of Chickens[J].Scientia Agricultura Sinica,2011,44(23):4874-4881.
Authors:PAN Na  ZHU Feng-hua  WANG You-ling  CHEN Fu  ZHAO Cai-bing  ZHU Lian-qin
Abstract:【Objective】 In order to discover the interaction between Zn2+ and nano-CuO in the digestive tract of chickens, an experiment was conducted to determine the effect of high zinc (ZnSO4?7H2O) and normal copper (nano-CuO) diets on copper and zinc contents of visceral tissues in chickens.【Method】One hundred and twenty one-day-old White Leghorn SPF chickens were divided into 4 groups randomly, and five replicates for each group. The basal diet was supplemented with nano-CuO to supply the copper level ats 8 mg?kg-1. The chickens of control group were fed with basal diet. The chickens of trial groups were fed with diets supplemented with ZnSO4?7H2O to supply the zinc level at 250 mg?kg-1, 500 mg?kg-1 and 1 000 mg?kg-1, respectively.【Result】The results showed that when the chickens were fed with diets containing zinc at 250 mg?kg-1, 500 mg?kg-1 and 1 000 mg?kg-1, the zinc and metallotionein contents of liver, proventriculus, duodenum and jejunum were significantly higher than the control group (P<0.01 or P<0.05), and the copper contents of duodenum were significantly higher than the control group (P<0.01). When the diets containing zinc at 1 000 mg?kg-1 were fed to chickens, the copper contents of jejunum were significantly higher than the control group and when the diets containing zinc at 250 mg?mg-1 and 500 mg?mg-1 were fed to chickens (P<0.01). On 42nd day, when the chickens were fed with diets containing zinc at 500 mg?kg-1 and 1 000 mg?kg-1, the copper contents of liver were significantly higher than the control group and when the chickens were fed with diets containing zinc at 250 mg?mg-1 (P<0.01). The zinc levels of the diets had a remarkable positive correlation with zinc contents of liver, proventriculus, duodenum and jejunum (P<0.05), had a remarkable positive correlation with copper contents of duodenum and jejunum (P<0.05), and had a positive correlation with copper contents of liver (P>0.05). There was a positive correlation between zinc levels of the diets and the metallothionein contents of duodenum, jejunum and proventriculus (P>0.05), a significant positive correlation between metallothionein and copper contents of the liver (P<0.01), and a positive correlation between metallothionein and copper content of duodenum and jejunum (P>0.05).【Conclusion】It is concluded that the absorption of nano-CuO is not antagonized by high level of zinc of diets supplemented with ZnSO4?7H2O in the intestines of chickens, the nano-Cuo can be absorbed in the form of nanoparticle.
Keywords:nano-CuO  SPF chicken  copper  zinc  metallothionein
本文献已被 万方数据 等数据库收录!
点击此处可从《中国农业科学》浏览原始摘要信息
点击此处可从《中国农业科学》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号