日粮不同锌水平对断奶仔猪血清及组织铜、锌沉积的影响  

Effect of Zinc Levels on the Contents of Copper and Zinc in Serum and Tissues of Weanling Piglets

作　　者：张彩英[1] 曹华斌[1] 胡国良[1] 郭小权[1] 黄金星[1] 

机构地区：[1]江西农业大学动物科学技术学院,江西南昌330045

出　　处：《中国畜牧兽医》2013年第5期106-109,共4页China Animal Husbandry & Veterinary Medicine

基　　金：国家自然科学基金资助项目(30860212);江西省教育厅科技项目(GJJ08183)

摘　　要：试验选用21日龄"杜×长×大"三元杂交的断奶仔猪40头,按体重和公、母各半原则随机分成Ⅰ、Ⅱ、Ⅲ和Ⅳ组,每组10头猪,分别在基础日粮中添加氧化锌,使试验Ⅰ～Ⅳ组中锌的含量分别达到100、1000、2000和3000mg/kg,预试期7d,正试期42d。结果表明,3000mg/kg锌日粮均能提高断奶仔猪血清锌水平(P<0.05),使血清锌含量显著上升(P<0.05),降低血清铜水平(P>0.05);3000mg/kg锌日粮使肝脏、肾脏和十二指肠中锌含量极显著升高(P<0.01),各组间脾脏、淋巴结中锌含量差异均不显著(P>0.05),3000mg/kg锌日粮会降低脾脏、淋巴结、十二指肠和肾脏中铜含量(P>0.05),提高肝脏中铜含量(P<0.01)。提示,3000mg/kg锌日粮能增加断奶应激仔猪体内锌水平,降低部分组织中铜含量。Forty ＂Duroc×Landrace×Yorkshire＂ crossbred weanling piglets（21 d of age） were randomly divided into 4 groups of each 10 piglets by weight and sex,which were fed the basal diet with 100,1000,2000,3000 mg/kg zinc（ZnO）,respectively.The trial lasted for 49 days,including preset period for 7 days and test period for 42 days.The results showed that 3000 mg/kg zinc（Zn） diet significantly increased the contents of zinc（P0.05）,decreased the contents of copper in serum（P0.05）.3000 mg/kg Zn could significantly increase contents of zinc in liver,kidney and duodenum（P0.01）.But it had no difference in the serum and other tissues contents of Zn in other groups（P0.05） .3000 mg/kg Zn diet could reduce the contents of copper in spleen,lymph gland,duodenum,and kidney（P0.05）,and increase the contents of copper in liver（P0.01）.It was confirmed that the 3000 mg/kg Zn diets enhanced the Zn levels in the tissues of weanling stress piglets,and reduced the copper levels in some tissues of piglets.

关 键 词：断奶仔猪 氧化锌 铜 锌 

分 类 号：S828[农业科学—畜牧学]