日粮锌源和锌水平对断奶仔猪血清及组织铜、锌沉积的影响  

Effects of Zinc Resources and Levels in Diet on the Contents of Copper,Zinc in Serum and Tissues of Weanling Piglets

作　　者：张彩英[1] 郭小权[1] 胡国良[1] 曹华斌[1] 罗军荣[1] 李麟[1] 黄爱民[1] 陈宝玉[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：《江西农业大学学报》2011年第1期96-99,172,共5页Acta Agriculturae Universitatis Jiangxiensis

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：探讨日粮锌源和锌水平对断奶仔猪血清及组织铜、锌沉积的影响。试验选用21日龄"杜×长×大"三元杂交的断奶仔猪40头,按体重和性别随机分成4组(Ⅰ～Ⅳ组),每组10头猪。分别饲喂添加氧化锌(以锌量计)Ⅰ组(对照组)100 mg/kg、Ⅱ组3 000 mg/kg和蛋氨酸锌(以锌量计)Ⅲ组100 mg/kg、Ⅳ组300 mg/kg相同的基础日粮,预试验7 d,正式试验42 d。结果表明:添加不同锌源和锌水平均能提高断奶仔猪血清锌水平,降低血清铜水平,但高锌3 000 mg/kg氧化锌使血清锌显著上升(P<0.05);高锌会降低脾脏、淋巴结、十二指肠和肾脏铜含量,提高肝铜含量。这表明高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。An experiment was conducted to study the effect of zinc resources and levels in diet on the contents of copper,zinc in serum and tissues of weanling piglets.Forty ＂Duroc×Landrace×Yorkshire＂ crossbred weanling piglets（21 d of age）were randomly divided into 4 groups of 10 piglets each by weight and sex,which were fed with a basal diet with 100 or 3 000 mg/kg zinc（from ZnO）,and 100 or 300 mg/kg zinc（from Zn-Met）,respectively.The trial lasted 49 days,including the preset period of 7 days and the test period of 42 days.The results showed that： high zinc diets increased the contents of zinc in serum significantly,decreased the contents of copper in serum and spleen,mesentery lymph nodes,duodenum and kidney（P0.05 or P0.01）,increased the contents of copper in liver,but had no difference in the serum of zinc in the other groups.It is confirmed that the high level zinc diets enhance the zinc levels in the tissues of weanling stress piglets,and reduce the copper levels in some tissues of piglets.

关 键 词：断奶仔猪 氧化锌 蛋氨酸锌 铜 锌 

分 类 号：S828.211[农业科学—畜牧学]