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日粮高锌对断奶仔猪血清及组织铜、锌沉积的影响
Effect of High Zinc in Diet on the Contents of Copper,Zinc in Serum and Tissues of Weanling Piglets
【作者】 张彩英; 曹华斌; 胡国良; 郭小权; 罗军荣; 李麟; 黄爱民; 黄金星;
【Author】 ZHANG Cai-ying,GUO Xiao-quan,HU Guo-liang~*,CAO Hua-bin,LUO Jun-rong,LI Lin,HUANG Ai-ming,HUANG Jin-xing (College of Animal Science and Technology,Jiangxi Agricultural University,Nanchang 330045,China)
【机构】 江西农业大学动物科学技术学院;
【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100mg/kg(对照组)、Ⅱ组1000mg/kg、Ⅲ组2000mg/kg锌、Ⅳ组3000mg/kg相同的基础日粮,预试验7d,正式试验42d。结果表明:高锌日粮均能提高断奶仔猪血清锌水平,降低血清铜水平,但3000 mg/kg氧化锌使血清锌含量显著上升(P<0.05);高锌使肝脏、肾脏和十二指肠锌含量极显著升高(P<0.01),脾脏、淋巴结锌含量各组间差异均不显著(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。
【Abstract】 Forty "DurocxlandracexYorkshire’" crossbred weanling piglets(21 d of age)were randomly divided into 4 groups of 10 piglets each by weight and sex,which were fed a basal diet with 100,1000.2000,3 000 mg/kg zinc(from ZnO),respectively.The trial lasted for 49 days,including preset period for 7 days and test period for 42 days.The results showed that:high zinc diets increased the contents of zinc in liver,kidney,duodenum and serum significantly,decreased the contents of copper in serum and spleen,mesentery lymph nodes,duodenum and kidney(P<0.05 or P<0.01),increased the contents of copper in liver,but had no difference in the serum and other tissue contents of zinc in other groups.It is confirmed that the high level zinc diets enhanced the zinc levels in the tissues of weanling stress piglets,and reduced the copper levels in some tissues of piglets.
- 【会议录名称】 中国畜牧兽医学会家畜内科学分会第七届代表大会暨学术研讨会论文集(下册)
- 【会议名称】中国畜牧兽医学会家畜内科学分会第七届代表大会暨学术研讨会
- 【会议时间】2011-11-04
- 【会议地点】中国江西南昌
- 【分类号】S828.5
- 【主办单位】中国畜牧兽医学会家畜内科学分会