动物营养学报2009，Vol.21Issue(4)：534-539,6.DOI:10.3969/j.issn.1006-267x.2009.04.018
纳米氧化锌对肉仔鸡抗氧化性能的影响
Effects of Nano-zinc Oxide on Antioxidant Function in Broilers
摘要
Abstract
The experiment was conducted to study the effects of nano-zinc oxide on antioxidant function in broilers.One hun-dred and ninety-two Arbor Acres (AA) broilers at the age of one day old were randomly divided into 4 groups with 4 repli-cates in each group and 12 birds in each replicate.The zinc sulfate (zinc level of 80 mg/kg) supplemented in diet was the control group (group A).Zinc supplemental levels of 40, 80, 120 mg/kg were groups B, C and D, which were added as nano-zinc oxide.The experiment lasted for 6 weeks.The results were as follows: supplemental Zn level of 40 mg/kg, the activity of GSH-Px in serum (21, 42 d) of broiler were significantly increased (P<0.05, P<0.01), the T-AOC in serum (21, 42 d) were significantly increased (P<0.01, P<0.01), the content of MDA in serum (21 d) were reduced (P< 0.05) ; Zn supplemental level of 80 mg/kg, the activity of GSH-Px (42 d) was significantly increased (P<0.01), the CAT and T-AOC in liver (42 d) were significantly increased (P<0.05, P<0.01), the activity of T-AOC in serum (21 d) was significantly increased (P<0.05), the content of NO in serum (21, 42 d) were reduced (P<0.05, P<0.01), and en-hanced the ability of inhibiting hydroxyl radical (·OH) in serum (42 d) (P<0.05), also enhanced the activity of resisting superoxide anion free radical (O2-·) in liver (21 d) (P<0.05).The results showed that adding protein-bound zinc and nano-zinc oxide to diet could enhance antioxidant function in broilers, strengthen the activities of antioxidases and reduce the levels of free radicals, in which supplemental nano-zinc oxide level of 40, 80 mg/kg were optimal levels.关键词
纳米氧化锌/抗氧化性能/肉仔鸡/自由基Key words
Nano-zinc oxide/Antioxidant function/Broilers/Free radicals分类
农业科技引用本文复制引用
田丽娜,朱风华,任慧英,姜建阳,李文立..纳米氧化锌对肉仔鸡抗氧化性能的影响[J].动物营养学报,2009,21(4):534-539,6.基金项目
青岛农业大学重点资助项目"微量元素对鸡体内自由基防御系统调控机制研究"(610613) （610613）
