慢性氧化应激对断奶仔猪器官组织微量元素含量的影响
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中图分类号：S852.2 文献标志码：A 文章编号：0366-6964（2025）09-4452-09
Effect of Chronic Oxidative Stress on Trace Elements in Organ Tissues of Weaned Piglets
QIN Yang1，²，XIA Siting1 ，HE Liuqin³，WANG Tianli²，LIU Yuyan³， JIANG Xiaohan³，LIU Zhihao²，LIU Siwei²，LI Tiejun²*，YIN Yulong1，2 *
（1. College of Animal Science and Technology， Hunan Agricultural University，Changsha 410128，China ; 2. Hunan Prouincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process， Institute of Subtropical Agriculture，Chinese Academy of Sciences， Changsha 410125，China ; 3. Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation， College of Life Sciences， Hunan Normal University， Changsha 41O081， China）
Abstract： The purpose of this study was to investigate the effects of chronic oxidative stress on trace elements in organs and tissues of weaned piglets. Twelve weaned Duroc × Landrace x Yorkshire crossbred piglets were randomly divided into control group and oxidative stress group， with 6 piglets in each group. The control group was fed a basal diet，and the oxidative stress group was fed the basal diet supplemented with 10g⋅kg-1 body weight dose of D -galactose. The experiment detected the trace elements in the organ tissues of weaned piglets and the apparent digestibility of the trace elements. The results showed that the contents of Mn in liver，Feand Mn in kidney， Zn in jejunum，Fe，Cu and Mn in colon of weaned piglets in oxidative stress group were significantly lower than those in the control group （ ⋅P<0. 05⋅ .The contents of Fe and Zn in liver，Fe and Cu in jejunum，Fe and Cu in ileum of weaned piglets in oxidative stress group were significantly higher than those in the control group （ P<0. 05 ）.Compared with the control group，the apparent digestibility of Cu ， Fe and Mn were significantly decreased in oxidative stress group （ P<0.05 . In summary，the chronic oxidative stress model induced by D -galactose can change the content of trace elements in various organs and tissues of weaned piglets and reduce the metabolic efficiency of apparent digestibility in piglets.
Keywords：chronic oxidative stress；weaned piglets；race elements ∗ Corresponding authors： YIN Yulong，E-mail： yinyulong@isa. ac.cn; LI Tiejun，E-mail ： tjli @ isa ac.cn
在集约化、规模化生猪养殖过程中，猪从出生到屠宰都会受到一系列不利刺激1，尤其是断奶期间由液体奶变成固体饲料、独立适应生活环境等的影响，通常面临食欲减弱、生长受阻、免疫和用药不规范和健康状况不佳等问题[2。（剩余18622字）
