| 断奶日龄对仔猪心肌、背最长肌和半腱肌抗氧化功能的影响 |
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| 引用本文： | 李留安,王凤云,杨晶晶,王转丁,刘念,范净伊,马哈巴·图孜,崔君.断奶日龄对仔猪心肌、背最长肌和半腱肌抗氧化功能的影响[J].家畜生态,2013(10):29-33. |
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| 作者姓名： | 李留安 王凤云 杨晶晶 王转丁 刘念 范净伊 马哈巴·图孜 崔君 |
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| 作者单位： | [1]南京农业大学畜牧学博士后科研流动站,江苏南京210095;天津农学院动物科学系天津300384 [2]河南农业大学现代实验技术（管理）中心,河南郑州450002 [3]天津农学院动物科学系,天津300384 |
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| 基金项目： | 中国博士后科学基金项目（2011M500937）;天津市自然科学基金项目（13JCYBJC25300）;江苏省博士后科研资助计划项目（1102078C）;天津农学院大学生科技创新活动项目（201210） |
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| 摘 要： | 为研究不同断奶日龄对仔猪心肌、背最长肌和半腱肌抗氧化功能的影响,试验选取受试仔猪24头,随机分为4个处理,每个处理6个重复,每个重复1头仔猪,各处理仔猪分别在14日龄、21日龄、28日龄和35日龄断奶,所有仔猪在42日龄宰杀取样.测定仔猪相应组织的MDA含量和抗氧化酶活性.结果表明,随着断奶日龄的推迟,仔猪心肌、背最长肌和半腱肌中MDA含量逐渐降低,35日龄断奶组仔猪心肌MDA含量显著低于14日龄组（P＜0.05）,28日龄和35日龄断奶组背最长肌和半腱肌MDA含量显著低于14日龄组（P＜0.05）;与28日龄和35日龄断奶组相比,14日龄断奶组心肌T-SOD、GSH-Px活性（P＜0.05）以及半腱肌GSH-Px活性均显著降低（P＜0.05）,各断奶日龄组仔猪背最长肌抗氧化酶活性无显著差异.以上结果提示,仔猪断奶日龄越早,其肌肉组织脂质过氧化反应越强,抗氧化功能越低.
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| 关 键 词： | 断奶日龄 仔猪 肌肉 抗氧化功能 |
Effects of Weaning Ages on Antioxidant Capacity of Cardiac Muscle, the Longissimus Muscle and Semitendinosus in Piglets |
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| LI Liu-an,WANG Feng-yun,YANG Jing-jing,WANG Zhuan-ding,LIU Nian,FAN Jing-yi,MAHABA Tu-zi,CUI Jun.Effects of Weaning Ages on Antioxidant Capacity of Cardiac Muscle, the Longissimus Muscle and Semitendinosus in Piglets[J].Ecology of Domestic Animal,2013(10):29-33. |
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| Authors: | LI Liu-an WANG Feng-yun YANG Jing-jing WANG Zhuan-ding LIU Nian FAN Jing-yi MAHABA Tu-zi CUI Jun |
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| Institution: | 1. Animal Husbandry Post-doctoral Station, Nanjing Agricultural University, Nanjing, Jaingsu, 210095, China 2. Department of Animal Science, Tianjin Agricultural University, Tianjin 300384, China; 3. Modern Experimental Technology (Management) Center, Henan Agricultural University, Zhengzhou , Henan 450002, China) |
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| Abstract: | In order to investigate the effects of weaning ages on antioxidant capacity of cardiac muscle,the longissimus muscle and semitendinosus in piglets,24 piglets were randomly assigned to four treatments,with six replicates in each treatment and one piglet in each replicate.These piglets of different treatments were weaned at d 14,21,28 and 35,respectively,and all piglets were slaughtered at the age of d 42 and tissue samples were acquired.The MDA contents and antioxidant enzyme activities of these tissues were determined.The results showed that the MDA contents of cardiac muscle,the longissimus muscle and semitendinosus in piglets declined gradually with the delayed weaning ages,cardiac muscle MDA contents of the group weaned at 35 ages decreased significantly than that of the group weaned at d 14（P〈0.05）,MDA contents of the longissimus muscle and semitendinosus of the groups weaned at d 28 and d 35 also decreased significantly than that of the group weaned at d 14（P〈0.05）; compared with the groups weaned at d 28 and 35,the T-SOD and GSH-Px activities of cardiac muscle and GSH-Px activities of semitendinosus in d 14 weaned group declined markedly（P〈0.05）,antioxidant enzyme activities of the longissimus in these groups had no significant difference.The above results suggested that the lipid peroxidative reaction of these muscle tissues was stronger with the sooner weaning age and the antioxidant function of piglets got weaker. |
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| Keywords: | weaning ages piglets muscle antioxidant capacity |
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