| 茶多酚和L-茶氨酸对热应激下蛋用仔公鸡生长性能及抗氧化能力的影响 |
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| 引用本文： | 汪丽伟,蔡海莹.茶多酚和L-茶氨酸对热应激下蛋用仔公鸡生长性能及抗氧化能力的影响[J].中国畜牧兽医,2013,40(12):76-80. |
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| 作者姓名： | 汪丽伟 蔡海莹 |
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| 作者单位： | 1. 安徽农业大学茶与食品科技学院, 安徽合肥 230036;2. 安徽农业大学动物科技学院, 安徽合肥 230036 |
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| 基金项目： | 安徽省科技厅年度重点科技项目（12070303035）。 |
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| 摘 要： | 本试验采用单因子试验设计研究茶多酚与L-茶氨酸在热应激下对蛋用仔公鸡生长性能及抗氧化能力的影响。选用1日龄蛋用仔公鸡180只，随机分为6组，每组3个重复，每个重复10只鸡。试验1组为对照组，饲喂基础日粮；试验2~6组分别在基础日粮中添加400 mg/kg茶多酚、200 mg/kg L-茶氨酸、200 mg/kg茶多酚+200 mg/kg L-茶氨酸、400 mg/kg茶多酚+200 mg/kg L-茶氨酸、600 mg/kg茶多酚+200 mg/kg L-茶氨酸，试验期28 d。结果表明，茶多酚可有效降低热应激下蛋用仔公鸡的料重比（P<0.05），L-茶氨酸单独添加或与茶多酚同时添加对生长性能影响均不显著（P>0.05）；茶多酚可显著降低各组织器官的丙二醛（MDA）含量 （P<0.05），显著提高各组织器官的谷胱甘肽过氧化物酶（GSH-Px）与过氧化氢酶（CAT）活性（P<0.05）；L-茶氨酸能显著提高各组织器官的CAT活性（P<0.05），不同程度降低各组织器官的MDA含量；茶多酚与L-茶氨酸同时添加时，抗氧化能力与茶多酚的添加量不呈正比；400 mg/kg茶多酚+200 mg/kg L-茶氨酸组肝脏样总超氧化物歧化酶（T-SOD）与GSH-Px活性均显著降低（P<0.05），MDA含量显著提高（P<0.05）。在热应激条件下，200 mg/kg茶多酚+200 mg/kg L-茶氨酸同时添加时，抗氧化效果较理想。
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| 关 键 词： | 茶多酚 L-茶氨酸 生长性能 抗氧化能力 |
| 收稿时间： | 2013-04-25 |
Effects of Tea Polyphenol and L-theanine on Growth Performance and Antioxidant Performance of Egg-laying Chickens under Heat Stress |
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| WANG Li-wei,CAI Hai-ying.Effects of Tea Polyphenol and L-theanine on Growth Performance and Antioxidant Performance of Egg-laying Chickens under Heat Stress[J].China Animal Husbandry & Veterinary Medicine,2013,40(12):76-80. |
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| Authors: | WANG Li-wei CAI Hai-ying |
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| Institution: | 1. College of Tea & Food Science, Anhui Agricultural University, Hefei 230036, China;2. College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China |
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| Abstract: | In order to investigate the effects of tea polyphenols (TP) and L-theanine on growth performance and antioxidant performance of egg-laying chickens under heat stress,single factor design was adopted.180 one-day old chickens were randomly assigned to six groups for three replicates (10 chicks for each). Group 1 was the control group,was fed on a basal diet;groups 2 to 6 were the treatment groups,were fed with 400 mg/kg TP, 200 mg/kg L-theanine, 200 mg/kg TP and 200 mg/kg L-theanine,400 mg/kg TP and 200 mg/kg L-theanine, 600 mg/kg TP and 200 mg/kg L-theanine in the basal diet. The trial period was 28 d. The results indicated that TP could decrease feed gain significantly (P<0.05),L-theanine added alone or combined with TP had no significant effects on growth performance (P>0.05). TP could decrease the tissues and organs's content of MDA significantly (P<0.05),and enhance the activities of GSH-Px and CAT significantly (P<0.05).L-theanine could improve the activity of CAT significantly (P<0.05),and decreased the tissues and organs's content of MDA in different degrees.TP combined with L-theanine, the antioxidant performance was out of step with the addition of TP. When 400 mg/kg TP and 200 mg/kg L-theanine were added,the T-SOD and GSH-Px activities of liver significantly decreased (P<0.05),the MDA content increased significantly (P<0.05). Under heat stress,the addition of 200 mg/kg TP and 200 mg/kg L-theanine is the most appropriate antioxidant effect. |
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| Keywords: | tea polyphenol L-theanine growth performance antioxidant performance |
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