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首页> 中文期刊> 《动物营养学报》 >绿茶粉和绿茶多酚对犬的抗氧化作用

绿茶粉和绿茶多酚对犬的抗氧化作用

         
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摘要

本试验旨在探究绿茶粉及绿茶多酚对犬的抗氧化作用.选用5月龄杂交幼犬15只,随机分为3个组,每组5只.对照组饲喂基础饲粮,绿茶粉组饲喂基础饲粮+1.0%的绿茶粉,绿茶多酚组饲喂基础饲粮+0.25%的绿茶多酚.试验期为84 d.结果表明:与试验开始时相比,试验结束时对照组犬体重增长了162%,绿茶粉组犬体重增长了101%,绿茶多酚组犬体重增长了132%,且绿茶粉组和绿茶多酚组试验结束时犬体重显著低于对照组(P<0.05),比对照组分别降低了61%和30%.试验第84天,绿茶粉组及绿茶多酚组犬血清中谷丙转氨酶(ALT)、谷草转氨酶(AST)、乳酸脱氢酶(LDH)活性均显著或极显著低于对照组(P<0.05或P<0.01),血清超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH?Px)活性极显著高于对照组(P<0.01),血清丙二醛(MDA)含量极显著低于对照组(P<0.01),肝脏抗氧化基因[谷氨酸半胱氨酸连接酶催化亚基(GCLC)、谷氨酸半胱氨酸连接酶修饰亚基(GCLM)、血红素氧合酶1(HO?1)、过氧化氢酶(CAT)]和Ⅱ相解毒酶基因[谷胱甘肽硫转移酶M1(GSTM1)和醌氧化还原酶1(NQO1)]的mRNA相对表达量显著高于对照组(P<0.05).综上所述,在本试验条件下,在犬饲粮中添加1.0%的绿茶粉或0.25%的绿茶多酚均具有保护肝脏、抗氧化、促进Ⅱ相解毒酶基因表达及控制体重的作用.%The present study was conducted to investigate the antioxidant effects of green tea powder and green tea polyphenols ( GPTs) on canines. Fifteen 5?month old canines were selected and randomly divided into three groups ( 5 canines in each group) . The canines in control group were fed a basal diet, the canines in green tea power group were fed the basal diet plus 1.00% green tea power, and the canines in GPTs group were fed the basal diet plus 0.25%GPTs. The feeding experiment lasted for 84 days. The results showed as follows: 1) compared with the initial body weight, the final body weight of control group, green tea power group and GTPs group was increased by 162%, 101% and 132%, respectively. The final body weight of green tea power group and GTPs group was significantly lower than that in control group ( P<0.05) , which was decreased by 61% and 30% compare with control group, respectively. On the 84th day of experiment, the activities of ser?um alanine transaminase ( ALT ) , aspartate aminotransferase ( AST ) and lactic dehydrogenase ( LDH ) in green tea power group and GTPs group were significantly or extremely significantly lower than those in control group (P<0.05 or P<0.01), the activities of serum glutathione peroxidase (GSH?Px) and superoxide dis?mutase ( SOD) were extremely significantly higher than those in control group ( P<0.01) , the content of ser?um malondialdehyde ( MDA) was extremely significantly lower than that in control group ( P<0.01) , and the relative mRNA expression levels of antioxidant genes [ glutamate cysteine ligase catalytic subunit ( GCLC ) , glutamate cysteine ligase subunit modification ( GCLM ) , heme oxygenase 1 ( HO?1 ) and catalase ( CAT ) ] and phase Ⅱ detoxification genes [ quinone oxidoreductase 1 ( NQO1 ) and glutathione S transferase M1 ( GSTM1) ] in liver were significantly higher than those in control group ( P<0. 01 ) . In summary, adding 1.00% green tea powder or 0.25% GTPs in the diet of canines have the effects of liver protection, antioxidant, activating phase Ⅱ detoxification gene expression and controlling body weight under the condition of the pres?ent study.

著录项

  • 来源
    《动物营养学报》 |2017年第10期|3737-3749|共13页
  • 作者

    李玉; 王一君; 张梁; 吴金节; 宛晓春; 陶焕青; 张玉蝶; 徐怡钟; 郝宁; 邹苏萍; 冯士彬; 王希春; 周裔彬;

  • 作者单位

    安徽农业大学茶树生物学与资源利用国家重点实验室,合肥 230036;

    安徽农业大学动物科技学院,合肥 230036;

    安徽农业大学茶树生物学与资源利用国家重点实验室,合肥 230036;

    安徽农业大学茶树生物学与资源利用国家重点实验室,合肥 230036;

    安徽农业大学动物科技学院,合肥 230036;

    安徽农业大学茶树生物学与资源利用国家重点实验室,合肥 230036;

    安徽农业大学动物科技学院,合肥 230036;

    安徽农业大学动物科技学院,合肥 230036;

    安徽农业大学动物科技学院,合肥 230036;

    安徽农业大学动物科技学院,合肥 230036;

    安徽农业大学动物科技学院,合肥 230036;

    安徽农业大学动物科技学院,合肥 230036;

    安徽农业大学动物科技学院,合肥 230036;

    安徽农业大学茶树生物学与资源利用国家重点实验室,合肥 230036;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 饲料;
  • 关键词

    犬; 绿茶粉; 绿茶多酚; 肝功能; 抗氧化基因; Ⅱ相解毒酶基因;

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