畜牧兽医学报 ›› 2018, Vol. 49 ›› Issue (10): 2154-2162.doi: 10.11843/j.issn.0366-6964.2018.10.011

• 生物技术与繁殖 • 上一篇    下一篇

表没食子儿茶素没食子酸酯对牛冷冻精液品质及受精能力的影响

黄自强1,2, 王玲玲1,2,3, 庞云渭1,2, 郝海生1,2, 杜卫华1,2, 赵学明1,2, 刘岩1,2, 朱化彬1,2*   

  1. 1. 中国农业科学院北京畜牧兽医研究所, 北京 100193;
    2. 中国农业科学院家畜品种改良与繁育工程技术研究中心, 北京 100193;
    3. 山东奥克斯畜牧种业有限公司, 济南 250100
  • 收稿日期:2018-01-22 出版日期:2018-10-23 发布日期:2018-10-23
  • 通讯作者: 朱化彬,研究员,博士生导师,主要从事家畜胚胎工程与繁殖技术研究,E-mail:zhuhuabin@caas.cn
  • 作者简介:黄自强(1993-),男,安徽濉溪人,硕士,主要从事动物胚胎工程研究,E-mail:ahhuangziqiang@163.com
  • 基金资助:

    国家奶牛产业技术体系项目(CARS-36);中国农业科学院科技创新工程项目(ASTIP-2016-IAS-06)

Effects of Epigallocatechin-3-gallate on Bovine Frozen Semen Quality and Subsequent Fertilization Ability

HUANG Zi-qiang1,2, WANG Ling-ling1,2,3, PANG Yun-wei1,2, HAO Hai-sheng1,2, DU Wei-hua1,2, ZHAO Xue-ming1,2, LIU Yan1,2, ZHU Hua-bin1,2*   

  1. 1. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. Center of Domestic Animal Reproduction and Breeding, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    3. Shandong OX Livestock Breeding Co., Ltd, Jinan 250100, China
  • Received:2018-01-22 Online:2018-10-23 Published:2018-10-23

摘要:

本试验旨在探究牛冷冻-解冻精液中添加不同浓度表没食子儿茶素没食子酸酯(epigallocatechin-3-gallate,EGCG)对精液品质及受精能力的影响。在牛冷冻-解冻精液中添加不同浓度(0、5、10和20 μmol·L-1)EGCG,38.5℃孵育1 h后,检测精子动力学参数、结构完整性、精子中相关酶活力和体外受精能力。结果表明,10 μmol·L-1 EGCG处理显著提高了精子活力(TM,%)和鞭打频率(BCF,Hz,P<0.05);与对照组相比,5、10和20 μmol·L-1 EGCG处理组精子质膜和顶体完整率显著升高(P<0.05);5和10 μmol·L-1 EGCG处理组精子线粒体膜完整率显著升高(P<0.05);10和20 μmol·L-1 EGCG处理能够显著提高精子中超氧化物歧化酶(SOD)和过氧化氢酶(CAT)活力,10 μmol·L-1EGCG处理降低乳酸脱氢酶(LDH)活力和丙二醛(MDA)含量(P<0.05);10和20 μmol·L-1 EGCG处理显著提高了精子受精后早期胚胎卵裂率和囊胚率(P<0.05)。综上表明,10 μmol·L-1 EGCG处理牛冷冻-解冻精液能提高精液品质及受精能力。

Abstract:

The present study aimed to investigate the effects of epigallocatechin-3-gallate (EGCG) on bovine frozen-thawed semen quality and subsequent fertilization ability. The frozen-thawed semen were incubated with different concentrations of EGCG(0, 5, 10 and 20 μmol·L-1) at 38.5℃ for 1 h. Kinetic parameters, structural integrity, activities of related enzymes and subsequent fertilization ability were measured. The results revealed that supplementation with 10 μmol·L-1 EGCG significantly improved the percentage of total motile sperms(TM,%) and the beat cross frequency (BCF, Hz, P<0.05). The percentages of spermatozoa with intact plasma membrane and acrosome were significantly higher in 5, 10 and 20 μmol·L-1 EGCG treated groups compared with the control group(P<0.05). 5 and 10 μmol·L-1 EGCG led to higher mitochondrial membrane integrity(P<0.05). The activities of SOD and CAT in spermatozoa treated with 10 and 20 μmol·L-1 EGCG were significantly increased, while the LDH activity and MDA level were markedly decreased in 10 μmol·L-1 EGCG group(P<0.05). The cleavage and blastocyst development rates of in vitro-produced bovine embryos originating from 10 and 20 μmol·L-1 EGCG-treated spermatozoa were significantly higher than for embryos from other groups(P<0.05). In summary, 10 μmol·L-1 EGCG can enhance the quality and subsequent fertilization ability of bovine frozen-thawed semen.

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