畜牧兽医学报 ›› 2018, Vol. 49 ›› Issue (9): 2054-2062.doi: 10.11843/j.issn.0366-6964.2018.09.027

• 研究简报 • 上一篇    

葡萄糖对绒山羊精子冷冻保存及代谢的影响

栗瑞兰1, 张通1, 刘志红1,2,3, 王瑞军1,2,3, 李金泉1,2,3*, 张家新1,2,3*   

  1. 1. 内蒙古农业大学动物科学学院, 动物遗传育种与繁殖自治区重点实验室, 呼和浩特 010018;
    2. 农业部肉羊遗传育种重点实验室, 呼和浩特 010018;
    3. 内蒙古自治区山羊遗传育种工程技术研究中心, 呼和浩特 010018
  • 收稿日期:2017-12-29 出版日期:2018-09-23 发布日期:2018-09-23
  • 通讯作者: 李金泉,教授,主要从事动物遗传育种研究,E-mail:lijinquan_nd@126.com;张家新,教授,主要从事动物繁殖技术与胚胎工程研究,E-mail:zjxcau@163.com
  • 作者简介:栗瑞兰(1987-),山西五寨人,博士生,主要从事动物繁殖技术与胚胎工程研究,E-mail:liruilan202@126.com
  • 基金资助:

    内蒙古自治区自然科学基金重大项目(2016ZD02);国家自然科学基金(31460598);内蒙古自治区科技重大专项:山羊遗传育种工程技术研究中心建设项目

The Effect of Glucose on Cryopreservation and Metabolism of Cashmere Goat Sperm

LI Rui-lan1, ZHANG Tong1, LIU Zhi-hong1,2,3, WANG Rui-jun1,2,3, LI Jin-quan1,2,3*, ZHANG Jia-xin1,2,3*   

  1. 1. Inner Mongolia Autonomous Region Key Laboratory of Animal Genetics, Breeding and Reproduction, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China;
    2. Key Laboratory of Mutton Sheep Genetics and Breeding of Ministry of Agriculture, Hohhot 010018, China;
    3. Engineering Research Center for Goat Genetics and Breeding of Inner Mongolia Autonomous Region, Hohhot 010018, China
  • Received:2017-12-29 Online:2018-09-23 Published:2018-09-23

摘要:

旨在研究葡萄糖对绒山羊精子冷冻保存及代谢的影响。本研究将混合后的精液样品,在含有不同浓度葡萄糖(0、28、56、84和112 mmol·L-1)的冷冻稀释液进行冷冻-解冻,利用计算机辅助精液分析系统(CASAS)、流式细胞仪和酶标仪检测精子的运动性能、精子DNA完整性、顶体完整性、质膜完整性和精子中ROS和Ca2+水平,以及精子中ATP浓度、精子悬浮液中乳酸和丙酮酸浓度。结果表明,在冷冻稀释液中添加56 mmol·L-1葡萄糖可以显著提高绒山羊精子冷冻-解冻后的精子活力、完整顶体和完整质膜的精子比率(P<0.05),但各组间完整DNA的精子比率差异不显著(P>0.05)。56 mmol·L-1葡萄糖组精子细胞中ROS水平极显著高于其它各组(P<0.01);28和56 mmol·L-1葡萄糖组精子细胞中Ca2+水平极显著低于其它各组(P<0.01);与其它各组相比,56和84 mmol·L-1葡萄糖组精子细胞中ATP浓度极显著升高(P<0.01)。精液解冻后,在低葡萄糖浓度组(28~56 mmol·L-1)的精子悬浮液中未检测到乳酸,而112 mmol·L-1组检测到大量乳酸(P<0.01);当冷冻稀释液中添加低浓度的葡萄糖(28~84 mmol·L-1),葡萄糖对精子悬浮液中丙酮酸的产生存在剂量依赖性作用,而高浓度(112 mmol·L-1)组中丙酮酸产生减少(P<0.05)。综上表明,在冷冻稀释液中添加56 mmol·L-1葡萄糖可以促进绒山羊精子冷冻-解冻过程中的代谢,提高其冷冻保存效果。

Abstract:

The purpose of this study was to investigate the effect of glucose on cryopreservation and metabolism of cashmere goats semen. In this study, the mixed semen samples were diluted in extender containing different concentrations of glucose (0, 28, 56, 84 and 112 mmol·L-1) and frozen-thawed. After thawing, sperm motility, the percentage of sperm with intact DNA, intact acrosome and intact plasm membrane, level of ROS and Ca2+ in sperm and concentration of ATP in sperm, and concentrations of lactic acid and pyruvic acid in sperm suspension were assessed by using computer-assisted sperm analysis system (CASAS), flow cytometry and microplate reader, respectively. The results showed that the semen extender supplemented with 56 mmol·L-1 glucose could increase sperm motility, the percentage of intact acrosome and plasm membrane in frozen-thaw cashmere goats semen (P<0.05), however no significant differences were observed in the percentages of intact DNA among the groups (P>0.05). The group of 56 mmol·L-1 glucose could extremely significantly increase the level of ROS (P<0.01),while the groups of 28 and 56 mmol·L-1 glucose could extremely significantly decrease the level of Ca2+(P<0.01); the group of 56 and 84 mmol·L-1 glucose extremely significantly increase the ATP concentration, in comparison to the other concentration groups (P<0.01). After thawing, lactic acid was not detected in the low concentration glucose groups (28-56 mmol·L-1), but a large amount of lactic acid was detected in the 112 mmol·L-1glucose group(P<0.01). Glucose had a dose-dependent effect on pyruvic acid production in sperm suspension when semen extender supplemented with low concentration glucose(28-84 mmol·L-1), but high concentration glucose (112 mmol·L-1) significantly decreased pyruvic acid production(P<0.05). In summary, the semen extender supplemented with 56 mmol·L-1 glucose could promote metabolism of cashmere goat sperm during freeze-thawing and improve cryopreservation effect.

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