›› 2013, Vol. 40 ›› Issue (4): 177-179.

• 遗传繁育 • 上一篇    下一篇

添加褪黑素对牛精液品质的影响

李晓霞, 曹平华, 禹学礼, 栗颖华   

  1. 河南科技大学动物科技学院,河南洛阳 471003
  • 收稿日期:2012-09-27 出版日期:2013-04-20 发布日期:2013-04-19
  • 作者简介:李晓霞(1979-),女,河南人,博士,讲师,研究方向:哺乳动物的胚胎工程与性别控制。
  • 基金资助:
    河南科技大学博士科研启动基金资助(09001551);国家自然科学基金项目(31201801、31172207)。

The Effect of Melatonin on Semen Quality of Bovine

LI Xiao-xia, CAO Ping-hua, YU Xue-li, LI Ying-hua   

  1. College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China
  • Received:2012-09-27 Online:2013-04-20 Published:2013-04-19

摘要: 为探讨褪黑素(melatonin,MLT)在牛精液保存中的抗氧化作用,本研究利用目测法、低渗膨胀法和考马斯亮兰染色法分析了不同MLT浓度(0、10-3、10-4和10-5 mol/L)和不同孵育时间(1、4和8 h)对精子活力、质膜和顶体完整性的影响。结果发现,与对照组相比,在稀释液中分别添加10-3和10-4 mol/L MLT均可显著提高精子活力、质膜完整率和顶体完整率(P<0.05),且10-3 mol/L MLT添加效果最佳;MLT(10-3 mol/L)组在27 ℃孵育1、4 h后,其精子的活力、质膜完整率和顶体完整率均显著高于对照组(P<0.05)。因此,添加10-3 mol/L MLT可明显改善牛精液品质,提高牛精液的保存时间和保存质量。

关键词: 褪黑素; 牛精液; 活力; 质膜完整率; 顶体完整率

Abstract: The antioxidative effect of melatonin (MLT) was evaluated on preserved bovine semen. Progressive motility (using visual observation), plasma membrane integrity (using the hypoosmotic swelling test, HOST) and acrosome integrity (using coomassie blue) of bovine spermatozoa were examined at 27 ℃ with 0, 10-3, 10-4, 10-5 mol/L concentration and for 1, 4, 8 h incubation time. The results showed that progressive motility, the percentage of plasma membrane integrity and acrosome integrity of the bovine spermatozoa were higher for 10-3 and 10-4 mol/L MLT than that of the control group (P<0.05). And progressive motility, the percentage of spermatozoa with plasma membrane integrity and acrosome integrity in melatonin (10-3 mol/L ) groups at 1, 4 h were higher than that in the control group (P<0.05). In conclusion, addition of optimal concentration of MLT helped to improve semen quality and life of preserved bovine semen.

Key words: melatonin; bovine semen; progressive motility; plasma membrane integrity; acrosome integrity

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