畜牧兽医学报 ›› 2019, Vol. 50 ›› Issue (11): 2357-2364.doi: 10.11843/j.issn.0366-6964.2019.11.021

• 研究简报 • 上一篇    下一篇

基于两种液质联用技术研究西门塔尔种公牛精子活力与精浆肉碱的关系

罗芳, 刘继甜, 陶金忠*   

  1. 宁夏大学农学院动物科学系, 银川 750021
  • 收稿日期:2019-05-13 出版日期:2019-11-23 发布日期:2019-11-23
  • 通讯作者: 陶金忠,主要从事家畜繁殖及繁殖障碍的研究,E-mail:tao_jz@nxu.edu.cn
  • 作者简介:罗芳(1995-),女,甘肃武威人,硕士,主要从事动物生物标识物的筛选,E-mail:1321195999@qq.com
  • 基金资助:
    国家自然科学基金(31661731;31160523;31660371)

Relationship between Sperm Motility and Seminal Plasma Carnitine in Simmental Bull Based on Two LC-MS Technology

LUO Fang, LIU Jitian, TAO Jinzhong*   

  1. Department of Animal Science, School of Agriculture, Ningxia University, Yinchuan 750021, China
  • Received:2019-05-13 Online:2019-11-23 Published:2019-11-23

摘要: 旨在研究西门塔尔种公牛精子活力与精浆肉碱的关系。本研究共采集26份西门塔尔种公牛精液,根据精子活力进行分组,其中异常组12个样本,正常组14个样本。采用超高效液相色谱-四极杆-飞行时间质谱(UPLC-Q-TOF MS)技术对样品进行非靶测定,同时应用超高效液相色谱-三重四极杆-飞行时间质谱(UPLC-Q-Trap MS)技术进行广靶脂质测定,对于测定结果应用主成分分析(PCA)和正交偏最小二乘法-判别分析(OPLS-DA)进行统计分析。结果显示,异常组精浆代谢轮廓较正常组发生明显变化,将两种方法检测出的差异显著的肉碱进行分析,在精液活力异常组中,L-氯化棕榈酰肉碱、L-棕榈酰肉碱、硬脂酰肉碱、游离肉碱、乙酰肉碱、羟丁基-肉碱、3-羟基辛基肉碱、肉毒杆菌-肉碱、己烯基肉碱浓度显著高于活力正常组(P<0.05)。这些肉碱浓度与西门塔尔种公牛精液活力呈负相关,为研究牛精液品质的判定提供新的方法和思路。

Abstract: This experiment aimed to study the relationship between sperm motility and seminal plasma carnitine in Simmental bull. Twenty-six semen samples of Simmental bulls were collected, 12 of which were viewed as abnormal group, and 14 of which were viewed as normal group according to their sperm motility. Ultra-high Performance Liquid Chromatography-Quadrupole-Time-Of-Flight Mass Spectrometry (UPLC-Q-TOF MS) technique was used for non-target determination of samples, the Ultra-high Performance Liquid Chromatography-Quadrupole-Trap Mass Spectrometry (UPLC-Q-Trap MS) technology was used for broad-target lipid determination, principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis (OPLS-DA) were used for statistical analysis. The results of multivariate statistics showed that the metabolic profile of seminal plasma in the abnormal group changed obviously compared with the normal group. The carnitine with significant difference detected by the two methods was analyzed, in the abnormal group, the concentration of decanoyl-L-carnitine, L-palmitoylcarnitine, stearoylcarnitine, free carnitine, acetyl-carnitine, hydroxybutyryl-carnitine, 3-hydroxyoctanoyl carnitine, myristoyl-carnitine and decenoyl-carnitine were significantly higher than those in the normal group (P<0.05). These carnitine concentrations were negatively correlated with the sperm motility of Simmental bulls, which would provide new methods and ideas for studying the determination of bovine semen quality.

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