Elevated Lipid Concentrations in Seminal Plasma Can Reduce Sperm Motility in Simmental Bulls.

IF 2.7 2区农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE Animals Pub Date : 2025-01-20 DOI:10.3390/ani15020276

Zhuo Yang, Fang Luo, Chenglei Song, Zhiyuan Ma, Yucheng Tian, Yu Fu, Hao Zheng, Jinzhong Tao

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Abstract

Sperm motility is a key factor influencing male fertility and is associated with metabolic and lipid profiles across species. The aim of this study was to investigate the relationship between sperm motility and the seminal plasma lipid profile in Simmental bulls, and to identify key lipids potentially influencing sperm motility. Semen samples were collected from 26 healthy Simmental bulls with an average age of 4.9 years. Sperm quality was evaluated using computer-assisted sperm analysis (CASA). Based on motility, the samples were divided into two groups: high sperm motility (HSM > 65%) and low sperm motility (LSM < 65%). Compared to the LSM group, the HSM group exhibited significantly higher sperm viability, motility, straight-line velocity, beat-cross frequency, and sperm acrosome integrity, while the sperm malformation rate was lower (p < 0.05). Lipid profiles were determined using LC-MS/MS, and 40 differential lipids were identified by multivariate statistical analysis. Among them, 39 lipids were upregulated in the LSM group compared to the HSM group. They were primarily triglycerides and carnitines, mainly involved in four metabolic pathways related to glycerophospholipid and linoleic acid metabolism. Notably, PC (16:0/20:4; 14:0/18:3), LPC (22:4/0:0; 22:6/0:0), and PE (14:0/18:1; 18:1/20:3) were diagnosed with great accuracy (AUC > 0.7), which means they may serve as potential biomarkers for sperm motility.

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来源期刊

Animals Agricultural and Biological Sciences-Animal Science and Zoology

CiteScore

4.90

自引率

16.70%

发文量

3015

审稿时长

20.52 days

期刊介绍： Animals (ISSN 2076-2615) is an international and interdisciplinary scholarly open access journal. It publishes original research articles, reviews, communications, and short notes that are relevant to any field of study that involves animals, including zoology, ethnozoology, animal science, animal ethics and animal welfare. However, preference will be given to those articles that provide an understanding of animals within a larger context (i.e., the animals'' interactions with the outside world, including humans). There is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental details and/or method of study, must be provided for research articles. Articles submitted that involve subjecting animals to unnecessary pain or suffering will not be accepted, and all articles must be submitted with the necessary ethical approval (please refer to the Ethical Guidelines for more information).