精液等离子体对野猪精子结能力的影响
Kuanfeng Zhu1, Yukun Song2, Zhi He1
1College of Animal Science, Xinjiang Agricultural University, Urumqi 830091, China.
Animals : an open access journal from MDPI
|January 8, 2025
概括
精子血的成分在具有高和低精子结能力的野猪之间有所不同,但其保护作用有限. 进一步的研究可能会确定改善猪精子冷保存的生物标志物.
科学领域:
- 生殖生物学 生殖生物学
- 动物科学动物科学
- 生物化学 生化学
背景情况:
- 精液等离子体显著影响精子功能,但其在精子冷保存中的作用,特别是在野猪中,仍然不完全理解.
- 了解精液等离子体对精子冷能力的影响对于优化猪人工授精和保护策略至关重要.
研究的目的:
- 通过代谢和蛋白质组分析,识别与精子冷保存能力相关的猪精血中的代谢物和蛋白质.
- 通过比较高和低可结性精液作为扩展剂来评估精液等离子体对野猪精子冷保存的保护作用.
主要方法:
- 采集了30只野猪的精液,在多次冷保存周期后,选择了11只具有高耐性和11只具有低耐性.
- 使用CASA分析精子运动性,通过ELISA量化生殖激素,并在精子血上进行了全面的蛋白质组学和代谢组学.
主要成果:
- 在测试的生殖激素和精子结抵抗之间没有发现显著的关联.
- 确定了13种与代谢和环境因素相关的差异表达代谢物 (DEM),以及38种与细胞骨动力学和细胞粘附有关的差异表达蛋白 (DEP).
- 33种代谢物和70种与解后精子运动相关的蛋白质,与细胞分裂,循环调节,热生成和酸盐代谢相关的蛋白质.
结论:
- 虽然高和低可结性野猪之间的精子血成分存在差异,但相似之处超过了差异,这表明保护作用有限.
- 精液等离子体表现出不起眼的冷保护性质,表现不如商业冷保存扩展剂有效.
相关概念视频
Spermatogenesis
102.1K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
102.1K
Sperm Structure and Semen Composition
1.2K
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
1.2K
Sperm Transport
635
The journey of sperm from its origin to the point of ejaculation begins within the seminiferous tubules of the testis. Here, Sertoli cells produce fluid that propels non-motile sperm through a series of conduits, starting with the straight tubules leading to the rete testis. This interconnected network of tubules acts as the initial pathway for sperm, guiding them into the efferent ductules and then into the epididymis for maturation.
The maturation phase occurs in the epididymis, where sperm...
The maturation phase occurs in the epididymis, where sperm...
635


