精子样本的储存条件和通过无人机 (Apis mellifera) 中的精子头形态学进行精子表征 (gametic characterization)
Milagros Cristina Esteso1, Adolfo Toledano-Díaz1, Cristina Castaño1
1Departamento de Reproducción Animal, INIA-CSIC, 28040 Madrid, Spain.
Animals : an open access journal from MDPI
|March 13, 2025
概括
无人机精子的最佳储存包括15°C的化和催化酶补充,以提高生命力和运动性. 无人机精子表现出显著的形,在个体内头部大小的变化比在个体之间更大.
科学领域:
- 生殖生物学 生殖生物学
- 动物科学动物科学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 无人机精子质量对于人工授精和繁殖计划至关重要.
- 了解最佳储存条件和精子特征对于繁殖成功至关重要.
研究的目的:
- 为了确定无人机精子储存的最佳温度和扩展器补充剂.
- 描述无人机精子头部形态测量和评估变异性.
主要方法:
- 进行了三项实验,涉及291架成熟无人机.
- 在不同化温度 (5°C,15°C,37°C) 和补充催化酶的情况下,评估了精子的生命力和运动性.
- 用长度,宽度,面积和周长等参数分析精子头形状.
主要成果:
- 精子活力在15°C时显著保持.
- 催化酶 (200 IU) 补充剂在液体储存期间改善了精子的活力和运动性.
- 无人机精子头尺寸的特征是,在无人机内观察到高的变化 (pleomorphism).
结论:
- 15°C是无人机储存精子的最佳温度.
- 催化酶补充剂在液体保存期间提高无人机精子质量.
- 无人机中显著的精子形需要在生殖策略中考虑.
相关概念视频
01:22Sperm Structure and Semen Composition
944
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...
944
01:41Spermatogenesis
102.0K
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...
102.0K