Reproductive capacity of male bank voles (Myodes glareolus Schreber, 1780) – age-dependent changes in functional activity of epididymal sperm

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-03-13 DOI:10.26496/bjz.2013.129

M. Kruczek, J. Styrna, J. Kapusta

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引用次数: 4

Abstract

The influence of age on male bank voles’ reproductive tract development, epididymal sperm quantity and functional activity was investigated. Experiments were carried out on male bank voles aged 1.5 to 15 months (n=10 each in 8 age groups). The developmental stage of the reproductive tract was assessed by the weight of testes, seminal vesicles and coagulation glands. In each age group the number of epididymal sperm and their functional activity were examined. Epididymal sperm functional activity was assessed by motility, viability, maturity, head morphology and integrity of the sperm tail membrane. Ageing males were heavier than pre-pubertal and mature ones. Male age also affected the testes, seminal vesicles and coagulation gland development. The heaviest accessory sex glands were noted in 3-month-old males and the lightest in pre-pubertal (1.5-month-old) and older (12- and 15-month-old) males. Sperm counts were significantly higher in 3-, 4- and 5-month-old males than in pre-pubertal and old males. Generally, adult males aged 3- and 4- months, produced sperm of better functional activity. In conclusion, the best male reproductive capacity is found in bank voles of 3 to 4 months of age.

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雄性银行田鼠（Myodes glareolus Schreber，1780 年）的生殖能力--附睾精子功能活动随年龄的变化而变化

研究了年龄对雄性银行田鼠生殖道发育、附睾精子数量和功能活动的影响。实验对象为 1.5 至 15 个月大的雄性银行田鼠（8 个年龄组，每组 10 只）。通过睾丸、精囊和凝固腺的重量来评估生殖道的发育阶段。对每个年龄组的附睾精子数量及其功能活性进行了检测。附睾精子的功能活性通过运动性、活力、成熟度、头部形态和精子尾膜的完整性进行评估。衰老的雄性比青春期前和成熟的雄性更重。雄性的年龄也会影响睾丸、精囊和凝固腺的发育。3 个月大的雄性附属性腺最重，而青春期前（1.5 个月大）和较大（12 和 15 个月大）的雄性附属性腺最轻。3 个月、4 个月和 5 个月大的雄性动物的精子数量明显高于青春期前的雄性动物和年龄较大的雄性动物。一般来说，3 个月和 4 个月大的成年雄性产生的精子具有更好的功能活性。总之，3至4月龄的银行田鼠雄性繁殖能力最强。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.