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首页> 外文期刊>Belgian Journal of Zoology >Reproductive capacity of male bank voles (Myodes glareolus Schreber, 1780) - age-dependent changes in functional activity of epididymal sperm
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Reproductive capacity of male bank voles (Myodes glareolus Schreber, 1780) - age-dependent changes in functional activity of epididymal sperm

机译：雄性河岸田鼠的生殖能力（Myodes glareolus Schreber，1780）-附睾精子功能活动的年龄依赖性变化

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摘要

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 prepubertal (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.
机译：研究了年龄对雄性河岸田鼠生殖道发育，附睾精子数量和功能活动的影响。在年龄为1.5到15个月的雄性田鼠身上进行了实验（8个年龄组中的n = 10）。通过睾丸，精囊和凝血腺的重量来评估生殖道的发育阶段。在每个年龄组中，检查附睾精子的数量及其功能活动。附睾精子功能活动通过运动，生存能力，成熟度，头部形态和精子尾膜的完整性进行评估。衰老的男性比青春期前和成熟的男性重。男性年龄也影响睾丸，精囊和凝血腺的发育。在3个月大的男性中发现了最重的附属性腺，而青春期前（1.5个月大）和年龄较大（12和15个月大）的男性最轻。 3、4和5个月大的男性精子数量明显高于青春期前和男性。通常，3个月和4个月大的成年男性产生的精子具有更好的功能活动。总之，在3到4个月大的银行田鼠中发现最佳的男性生殖能力。

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