Reproductive capacity of male bank voles (Myodes glareolus SCHREBER, 1780) : age-dependent changes in functional activity of epididymal sperm
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dc.type
JournalArticle
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dc.description.physical
131-141
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dc.abstract.en
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.
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dc.subject.en
age
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dc.subject.en
bank vole
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dc.subject.en
spermatozoa
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dc.subject.en
reproductive tract
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dc.subject.en
sperm activity
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dc.description.volume
143
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dc.description.number
2
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dc.identifier.eissn
2295-0451
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dc.title.journal
Belgian Journal of Zoology
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dc.language.container
eng
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dc.affiliation
Wydział Biologii i Nauk o Ziemi : Instytut Nauk o Środowisku
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dc.affiliation
Wydział Biologii i Nauk o Ziemi : Instytut Zoologii