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

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

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punktacja MEiN [2013 A]: 15

title:	Reproductive capacity of male bank voles (Myodes glareolus SCHREBER, 1780) : age-dependent changes in functional activity of epididymal sperm
author:	Kruczek Małgorzata , Styrna Józefa , Kapusta Joanna
journal title:	Belgian Journal of Zoology
volume:	143
issue:	2
date of publication :	2013
pages:	131-141
ISSN:	0777-6276
eISSN:	2295-0451
language:	English
journal language:	English
abstract in English:	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.
keywords in English:	age, bank vole, spermatozoa, reproductive tract, sperm activity
affiliation:	Wydział Biologii i Nauk o Ziemi : Instytut Nauk o Środowisku, Wydział Biologii i Nauk o Ziemi : Instytut Zoologii
type:	journal article
subtype:	academic paper

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