Sperm Storage in the Oviduct of the Japanese Greater Horseshoe Bat, Rhinolophus ferrumequinum nippon
1982; Kyushu University; Volume: 27; Issue: 1/2 Linguagem: Inglês
10.5109/23757
ISSN2433-488X
AutoresTakayuki Mōri, Yung Keun Oh, Teruaki Uchida,
Tópico(s)Ecology and biodiversity studies
ResumoIn the Japanese greater horseshoe bat, Kizi~~hph~~~ fcrruwzequim~~ nippm, copulation took place in mid-or late October and ovulation was induced early in April.The principal site of sperm storage was the caudal isthmus of the oviduct, lined with non-ciliated cpithelium, although moderate or small numbers of spermatozoa were found also in the intramural part of the uterotubal junction.The intact spermatozoa in contact with the microvilli of epithelial cells in folds in the storage sites appeared normal, while some degenerated spermatozoa were eliminated by extensive epithelial engulfment throughout the period of storage; leucocytic phagocytosis rarely occurred and was confined to the period just before or after ovulation.
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