Ejaculated boar spermatozoa displaying a rare multivesicular defect

Szabolcs Nagy, Tuire Tamminen, Magnus Andersson, Heriberto Rodriguez-Martinez

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2 Citations (Scopus)


Two cases of a previously unreported sperm defect appearing in boar studs in Finland are presented. Spermatozoa showed small particles scattered on their surface with a prevalence decreasing with boar age. Semen samples, either stained with eosin-nigrosin or examined with phase contrast optics on formaldehyde-fixed spermatozoa, revealed the presence of multiple particles attached to the surface of spermatozoa counted as dead cells at fixation. Transmission electron microscopy revealed these were multivesicular and multilamellar vesicles, built up by phospholipid membranes. The case is classified as a post-epididymal multivesicular sperm defect with a favorable prognosis.

Original languageEnglish
Article number21
JournalActa veterinaria Scandinavica
Issue number1
Publication statusPublished - márc. 27 2018


ASJC Scopus subject areas

  • veterinary(all)

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