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Tytuł pozycji:

Hereditary sterilizing short-tail sperm defect in Finnish Yorkshire boars.

Tytuł :
Hereditary sterilizing short-tail sperm defect in Finnish Yorkshire boars.
Autorzy :
Sukura A; Department of Basic Veterinary Science, Faculty of Veterinary Medicine, University of Helsinki, Finland.
Mäkipaää R
Vierula M
Rodriguez-Martinez H
Sundbäck P
Andersson M
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Źródło :
Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc [J Vet Diagn Invest] 2002 Sep; Vol. 14 (5), pp. 382-8.
Typ publikacji :
Journal Article
Język :
English
Imprint Name(s) :
Publication: 2011-: Thousand Oaks, CA : Sage
Original Publication: 1989-2004 : Columbia, MO : American Association of Veterinary Laboratory Diagnosticians
MeSH Terms :
Infertility, Male/*pathology
Infertility, Male/*veterinary
Spermatozoa/*abnormalities
Swine Diseases/*pathology
Animals ; Case-Control Studies ; Finland ; Genetic Diseases, Inborn/pathology ; Genetic Diseases, Inborn/veterinary ; Male ; Seminiferous Epithelium/cytology ; Seminiferous Epithelium/ultrastructure ; Sertoli Cells/cytology ; Sertoli Cells/ultrastructure ; Spermatogenesis ; Spermatozoa/pathology ; Spermatozoa/ultrastructure ; Swine ; Testis/cytology ; Testis/pathology ; Testis/ultrastructure
Entry Date(s) :
Date Created: 20020926 Date Completed: 20030528 Latest Revision: 20190522
Update Code :
20210210
DOI :
10.1177/104063870201400504
PMID :
12296389
Czasopismo naukowe
A new infertility syndrome has recently been described in Finnish Yorkshire boars. Typical for the syndrome is total akinesia and severe tail malformation of the spermatozoa. Morphometric analysis was performed on semen smears from 20 affected and 18 control boars and on testicular tissue sections from 5 affected and 4 control boars. Semen morphometry revealed that, in affected boars, the length of the sperm tails was only 33% of that of the controls (15.4 microm vs. 47.0 microm, P < 0.0001). Typical for the spermatozoa of affected boars was also an abundant frequency of proximal cytoplasmic droplets (72.4% vs. 6.9%, P < 0.0001), whereas no major sperm-head abnormalities were recorded. In the testicular tissue samples, viewed at light microscopic level, the volume densities of seminiferous tubules or interstitium did not differ. The most characteristic change in the seminiferous epithelium of the affected boars was a reduced number of elongated spermatids. Densities of Sertoli cells and Leydig cells between affected and control boars did not differ. The ultrastructure of testicular tissue from affected boars showed severe alterations in the assembly of the midpiece and tail of the spermatozoa. As well, a typical finding in the seminiferous epithelium of affected boars was conspicuous deposition of lipid droplets. The pathogenesis of this syndrome severely affects spermiogenesis and motility. Spermatozoa have malformed, short tails, which never become motile. This syndrome is not manifested in the structure or function of other ciliated cells in the affected animals.

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