Relationship between fertility of bovine semen and In vitro induction of acrosome reactions by heparin

Relationship between fertility of bovine semen and In vitro induction of acrosome reactions by heparin

This study was designed to relate nonreturn rates of bulls in a commercial artificial insemination programme to the in vitro induction of acrosome reactions by the glycosaminoglycan, heparin. Semen was collected from twelve 1 to 2 year-old Holstein bulls. Washed spermatozoa from 4 to 6 ejaculates we...

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Veröffentlicht in:Theriogenology 1992-07, Vol.38 (1), p.11-20
Hauptverfasser: Whitfield, C.H., Parkinson, T.J.
Format: Artikel
Sprache:eng
Schlagworte:
ACROSOMA
ACROSOME
acrosome reaction
bull
EXPERIMENTACION IN VITRO
EXPERIMENTATION IN VITRO
FERTILIDAD
FERTILITE
fertility
GLICOSAMINOGLICANOS
GLYCOSAMINOGLYCANE
HEPARINA
HEPARINE
INSEMINACION ARTIFICIAL
INSEMINATION ARTIFICIELLE
MACHO
MALE
SEMEN
SPERME
TAUREAU
TORO
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Zusammenfassung:This study was designed to relate nonreturn rates of bulls in a commercial artificial insemination programme to the in vitro induction of acrosome reactions by the glycosaminoglycan, heparin. Semen was collected from twelve 1 to 2 year-old Holstein bulls. Washed spermatozoa from 4 to 6 ejaculates were incubated for 6 hours with 10 μg/ml heparin. Acrosome reactions were determined by differential interference microscopy. The percentage increase in acrosome reaction in heparin-treated compared to control samples was significantly correlated to the 90-day nonreturn rate of the bulls (r = 0.86; P
ISSN:0093-691X
1879-3231
DOI:10.1016/0093-691X(92)90214-C