Cooled Storage Induces Capacitation-like Changes in Equine Spermatozoa

Artificial insemination with a single dose of semen cooled-stored for 24-36h yields highest pregnancy rates (PR) when performed24h before ovulation are common. Semen ageing in vitro or in vivo may lead to capacitation-like changes (CLC) in spermatozoa, thereby presumably depleting the population of spermatozoa available for fertilisation. The aims of this study were to 1) assess CLC in spermatozoa during cooled storage and 2) compare PR when semen is either cooled-stored for 48h (ageing in vitro) and inseminated shortly before ovulation (
Source: Journal of Equine Veterinary Science - Category: Veterinary Research Authors: Source Type: research