Ecology & Zoology

World's Oldest Semen As Viable As Sperm From Last Year

Semen stored in a laboratory in Sydney has been defrosted and successfully used to impregnate 34 Merino ewes, with the resulting live birth rate as high sperm frozen for just 12 months. The authors believe the sperm used is the oldest viable stored semen ...

Article - News Staff - Mar 17 2019 - 6:39pm