World’s oldest viable semen — isolated from rams and stored for over 50 years in a laboratory
World’s most established practical semen – detached from rams and put away for more than 50 years in a research center – has been utilized to effectively impregnate ewes, researchers state.
The subsequent live birth rate was as high as that from sperm solidified for only a year, scientists said.
“This shows the reasonable reasonability of long haul solidified capacity of semen. The outcomes demonstrate that ripeness is kept up in spite of 50 years of solidified stockpiling in fluid nitrogen,” said Simon de Graaf from the University of Sydney.
“The sheep seem to show the body wrinkle that was normal in Merinos amidst a century ago, a component initially chose to expand skin surface zone and fleece yields,” he said.
“That style of Merino has since to a great extent tumbled from support as the folds prompted troubles in shearing and expanded danger of fly strike,” he said.
“We trust this is the most established practical put away semen of any species on the planet and unquestionably the most established sperm used to deliver posterity,” said Jessica Rickard, a post-doctoral individual at University of Sydney.
Aditi Mehta 