Saturday , July 24 2021

Nordic White Rhinin: New Expectations for IVF Salvage



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Sudan was his last

A new study is hoping to save one of the last animals of this kind.

The victim of the communion, the number of northern white rhino populations has been reduced to only two women who are unable to grow.

DNA evidence suggests that rhino is more closely tied than previously thought by its southern white cousin.

Scientists say it's possible that a positive outcome will produce rhino hybrids using IVF, although this option is considered the last resort.

White rhino was divided into two divided populations that lived in northern and southern Africa about a million years ago.

But extensive DNA analysis from live rhinos and museum samples shows the northern and southern populations that have been mixed and raised sometimes after that date, perhaps just recently, 14,000 years ago.

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Najin (L) and Fatu: only two remaining North white rhinos

"Despite the fact that they began to differ from one million years ago, we show that during this period they have exchanged genes, perhaps just recently, as the last ice age when the African savannah expanded and renewed the two populations," led researcher Dr. Michael Bruford from the University of Cardiff told BBC News.

"So, if they've recently exchanged genes, that might mean they could do it now."

He said cross-breeding using artificial supplements could work to save the North White Rhino from its current difficulty.

How much north and south white rhinos remain?

The North White Rhinel was once spread across the entire African continent, including Uganda, South Sudan, the Democratic Republic of the Congo and Chad.

Unfair hunting to meet the demand for a rhino horn caused a sharp fall in the wild, and in 2008 rhino species were eradicated in the wild.

This year in Sudan, the last men of the northern white rhino, died at the age of 45 years.

There are two women left – his daughter and granddaughter, who live in Ol Pyeet Conservation in Kenya, where they are protected around the clock. However, both have their own health problems and they can not naturally divorce.

Southern white rhino is found in Southern Africa, including South Africa, Namibia and Zimbabwe.

About a century ago, numbers fell to a few hundred people, but conservation efforts recovered. Approximately 20,000 exist in protected areas and private game reserves.

What should I do to save the North White Rhino?

The survival of the Northern White Rhinines is bleak and based on the latest ditches that were discussed for IVF conservation and cloning.

There is still an invaluable way of storing frozen semen from the men's northern white rhinos, but nature conservation experts are divided on how to use it.

In July, one team took eggs from the women's southern rhinos – some 20,000 in the wild – and fertilized them with frozen semen from male northern white rhino to create hybrid embryos.

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Southern White Rhino in the Londoloz Reserve in South Africa

The new study suggests that this type of approach might pay off, given that these two rhinos are more genetically thought than once thought.

"We think it improves the chances," said Professor Brufords. "It's hard to predict what could happen if we cross two subspecies, but given the current choice of the North White Rhino, it becomes a more viable solution if other approaches fail."

Other options are to use frozen tissue from the wider North White Rhinos to create stem cells that can develop in eggs and semen.

This will prevent the dilution of the gene pool, but it is more difficult to achieve it.

United Kingdom, South African, Czech, Austrian, German and US researchers have published the Proceedings of the Journal of the Royal Society of London.

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