pcloudy.png
Wednesday July 17th, 2019 6:40PM

Scientists successfully transfer 1st test tube rhino embryo

By The Associated Press
Related Articles
  Contact Editor

BERLIN (AP) — Scientists in Europe said Tuesday they've successfully transferred a test tube rhino embryo back into a female whose eggs were fertilized in vitro, as part of an effort to save another nearly extinct sub-species of the giant horned mammal.

The procedure was performed last month on a southern white rhino at Chorzow zoo in Poland, said Thomas Hildebrandt of the Leibniz Institute for Zoo and Wildlife Research in Berlin.

Hildebrandt is part of BioRescue, an international team of scientists and conservationists trying to use IVF to save the rare northern white rhino.

Only two northern white rhinos — both females — are left. The last male northern white rhino, named Sudan, died in March 2018. Scientists had preserved frozen sperm samples from several males that they now hope to use to revive the species.

Scientists chose to test the IVF transfer on southern white rhinos, a closely related sub-species whose numbers have stabilized in the wild.

"This is the first positive proof that the entire procedure we've developed in theory can be successful," Hildebrandt told reporters in Berlin.

But time is running out.

The BioRescue team is waiting for permission from the Kenyan government to harvest eggs from the last two surviving female northern white rhinos, a mother and daughter called Najin and Fatu. They are unable to bear offspring themselves, so once the embryos are fertilized in the lab they would be implanted in a southern white rhino surrogate mother.

Kenya's ambassador in Germany, Joseph Magutt, said his country supports the effort, but didn't say how long it would take to clear the paperwork.

Hildebrandt cautioned that while ultrasound tests show the embryo transferred at Chorzow zoo has grown, it's smaller than expected and it remains to be seen whether it will implant in the mother's uterine lining and result in a pregnancy.

"There are a lot of technical problems that will be solved, but it will take time," said Cesare Galli, whose Italy-based company Avantea specializes in artificial reproduction of horses.

The German government announced Tuesday that it is supporting the project with 4 million euros ($4.6 million) funding.

In the meantime, others in the BioRescue team are working on ways to turn preserved skin cells from deceased rhinos into eggs or sperm, a procedure that's so far only been performed with mice.

Rhinos have long been under pressure from poachers because of their horns, and several sub-species are at risk of extinction. Conservationists say rhinos are important for the survival of many other species because of the role they play in landscaping their native habitat.

Earlier this week, five eastern black rhinos were transported from European zoos to Rwanda's Akagera National Park to help increase the genetic diversity of the rhino population there.

More broadly, a recent United Nations report warned that a million species are at risk of extinction in the coming decades, largely because of human activity.

  • Associated Categories: Associated Press (AP), AP National News, AP Online National News, Top General short headlines, AP World News, AP Business, AP Business - Industries, AP Business - Agriculture, AP Business - Poultry & Egg
© Copyright 2019 AccessWDUN.com
All rights reserved. This material may not be published, broadcast, rewritten, or redistributed without permission.
A few Hong Kong protesters apologize for disrupting lives
A small group of Hong Kong protesters has handed out flyers and bowed to passers-by to apologize for a demonstration that jammed the entrance of a government tax office
7:59AM ( 6 minutes ago )
Hong Kong protests signal alarm special freedoms fading
China promised that for 50 years after Britain gave up control of its last colony in 1997, this shimmering financial enclave would get to keep freedoms absent in the communist-ruled mainland that many here don't want to live without
7:54AM ( 12 minutes ago )
Acting Pentagon chief Esper on global stage amid Iran crisis
President Donald Trump's new acting defense secretary, Mark Esper, is due in Brussels to introduce himself to NATO allies and assure his counterparts in the region that the US military is in good hands
7:49AM ( 17 minutes ago )
Associated Press (AP)
After loss, Erdogan vows to listen to people's 'messages'
In his first public appearance since a crushing defeat in a rerun election for mayor of Istanbul, Turkish President Recep Tayyip Erdogan vowed to draw lessons in line with "the messages given by the people."
7:17AM ( 49 minutes ago )
The Latest: Russia says US drone shot down in Iran airspace
The Latest: Moscow official says Russian intelligence determined Iran shot down American drone over Iranian airspace
7:12AM ( 54 minutes ago )
Prince Harry, Meghan's home renovations cost taxpayers $3M
The Duke and Duchess of Sussex's home was renovated with 2.4 million pounds ($3.06 million) of taxpayers' money, royal accounts revealed Tuesday
6:57AM ( 1 hour ago )
AP World News
Global stocks sink ahead of Trump-Xi meeting at G-20 summit
Global stocks have sunk as traders look ahead to a meeting between the US and Chinese presidents amid hopes for talks on ending their trade fight
6:05AM ( 2 hours ago )
Cambodia charges 7, including Chinese, in building collapse
A court in Cambodia has charged 7 people, including 4 Chinese nationals, with crimes related to the collapse of a building under construction that killed 28 workers
4:22AM ( 3 hours ago )
Singapore probes drones at airport that disrupted 63 flights
Drones buzzing around Singapore's Changi Airport have caused 63 flights to be delayed or diverted, triggering an investigation and raising questions about the motives of the offenders
3:30AM ( 4 hours ago )
AP Business
Hidden oil spill: New study contradicts owner's claims
A new federally led study of oil seeping from a platform toppled off Louisiana 14½ years ago finds releases lower than other recent estimates
9:01PM ( 11 hours ago )
Jay Inslee: End government partnership with fossil fuels
Democratic presidential candidate Jay Inslee is proposing a clean break between the federal government and the fossil fuel industry, ending tax breaks for big oil and banning drilling on federal land
8:42PM ( 11 hours ago )
Pompeo in Mideast talks on building a coalition against Iran
US Secretary of State Mike Pompeo meets with Gulf Arab allies about building out a global coalition with Asian and European countries to counter Iran
8:33PM ( 11 hours ago )
AP Business - Industries
Millions of pigs culled as swine fever spreads through Asia
Millions of pigs culled as Asian nations scramble to contain highly contagious African swine fever, with more than 3.7 million pigs culled so far.
12:52AM ( 4 days ago )
Pig disease spreading in Asia as nations struggle to stop it
Asian nations are scrambling to contain highly contagious African swine fever, with more than 3.6 million pigs culled so far in an epidemic some fear is out of control
8:31PM ( 4 days ago )
Asian nations scramble to contain pig disease outbreaks
Asian nations are scrambling to contain the spread of the highly contagious African swine fever with Vietnam culling 2.6 million pigs and China reporting more than a million dead in an unprecedentedly huge epidemic
12:13PM ( 4 days ago )
AP Business - Agriculture
Not to be outdone, Tyson enters plant-based meat market
Tyson Foods enters the plant-based meat market and will begin selling nuggets made from pea protein at grocery stores this summer
7:09AM ( 1 week ago )
Tyson recalls chicken strips due to metal fears
Arkansas-based Tyson Foods is recalling more than 69,000 pounds of frozen, ready-to-eat chicken strips because they may be contaminated with pieces of metal
8:32AM ( 3 months ago )
US regulators clear path for genetically modified salmon
Genetically modified salmon have cleared another hurdle to be sold in the U.S., but could still face legal challenges
10:06PM ( 3 months ago )
AP Business - Poultry & Egg
A few Hong Kong protesters apologize for disrupting lives
A small group of Hong Kong protesters has handed out flyers and bowed to passers-by to apologize for a demonstration that jammed the entrance of a government tax office
7:59AM ( 6 minutes ago )
Hong Kong protests signal alarm special freedoms fading
China promised that for 50 years after Britain gave up control of its last colony in 1997, this shimmering financial enclave would get to keep freedoms absent in the communist-ruled mainland that many here don't want to live without
7:54AM ( 12 minutes ago )
Acting Pentagon chief Esper on global stage amid Iran crisis
President Donald Trump's new acting defense secretary, Mark Esper, is due in Brussels to introduce himself to NATO allies and assure his counterparts in the region that the US military is in good hands
7:49AM ( 17 minutes ago )
Boris Johnson again dodges questions over police visit
Conservative leadership candidate Boris Johnson has again refused to address questions on his private life, despite an ongoing clamor to face public scrutiny amid the fallout from a reported quarrel with his girlfriend that prompted a police visit
7:36AM ( 30 minutes ago )
Top Austrian court says Ukrainian oligarch can be sent to US
Austria's Supreme Court of Justice has ruled that a Ukrainian oligarch who prosecutors say had business ties to President Donald Trump's ex-campaign manager, Paul Manafort, can be extradited to the United States in a bribery case
7:33AM ( 33 minutes ago )