Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

First Live Rhinoceros Birth from Frozen-Thawed Semen

13.11.2008
Landmark Artificial Insemination Holds Great Promise to Ensure Future of These Megaherbivores

There may be less than 20,000 rhinoceros in the world, with one species perhaps already extinct and another with possibly only four animals remaining in the wild. As the populations of these animals age and become infirm, successful breeding becomes increasingly difficult.

In an article scheduled for publication in Theriogenology, An International Journal of Animal Reproduction, researchers from the Leibniz Institute for Zoo and Wildlife Research, Berlin, Zoo Budapest and the University of Veterinary Medicine, Vienna, report on the first live birth of a rhinoceros resulting from artificial insemination (AI) with frozen and thawed semen.

Using semen collected from a 35-36 year-old Southern white rhinoceros, frozen for 2 to 3 years and then thawed, a 30 year old female rhinoceros was artificially inseminated in two attempts. The first failed, but the second resulted in pregnancy and the birth of a healthy offspring. At the time of conception, the female was housed at the Budapest Zoo in Hungary and the male donor in Colchester Zoo in the United Kingdom.

Techniques for AI in rhinoceros have improved in recent years and the first live birth by AI occurred in 2007. However, that instance used fresh semen from a male rhinoceros in the same zoo, limiting the widespread use of the technique. By demonstrating that frozen semen could be thawed and used to successfully inseminate a female at a remote location, the researchers have opened a new avenue to the preservation of endangered species. Semen samples can be collected and preserved from both wild and captive populations to maintain a genome resource bank and to boost reproduction in these megaherbivores.

Writing in the article, Dr. Robert Hermes, Med. Vet., and colleagues state, “This achievement joins a fairly short list of fewer than 30 wildlife species, most of which are closely related to domestic species, in which artificial insemination with frozen-thawed semen has been successful in producing live offspring. The use of frozen-thawed semen holds great potential as a means to overcome the crisis most captive and wild rhinoceros populations are facing in various ways.”

Megan Curran | alfa
Further information:
http://www.elsevier.com

More articles from Life Sciences:

nachricht More genes are active in high-performance maize
19.01.2018 | Rheinische Friedrich-Wilhelms-Universität Bonn

nachricht How plants see light
19.01.2018 | Albert-Ludwigs-Universität Freiburg im Breisgau

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Artificial agent designs quantum experiments

On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.

We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

Im Focus: Room-temperature multiferroic thin films and their properties

Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.

Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

Let the good tubes roll

19.01.2018 | Materials Sciences

How cancer metastasis happens: Researchers reveal a key mechanism

19.01.2018 | Health and Medicine

Meteoritic stardust unlocks timing of supernova dust formation

19.01.2018 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>