Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

The inside scoop on semen

09.03.2007
Research at the Norwegian School of Veterinary Science enables more reliable evaluation of semen quality and greater storage potential.

Some 90% of all births of cattle and pigs in Norway result from artificial insemination with frozen, or fresh and stored semen. Highly fertile semen fetches a very high price, and improved methods of evaluation of semen quality are therefore desirable for the Norwegian breeding and husbandry organisations Geno (cattle) and Norsvin (pigs).

For her Ph. D. degree, Karin Waterhouse evaluated semen quality in bulls and boars using a newly-developed method called flow cytometry. The introduction of this technology now means that Norwegian pig breeders can store semen at room temperature for up to five days prior to insemination. Previously, the recommended maximum storage time for boar semen was three days. This breakthrough has led to more effective transportation and distribution of boar semen. Less is wasted and production of semen on Sundays is not longer necessary.

The fertility of Norwegian Red (NRF) breeding bulls is very good in comparison to other cattle breeds in Europe and the USA. This good fertility makes it difficult to find a relationship between semen quality and fertility. Waterhouse has succeeded in finding a relationship between sperm DNA quality and fertilising potential of bull semen, meaning that in the future, sperm DNA quality can be used as a basis to reject semen doses and exclude bulls with inferior fertilising potential. The work that Waterhouse has carried out will help maintain the high fertility of NRF breeding bulls and means that farmers can continue to achieve a high level of pregnancy in their cows after artificial insemination.

Both Geno and Norsvin are ISO-certified semen production units, and the use of flow cytometry for evaluation of semen quality will allow for improved documentation of the semen quality of Norwegian breeding boars and bulls. Geno and Norsvin have recently increased their export of semen, and the improved documentation will be a valuable factor in competition with other international breeding and semen companies.

Hege Robberstad | alfa
Further information:
http://www.veths.no/templates/Page.aspx?id=8797

More articles from Agricultural and Forestry Science:

nachricht Fighting a destructive crop disease with mathematics
21.06.2017 | University of Cambridge

nachricht Unusual soybean coloration sheds a light on gene silencing
20.06.2017 | University of Illinois College of Agricultural, Consumer and Environmental Sciences

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

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

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>