Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

CSIRO brings home the bacon

12.01.2004


A team of CSIRO Livestock Industries researchers are helping to make pigs healthier and happier, while fattening the bottom line.



Dr David Strom leads a team at CSIRO Livestock Industries’ Australian Animal Health Laboratory (AAHL), detecting and modulating immune responses in pigs.

"In Australia 20 per cent of fresh meat production is pork," Dr Strom says. "World-wide there is more pork produced than any other livestock meat - accounting for more than 40 per cent of the world market.


"While the potential value of pig meat is substantial, keeping pigs healthy is costly. Pigs tend to be raised intensively and are subject to things like dust, bacteria and ’pig-to-pig’ tensions. This can affect the pig’s ability to fight disease and grow."

By learning more about the pig immune system and modulating its responses, antibiotics and chemicals currently used to control disease may be reduced or replaced with the added benefit of improving health and increasing resistance to disease. Dr Strom’s team is studying about 40 natural immune-system regulators - molecules called cytokines.

"Trials under commercial conditions showed that cytokines could be natural alternatives to antibiotics as pigs given cytokines gained equal to or more weight than those pigs provided in-feed antibiotics. In another experiment, pigs given cytokines gained another ten per cent in weight over those given antibiotics," Dr Strom says.

"In various trials with cytokines, fewer pigs showed signs of bacterial infection and less weight was lost at weaning, which is a time of stress and increased disease exposure."

Preliminary evidence also suggests some cytokines can enhance the efficacy of vaccines and allow lower doses of vaccines to be used. Other cytokines can reduce harmful immune responses to disease, such as inflammation. The effectiveness of cytokines against the internal worm parasite Ascaris suum is also being investigated.

"Ascaris worms are a huge problem when pigs are kept on dirt or straw. Each infected pig can excrete 300,000 to one million eggs in their faeces, quickly passing the parasite onto its herd mates," Dr Strom says

Learning about innate immune molecules called ’Toll-like receptors’ may also improve pig health. These receptors recognise infectious organisms and signal the immune system to attack.

Dr Strom says the team hopes to control the pigs’ response to viruses and bacteria so that nutrients are not completely focused on fighting disease, but also allow the animals to continue growing.

More information:

Dr David Strom, CSIRO Livestock Industries , +61 3 5227 5426
Email: david.strom@csiro.au

Media assistance:
Judith Maunders, CSIRO Livestock Industries, +613 5227 5426

Bill Stephens | CSIRO
Further information:
http://www.csiro.au/index.asp?type=mediaRelease&id=prbacon2

More articles from Agricultural and Forestry Science:

nachricht Kakao in Monokultur verträgt Trockenheit besser als Kakao in Mischsystemen
18.09.2017 | Georg-August-Universität Göttingen

nachricht Ultrasound sensors make forage harvesters more reliable
28.08.2017 | Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP

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: The pyrenoid is a carbon-fixing liquid droplet

Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.

A warming planet

Im Focus: Highly precise wiring in the Cerebral Cortex

Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.

The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

Im Focus: Quantum Sensors Decipher Magnetic Ordering in a New Semiconducting Material

For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.

Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Rainbow colors reveal cell history: Uncovering β-cell heterogeneity

22.09.2017 | Life Sciences

Penn first in world to treat patient with new radiation technology

22.09.2017 | Medical Engineering

Calculating quietness

22.09.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>