Featured Research

from universities, journals, and other organizations

Sheep Thriving In Feeding Trial Of Genetically Modified Lupins

Date:
January 1, 2001
Source:
CSIRO Australia
Summary:
Increased wool growth and live weight gain in Merino sheep are the results of a recent Australian feeding trial using genetically modified lupins. The CSIRO trial explored nutritional benefits of lupin seeds genetically modified to incorporate a sunflower gene that stimulates the production of a highly nutritious protein.

Increased wool growth and live weight gain in Merino sheep are the results of a recent Australian feeding trial using genetically modified lupins.

The CSIRO trial explored nutritional benefits of lupin seeds genetically modified to incorporate a sunflower gene that stimulates the production of a highly nutritious protein.

CSIRO Livestock Industries' Dr Colin White says the feeding trial resulted in an eight per cent increase in wool growth and a seven per cent increase in live weight gain in the sheep fed the modified lupins. All sheep in the trial maintained good health and are doing well.

"The results have the potential to be converted into an additional 160 tonnes of wool per year. In other words farmers could produce more wool from the same number of sheep, or alternatively they could produce the same amount of meat or wool with fewer sheep and lower cost," says Dr White.

The GMAC-approved trial was conducted over six weeks with 80 sheep that were divided equally into two groups and fed a cereal-hay based diet containing either modified or unmodified lupin seed.

CSIRO Plant Industry scientist, Dr TJ Higgins, says this research potentially offers a valuable boost to Australian wool by reducing costs, increasing profits and making production more efficient.

The lupin is the major legume grain used on-farm as supplementary feed for sheep during the summer drought, with approximately 200,000 tonnes of the 1.2 million tonnes produced annually in South-western Australia used for this purpose.

"Wool and muscle growth has a high demand for sulphur amino acids, which are absorbed through the sheep's small intestine," says Dr Higgins, "but the sheep's first stomach, the rumen, tends to break down up to 40% of these essential nutrients before they reach the intestine."

"We have modified the lupin to contain a sunflower gene that produces a protein that is both rich in sulfur amino acids and stable in the sheep's rumen. This protein acts as an efficient package for delivering the extra sulfur amino acids where they are needed to achieve better growth.

"We are pleased with the results which are a culmination of over ten years of research, including a stringent environmental safety assessment process."

With successful results from the lupin trials, the researchers are currently working towards similar positive results with subterranean clover, an important pasture plant for the wool industry.

All CSIRO gene technology research is carried out according to the strict guidelines of the Federal Government's Genetic Manipulation Advisory Committee (GMAC).

The research is supported by grain-growers and the Federal Government through the Grains Research and Development Corporation (GRDC) and by the Centre for Legumes in Mediterranean Agriculture (CLIMA).

The findings will appear in the international Journal of Science of Food and Agriculture.


Story Source:

The above story is based on materials provided by CSIRO Australia. Note: Materials may be edited for content and length.


Cite This Page:

CSIRO Australia. "Sheep Thriving In Feeding Trial Of Genetically Modified Lupins." ScienceDaily. ScienceDaily, 1 January 2001. <www.sciencedaily.com/releases/2000/11/001122221625.htm>.
CSIRO Australia. (2001, January 1). Sheep Thriving In Feeding Trial Of Genetically Modified Lupins. ScienceDaily. Retrieved August 30, 2014 from www.sciencedaily.com/releases/2000/11/001122221625.htm
CSIRO Australia. "Sheep Thriving In Feeding Trial Of Genetically Modified Lupins." ScienceDaily. www.sciencedaily.com/releases/2000/11/001122221625.htm (accessed August 30, 2014).

Share This




More Plants & Animals News

Saturday, August 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Experimental Ebola Drug ZMapp Cures Lab Monkeys Of Disease

Experimental Ebola Drug ZMapp Cures Lab Monkeys Of Disease

Newsy (Aug. 29, 2014) In a new study, a promising experimental treatment for Ebola managed to cure a group of infected macaque monkeys. Video provided by Newsy
Powered by NewsLook.com
Killer Amoeba Found in Louisiana Water System

Killer Amoeba Found in Louisiana Water System

AP (Aug. 28, 2014) State health officials say testing has confirmed the presence of a killer amoeba in a water system serving three St. John the Baptist Parish towns. (Aug. 28) Video provided by AP
Powered by NewsLook.com
Raw: Australian Sheep Gets Long Overdue Haircut

Raw: Australian Sheep Gets Long Overdue Haircut

AP (Aug. 28, 2014) Hoping to break the record for world's wooliest, Shaun the sheep came up 10 pounds shy with his fleece weighing over 50 pounds after being shorn for the first time in years. (Aug. 28) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins