Featured Research

from universities, journals, and other organizations

Antimicrobials alter intestinal bacteria composition in swine, researchers find

Date:
September 4, 2012
Source:
University of Minnesota Academic Health Center
Summary:
Researchers, concerned about the use of antibiotics in animal production, have found that antimicrobial growth promoters administered to swine can alter the kind of bacteria present in the animal's intestinal track, resulting in an accelerated rate of growth and development in the animals.

Antimicrobial growth promoters administered to swine can alter the kind of bacteria present in the animal's intestinal track, resulting in an accelerated rate of growth and development in the animals, researchers have found.
Credit: janecat / Fotolia

Researchers from the University of Minnesota's College of Veterinary Medicine, concerned about the use of antibiotics in animal production, have found that antimicrobial growth promoters administered to swine can alter the kind of bacteria present in the animal's intestinal track, resulting in an accelerated rate of growth and development in the animals.

Related Articles


Antibiotics are routinely administered to swine to treat illness and to promote larger, leaner animals.

The results of the study, conducted by Richard Isaacson, Ph.D., microbiologist and professor within the University of Minnesota's College of Veterinary Medicine, alongside his U of M and University of Illinois research teams, were published in the Proceedings of the National Academy of Sciences.

To arrive at their results, the researchers tracked the effects of the antimicrobial Tylosin. The effects were observed in the feces of commercial pigs on two farms in southwestern Minnesota.

In young pigs receiving Tylosin, the intestinal bacterial composition changed and was similar to the composition naturally accredited to an older animal. These changes are linked to improved growth and stimulate an early maturation of the immune system.

"Bacterial composition drives the ability of animals to grow and thrive by contributing to digestion and metabolism," said Isaacson. "Because the bacteria in more mature animals break down growth-promoting components in food more efficiently, younger animals are able to achieve adult size and an adult-like metabolic rate more quickly."

According to Isaacson, the question has now shifted to whether or not researchers can use this new understanding to recreate this ideal-growth composition in swine produced for human consumption without antibiotic use.


Story Source:

The above story is based on materials provided by University of Minnesota Academic Health Center. Note: Materials may be edited for content and length.


Cite This Page:

University of Minnesota Academic Health Center. "Antimicrobials alter intestinal bacteria composition in swine, researchers find." ScienceDaily. ScienceDaily, 4 September 2012. <www.sciencedaily.com/releases/2012/09/120904150104.htm>.
University of Minnesota Academic Health Center. (2012, September 4). Antimicrobials alter intestinal bacteria composition in swine, researchers find. ScienceDaily. Retrieved March 2, 2015 from www.sciencedaily.com/releases/2012/09/120904150104.htm
University of Minnesota Academic Health Center. "Antimicrobials alter intestinal bacteria composition in swine, researchers find." ScienceDaily. www.sciencedaily.com/releases/2012/09/120904150104.htm (accessed March 2, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Monday, March 2, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

500 Snakes Surprise Construction Workers In Canada

500 Snakes Surprise Construction Workers In Canada

Newsy (Mar. 2, 2015) Hundreds of snakes, disturbed by a construction project, were relocated to a wildlife rescue association in Canada. Video provided by Newsy
Powered by NewsLook.com
Going Gluten-Free Could Get You A Tax Break

Going Gluten-Free Could Get You A Tax Break

Newsy (Mar. 2, 2015) If a doctor advises you to remove gluten from your diet, you could get a tax deduction on the amount you spend on gluten-free foods. Video provided by Newsy
Powered by NewsLook.com
Zookeepers Copy Animal Poses In Hilarious Viral Photos

Zookeepers Copy Animal Poses In Hilarious Viral Photos

Buzz60 (Mar. 2, 2015) Zookeepers at the Symbio Wildlife Park in Helensburgh, Australia decided to take some of their favorite animal photos and recreate them by posing just like the animals. Jen Markham (@jenmarkham) has the story. Video provided by Buzz60
Powered by NewsLook.com
Heavy Toll as Australian Farmers Struggle Through Drought

Heavy Toll as Australian Farmers Struggle Through Drought

AFP (Mar. 2, 2015) Mounting debts, despair and forced repossessions are taking a heavy toll on farmers in parts of Australia suffering from its worst drought in 100 years. Duration: 02:16 Video provided by AFP
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:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

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