Featured Research

from universities, journals, and other organizations

Minimal Composting Of Beef Cattle Manure Greatly Reduces Antibiotic Levels

Date:
October 14, 2008
Source:
USDA/Agricultural Research Service
Summary:
Composting beef cattle manure, even with minimal management, can significantly reduce the concentrations of antibiotics in the manure. Scientists found that composting manure from beef cattle could reduce concentrations of antibiotics by more than 99 percent.

ARS scientists have found composting beef manure can significantly reduce antibiotics and pathogens.
Credit: Photo courtesy of Natural Resources Conservation Service

Composting beef cattle manure, even with minimal management, can significantly reduce the concentrations of antibiotics in the manure, according to an Agricultural Research Service (ARS) pilot study. The scientists found that composting manure from beef cattle could reduce concentrations of antibiotics by more than 99 percent.

Related Articles


Osman Arikan, a visiting scientist from Istanbul Technical University, and ARS microbiologists Patricia Millner and Walter Mulbry at the Henry A. Wallace Beltsville Agricultural Research Center, in Beltsville, Md., looked at varying levels of manure management, including plain manure piles, and manure piles with straw added. They found that adding straw to manure piles tends to result in higher temperatures that speed up the process of degrading antibiotics as well as pathogens.

The use of antibiotics as therapeutic agents is widespread in the animal production industry. Scientific studies have shown that, depending on the antibiotic and type of animal, between 20 to 75 percent of antibiotics administered to animals is excreted via urine and feces. So it's important that these residues are broken down during composting to prevent their release into the environment.

Arikan, Millner, and Mulbry evaluated the efficacy of a series of minimal-management options for on-farm manure composting to reduce concentrations of the antibiotics oxytetracycline and chlorotetracycline. The treatments were designed to span a range of management options from simply piling up the manure to mixing it with an equal volume of straw (to increase aeration within the compost pile) and adding insulating layers of straw.

Results show that manure-only pile temperatures and the concentrations of antibiotics were significantly influenced by treatment over a 28-day period. Concentrations of oxytetracycline and chlorotetracycline incubated at ambient temperature decreased 75 percent and 90 percent, respectively.

Oxytetracycline and chlorotetracycline concentrations in samples incubated for 28 days within an amended manure pile decreased 91 percent and 99 percent, respectively. Although manure piles amended with straw attained higher temperatures and more rapid decreases in antibiotic concentrations, there is currently no compelling justification for producers to expend additional resources needed to achieve the more rapid rates of antibiotic removal. Pathogen reduction in manure piles requires careful and consistent management to ensure all parts of the pile are treated.


Story Source:

The above story is based on materials provided by USDA/Agricultural Research Service. Note: Materials may be edited for content and length.


Cite This Page:

USDA/Agricultural Research Service. "Minimal Composting Of Beef Cattle Manure Greatly Reduces Antibiotic Levels." ScienceDaily. ScienceDaily, 14 October 2008. <www.sciencedaily.com/releases/2008/10/081013200632.htm>.
USDA/Agricultural Research Service. (2008, October 14). Minimal Composting Of Beef Cattle Manure Greatly Reduces Antibiotic Levels. ScienceDaily. Retrieved December 22, 2014 from www.sciencedaily.com/releases/2008/10/081013200632.htm
USDA/Agricultural Research Service. "Minimal Composting Of Beef Cattle Manure Greatly Reduces Antibiotic Levels." ScienceDaily. www.sciencedaily.com/releases/2008/10/081013200632.htm (accessed December 22, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Monday, December 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Christmas Kissing Good for Health

Christmas Kissing Good for Health

Reuters - Innovations Video Online (Dec. 22, 2014) Scientists in Amsterdam say couples transfer tens of millions of microbes when they kiss, encouraging healthy exposure to bacteria. Suzannah Butcher reports. Video provided by Reuters
Powered by NewsLook.com
Brain-Dwelling Tapeworm Reveals Genetic Secrets

Brain-Dwelling Tapeworm Reveals Genetic Secrets

Reuters - Innovations Video Online (Dec. 22, 2014) Cambridge scientists have unravelled the genetic code of a rare tapeworm that lived inside a patient's brain for at least four year. Researchers hope it will present new opportunities to diagnose and treat this invasive parasite. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Earthworms Provide Cancer-Fighting Bacteria

Earthworms Provide Cancer-Fighting Bacteria

Reuters - Innovations Video Online (Dec. 21, 2014) Polish scientists isolate bacteria from earthworm intestines which they say may be used in antibiotics and cancer treatments. Suzannah Butcher reports. Video provided by Reuters
Powered by NewsLook.com
Existing Chemical Compounds Could Revive Failing Antibiotics, Says Danish Scientist

Existing Chemical Compounds Could Revive Failing Antibiotics, Says Danish Scientist

Reuters - Innovations Video Online (Dec. 21, 2014) A team of scientists led by Danish chemist Jorn Christensen says they have isolated two chemical compounds within an existing antipsychotic medication that could be used to help a range of failing antibiotics work against killer bacterial infections, such as Tuberculosis. Jim Drury went to meet him. Video provided by Reuters
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