Featured Research

from universities, journals, and other organizations

Campylobacter bacteria in cattle manure may survive composting

Date:
March 9, 2010
Source:
American Society for Microbiology
Summary:
Contrary to popular belief, some disease causing bacteria may actually survive the composting process. Researchers report that campylobacter bacteria in cattle manure can survive composting and persist for long periods in the final product.

Contrary to popular belief, some disease causing bacteria may actually survive the composting process. Researchers from Agriculture and Agri-Food Canada report in the February 2010 issue of the journal Applied and Environmental Microbiology that campylobacter bacteria in cattle manure can survive composting and persist for long periods in the final product.

Related Articles


Campylobacter bacteria are the most common cause of gastroenteritis in the developed world. They are frequently shed by beef cattle in manure and although the impact on human health is undetermined there appears to be a link in areas such as Alberta, Canada where cases of human campylobacteriosis are extremely common and the cattle density is high.

Composting is described as a process in which organic matter in manure is stabilized through water loss, nutrient transmission, alteration of physical structure, elimination of weed seeds, and the inactivation of coliform bacteria, protozoan cysts and oocysts and viruses. Government agencies in both the United States and Canada recommend composting to reduce pathogen levels in manure.

In the study researchers examined the persistence of naturally occurring campylobacter bacteria in compost derived from manure of beef cattle that were administered antibiotics (AS700) and a control group that were not. Bacterial populations were the same in both groups, however, the temperature of the AS700 compost was more viable and not as high as that of the control group. Water content, total carbon, total nitrogen and electrical conductivity varied significantly between groups. Results showed that no reductions in the quantities of Campylobacter jejuni DNA were observed throughout the 10-month composting period. Further testing suggests that Campylobacter DNA examined from compost was extracted from viable cells.

"The findings of this study indicate that campylobacteria excreted in cattle feces persist for long periods in compost and call into question the common belief that these bacteria do not persist in manure," say the researchers.


Story Source:

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


Journal Reference:

  1. G.D. Inglis, T.A. McAllister, F.J. Larney, E. Topp. Prolonged Survival of Campylobacter Species in Bovine Manure Compost. Applied and Environmental Microbiology, 2010; 76 (4): 1110 DOI: 10.1128/AEM.01902-09

Cite This Page:

American Society for Microbiology. "Campylobacter bacteria in cattle manure may survive composting." ScienceDaily. ScienceDaily, 9 March 2010. <www.sciencedaily.com/releases/2010/02/100224171828.htm>.
American Society for Microbiology. (2010, March 9). Campylobacter bacteria in cattle manure may survive composting. ScienceDaily. Retrieved February 27, 2015 from www.sciencedaily.com/releases/2010/02/100224171828.htm
American Society for Microbiology. "Campylobacter bacteria in cattle manure may survive composting." ScienceDaily. www.sciencedaily.com/releases/2010/02/100224171828.htm (accessed February 27, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Friday, February 27, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Amazon Keeps Its Green Thanks To The Sahara Desert

The Amazon Keeps Its Green Thanks To The Sahara Desert

Newsy (Feb. 25, 2015) Satellite data shows the Amazon rainforest supports its lush flora with a little help from Sahara Desert dust. Video provided by Newsy
Powered by NewsLook.com
Mayor Says District of Columbia to Go Ahead With Pot Legalization

Mayor Says District of Columbia to Go Ahead With Pot Legalization

Reuters - News Video Online (Feb. 25, 2015) Washington&apos;s mayor says the District of Columbia will move forward with marijuana legalization, despite pushback from Congress. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Marijuana Nowhere Near As Deadly As Alcohol: Study

Marijuana Nowhere Near As Deadly As Alcohol: Study

Newsy (Feb. 25, 2015) A new study says marijuana is about 114 times less deadly than alcohol. Video provided by Newsy
Powered by NewsLook.com
Fox With Horrifying Injury Rescued and Released Back Into the Wild

Fox With Horrifying Injury Rescued and Released Back Into the Wild

RightThisMinute (Feb. 25, 2015) This wounded fox knew what she was doing when she wandered into the yard of a nature photographer. The photographer got "Scamp" immediately in the hands of Wildlife Aid and she was released back into the wild in no time. Video provided by RightThisMinute
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