Featured Research

from universities, journals, and other organizations

Hops Extract May Reduce Clostridium In Chickens

Date:
November 20, 2008
Source:
USDA/Agricultural Research Service
Summary:
Hops contain substances that control pathogenic bacteria in the intestines of chickens, Agricultural Research Service (ARS) scientists and cooperators have reported.

A compound in hops called lupulone was found to be possible replacement for low levels of antibiotics as a way of controlling some pathogenic bacteria in chickens.
Credit: Photo by Stephen Ausmus

Hops contain substances that control pathogenic bacteria in the intestines of chickens, Agricultural Research Service (ARS) scientists and cooperators have reported.

Certain bacteria in the intestines of chickens not only can cause contamination of meat during processing, but also may pose major production losses by causing disease in the broiler chicken.

Currently, poultry producers use sub-therapeutic amounts of antibiotics in poultry feed as growth promoters and to control bacterial pathogens or parasites. However, bacteria can become resistant to the antibiotics, so ARS scientists are looking for alternatives.

The hop plant (Humulus lupulus) contains bitter acids known to be potent antimicrobials. One of these compounds, lupulone, was thought to control levels of the disease-causing agent Clostridium perfringens in chickens.

ARS scientists, working under a cooperative research agreement with hops producer Hopsteiner in Yakima, Wash., examined the effect of feeding different concentrations of lupulone to broiler chickens to determine the compound's impact on Clostridium populations in the intestinal tracts of birds inoculated with C. perfringens.

A research team led by microbiologist Gregory Siragusa, formerly of the ARS Poultry Microbiological Safety Research Unit in Athens, Ga., in collaboration with Gerhard Haas of Fairleigh Dickinson University in New Jersey, delivered different concentrations of lupulone via water to chickens inoculated with C. perfringens. After 22 days—the timeframe associated with clostridial disease in broiler chickens—C. perfringens counts were significantly reduced in the lupulone-treated group compared to another group of chickens that did not receive the lupulone treatment. The reductions ranged from 30 to 50 percent.

According to the team, the potential for lupulone as an antibiotic alternative in poultry rearing is feasible based on these results.

This research was published in the Journal of Antimicrobial Chemotherapy.


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. "Hops Extract May Reduce Clostridium In Chickens." ScienceDaily. ScienceDaily, 20 November 2008. <www.sciencedaily.com/releases/2008/10/081031214527.htm>.
USDA/Agricultural Research Service. (2008, November 20). Hops Extract May Reduce Clostridium In Chickens. ScienceDaily. Retrieved July 30, 2014 from www.sciencedaily.com/releases/2008/10/081031214527.htm
USDA/Agricultural Research Service. "Hops Extract May Reduce Clostridium In Chickens." ScienceDaily. www.sciencedaily.com/releases/2008/10/081031214527.htm (accessed July 30, 2014).

Share This




More Plants & Animals News

Wednesday, July 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Raw: Thousands Flocking to German Crop Circle

Raw: Thousands Flocking to German Crop Circle

AP (July 30, 2014) Thousands of people are trekking to a Bavarian farmer's field to check out a mysterious set of crop circles. (July 30) Video provided by AP
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Xtreme Eating: Your Daily Caloric Intake All On One Plate

Xtreme Eating: Your Daily Caloric Intake All On One Plate

Newsy (July 30, 2014) The Center for Science in the Public Interest released its 2014 list of single meals with whopping calorie counts. Video provided by Newsy
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