Navigation Links
Hops helps reduce ammonia produced by cattle
Date:4/20/2010

An Agricultural Research Service (ARS ) scientist may have found a way to cut the amount of ammonia produced by cattle. To do it, he's using a key ingredient of the brewer's art: hops.

Cattle, deer, sheep, goats and other ruminant animals depend on a slew of naturally occurring bacteria to aid digestion of grass and other fibrous plants in the first of their four stomach chambers, known as the rumen.

The problem, according to ARS microbiologist Michael Flythe, comes from one group of bacteria, known as hyper-ammonia-producing bacteria, or HABs. While other bacteria are helping their bovine hosts convert plant fibers to cud, HABs are breaking down amino acids, a chemical process that produces ammonia and robs the animals of the amino acids they need to build muscle tissue, according to Flythe, who works at the ARS Forage Animal Production Research Unit (FAPRU) in Lexington, Ky.

To make up for lost amino acids, cattle growers have to add expensive and inefficient high-protein supplements to their animals' feed.

According to Flythe, hops can reduce HAB populations. Hops, a natural preservative, were originally added to beer to limit bacterial growth.

Flythe put either dried hops flowers or hops extracts in either cultures of pure HAB or a bacterial mix collected from a live cow's rumen. Both the hops flowers and the extracts inhibited HAB growth and ammonia production.

Flythe and FAPRU plant physiologist Isabelle Kagan have completed a similar project with more typical forage. They recently identified a compound in red clover that inhibits HAB. Results of that study were published recently in Current Microbiology.

Flythe also collaborated with FAPRU animal scientist Glen Aiken on a study in which hops had a positive effect on the rumen's volatile fatty acid ratios, which are important to ruminant nutrition.


'/>"/>

Contact: Chris Guy
Chris.Guy@ars.usda.gov
301-504-1654
United States Department of Agriculture-Research, Education, and Economics
Source:Eurekalert

Page: 1

Related biology news :

1. Natural chemical found in broccoli helps combat skin blistering disease
2. Device helps patients survive, regain function til transplant
3. Presence of gene mutation helps guide thyroid cancer treatment
4. CABI helps phase out dangerous pesticide in EU
5. Diet support helps chronic kidney patients
6. Argonne helps China create cleaner Beijing for 2008 Olympics
7. A tiny pinch from a z-ring helps bacteria cells divide
8. Ultraviolet light helps to secure water supply
9. MSU researcher helps develop computer game for Ugandan children recovering from cerebral malaria
10. Handbook helps parents deal with childhood infections
11. NASA technology helps predict and prevent future pandemic outbreaks
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/15/2016)... ALBANY, New York , June 15, 2016 ... published a new market report titled "Gesture Recognition Market ... Trends and Forecast, 2016 - 2024". According to the ... at USD 11.60 billion in 2015 and is ... and reach USD 48.56 billion by 2024.  ...
(Date:6/9/2016)... Finland , June 9, 2016 ... National Police deploy Teleste,s video security solution to ensure the ... France during the major tournament ... data communications systems and services, announced today that its video ... Prefecture to back up public safety across the ...
(Date:6/3/2016)... , June 3, 2016 ... von Nepal hat ... Lieferung hochsicherer geprägter Kennzeichen, einschließlich Personalisierung, Registrierung ... in der Produktion und Implementierung von Identitätsmanagementlösungen. ... Ausschreibung im Januar teilgenommen, aber Decatur wurde ...
Breaking Biology News(10 mins):
(Date:12/2/2016)... Raleigh, NC (PRWEB) , ... December 01, 2016 ... ... the US Computational Science Symposium (CSS) and the popularity of US Single Day ... will take place in early Summer 2018, in Raleigh, NC. Topics of the ...
(Date:12/2/2016)... ... December 01, 2016 , ... Orthogonal, a ... their recent FDA Class II 510(k) clearance for their flagship medical device, SimplECG. ... remote cardiac monitoring devices that rely on cloth-based nanosensors. While other companies have ...
(Date:12/2/2016)... NEW YORK , Dec. 1, 2016   ... liquid photopurification, announced today that the Company has concluded ... has the right for a 90-day period to acquire ... invoice value of approximately USD 3.7 million.  ... an agreement with Tamarack under which Tamarack will seek ...
(Date:11/30/2016)... CA (PRWEB) , ... November 30, 2016 , ... ... a new moving magnet Voice Coil Actuator with a flexure design that ensures ... long life with cost-effective pricing and is ideally suited where extreme precision is ...
Breaking Biology Technology: