Navigation Links
In beef production, cow-calf phase contributes most greenhouse gases

Jan. 30 2013 - Scientists have long known that cattle produce carbon dioxide and methane throughout their lives, but a new study pinpoints the cow-calf stage as a major contributor of greenhouse gases during beef production.

In a new paper for the Journal of Animal Science, scientists estimate greenhouse gas emissions from beef cattle during different stages of life. They show that, depending on which production system farmers used, beef production has a carbon footprint ranging from 10.7 to 22.6 kg of carbon dioxide equivalent per kg of hot carcass weight.

According to study co-author Frank Mitloehner, an associate professor in the Department of Animal Science at UC Davis, one source of greenhouse gases was surprising.

"If you look at everything that contributes to greenhouse gases through the beef supply chain, then it is the cow-calf that produces the greatest greenhouse gases," Mitloehner said.

In the cow-calf phase, the cow gives birth and nurses the calf until the calf is six to 10 months old. During this time, the cow eats rough plants like hay and grasses. The methane-producing bacteria in the cow's gut thrive on these plants.

"The more roughage is in the diet of the ruminant animal, the more methane is produced by the microbes in the gut of the ruminant, and methane comes out the front end," Mitloehner said.

In feedlots, by contrast, cattle eat mostly corn and grains, which the methane-producing bacteria cannot use as effectively.

Methane is one of the most important greenhouse gases. Methane has a greater capacity to trap heat in the atmosphere than carbon dioxide.

The beef industry has been paying close attention to greenhouse gas emissions in recent years.

"We are doing a lot to measure and mitigate our impact," said Chase Adams, director of communications for the National Cattlemen's Beef Association.

In a 2011 paper for the Journal of Animal Science, researcher Jude Capper showed that the beef industry today uses significantly less water and land than 30 years ago. The industry has also reduced its carbon footprint by 16.3 percent per billion kilograms of beef produced.

According to Mitloehner, beef producers can further reduce their carbon impact by using new technologies like growth promotants. However, consumers are often uncomfortable with these methods, and they choose organic beef or beef with reduced amounts of growth promotants.

"The technologies many consumers are critical of are those that help us receive the greatest environmental gains," Mitloehner said.

Contact: Madeline McCurry-Schmidt
American Society of Animal Science

Related biology news :

1. Agricultural expert outlines path for developing nations to double food production, meet 2050 demand
2. F1000Research, the first Open Science publisher, launches following a successful beta testing phase
3. National Geographic unveils new phase of genographic project
4. King Richard III search in new phase after discovery has potential to rewrite history
5. Lack of vitamin D contributes to pain in black Americans with knee osteoarthritis
6. 23andMe contributes to genetic discoveries related to male pattern baldness
7. Toward reducing the greenhouse gas emissions of the Internet and telecommunications
8. Agriculture & food production contribute up to 29 percent of global greenhouse gas emissions
9. Smart growth strategies curb car use, greenhouse gas emissions, SF State study suggests
10. Destroyed coastal habitats produce significant greenhouse gas
11. Caution needed with new greenhouse gas emission standards
Post Your Comments:
(Date:5/23/2017)... , May 23, 2017  Hunova, the first robotic gym for ... has been officially launched in Genoa, Italy . The ... and the USA . The technology was ... the market by the IIT spin-off Movendo Technology thanks to a 10 ... Multimedia News Release, please click: ...
(Date:5/16/2017)... --  Bridge Patient Portal , an enterprise patient ... Systems , an electronic medical record solutions developer ... a partnership to build an interface between the ... products, including Centricity Practice Solution (CPS), Centricity Business ... integrations will allow healthcare delivery networks using GE ...
(Date:4/24/2017)... WASHINGTON , April 24, 2017 ... counsel and partner with  Identity Strategy Partners, LLP ... "With or without President Trump,s March 6, ... Foreign Terrorist Entry , refugee vetting can be instilled ... refugee resettlement. (Right now, all refugee applications are ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... a leading provider of patient support solutions, has announced the ... which will launch this week. The VMS CNEs will address ... enhance the patient care experience by delivering peer-to-peer education programs ... to help women who have been diagnosed and are being ... ...
(Date:10/10/2017)... ... October 10, 2017 , ... San Diego-based team building and cooking events company, ... today. The bold new look is part of a transformation to increase awareness, ... significant growth period. , It will also expand its service offering from its signature ...
(Date:10/10/2017)... 2017 SomaGenics announced the receipt of a ... RealSeq®-SC (Single Cell), expected to be the first commercially ... microRNAs) from single cells using NGS methods. The NIH,s ... accelerate development of approaches to analyze the heterogeneity of ... techniques for measuring levels of mRNAs in individual cells ...
(Date:10/9/2017)... ... October 09, 2017 , ... At its national board meeting in North ... in Harvard University’s Departments of Physics and Astronomy, has been selected for membership in ... winning team for the 2015 Breakthrough Prize in Fundamental physics for the discovery of ...
Breaking Biology Technology: