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LinkedInPosts Tagged: Agriculture
Feeding grazing cattle seaweed cuts methane emissions by almost 40%
Findings offer solution for more climate-friendly cattle farming
Seaweed is once again showing promise for making cattle farming more sustainable. A new study by researchers at the University of California, Davis, found that feeding grazing beef cattle a seaweed supplement in pellet form reduced their methane emissions by almost 40% without affecting their health or weight. The study was published Dec. 2 in Proceedings of the National Academy of Sciences.
This is the first study to test seaweed on grazing beef cattle in the world. It follows previous studies that showed seaweed cut methane emissions 82% in feedlot cattle and over 50% in dairy cows.
How much methane do cattle produce?
“Beef cattle spend only about three months in feedlots and spend most of their lives grazing on pasture and producing methane,” said senior author Ermias Kebreab, professor in the Department of Animal Science. “We need to make this seaweed additive or any feed additive more accessible to grazing cattle to make cattle farming more sustainable while meeting the global demand for meat.”
Difficulty in reducing methane emissions from cattle
Kebreab said that daily feeding of pasture-based cattle is more difficult than feedlot or dairy cows because they often graze far from ranches for long periods. However, during the winter or when grass is scarce, ranchers often supplement their diet.
For this study, researchers divided 24 beef steers (a mix of Angus and Wagyu breeds) into two groups: one received the seaweed supplement, and the other did not. Researchers conducted the 10-week experiment at a ranch in Dillon, Montana. Since these were grazing cattle, they ate the supplement voluntarily, which still resulted in a nearly 40% cut in emissions.
Most research studies to reduce methane emissions using feed additives have taken place in controlled environments with daily supplements. But Kebreab noted in the study that fewer than half of those methods are effective for grazing cattle.
“This method paves the way to make a seaweed supplement easily available to grazing animals,” said Kebreab. “Ranchers could even introduce the seaweed through a lick block for their cattle.”
Kebreab said pastoral farming, which includes large grazing systems, supports millions of people around the world, often in areas vulnerable to climate change. This study suggests a way to make cattle grazing better for the environment, while playing a role in fighting climate change.
A related article in the same PNAS issue highlights the need to improve the efficiency of livestock production in low- and middle-income countries using better genetics, feeding and health practices. UC Davis Professor and Cooperative Extension Specialist Alison Van Eenennaam, the article's author, said it is the most promising approach to meet the global demand for meat while limiting greenhouse gas emissions.
Other authors of the seaweed study include UC Davis postdoctoral researchers Paulo de Méo Filho and John-Fredy Ramirez-Agudelo.
The research was supported by Matador Ranch in Dillon, Montana.
This article was first published on the UC Davis news site.
Desert Organic Research and Food Safety Workshop set for Dec. 4 in Holtville
The "Advances in Southwest Desert Agriculture Research, Organic Production and Food Safety" workshop is scheduled for Dec. 4 in Holtville. This event will showcase cutting-edge research and practical organic farming strategies tailored to California's unique desert environment.
The symposium will feature presentations from University of California Cooperative Extension advisors and other experts.
The agenda covers a range of critical topics, including insect pest management in low desert agriculture, weed management strategies for guayule seedlings, summer cover crops for soil health and disease management, integrated pest management for onion diseases, predicting sugar beet cyst nematode suppressiveness, and microbial risk assessment of soil amendments in organic romaine lettuce.
“These presentations will provide valuable insights into improving desert vegetable production, irrigation efficiency, and food safety practices specific to our region,” said co-organizer Jimmy Nguyen, University of California Cooperative Extension food safety and organic production area advisor for Imperial and Riverside counties.
“This symposium presents an excellent opportunity to learn about the latest research findings directly applicable to Imperial County agriculture, gain practical knowledge to enhance your agricultural practices, and network with fellow professionals and researchers in the field.”
The UC Cooperative Extension team aims to foster the exchange of ideas and promote the advancement of agricultural practices in the community.
“We encourage everyone involved in growing crops in Imperial County to attend this informative event and contribute to the ongoing dialogue on agricultural innovation in the Southwest desert region,” Nguyen said.
The workshop will be held at Barbara Worth Country Club, 2050 Country Club Dr, Holtville, CA 92250. Register at https://surveys.ucanr.edu/survey.cfm?surveynumber=43924.
For more information, please contact UC Cooperative Extension advisors Jimmy Nguyen, cgnguyen@ucanr.edu; Philip Waisen, pwaisen@ucanr.edu; Ali Montazar, amontazar@ucanr.edu; or Oli Bachie, obachie@ucanr.edu; or call (442) 265-7700.
UC Davis Alumna Inga Zasada to Present Dec. 2nd Seminar on Nematodes
UC Davis doctoral alumna Inga Zasada of the USDA-ARS Horticultural Crops...
Inga Zasada, who received her doctorate in plant pathology in 2002 from UC Davis and is now a research plant pathologist with USDA-ARS, will present a seminar on Dec. 2 in 122 Briggs Hall.
Outstanding Group of UC Davis Graduate Students at ESA Meeting
Graduate students with the UC Davis Department of Entomology and Nematology excelled at...
Standing behind the ESA motif are UC Davis doctoral candidates Christofer Brothers, CC Edwards and Lexie Martin.
UC Davis doctoral student Iris Quayle of the Jason Bond lab discussing her research on "A (Finally) Complete Phylogeny for the Charismatic Genus Onymacris Using Ultraconserved Elements." (Photo courtesy of Lexie Martin)
Doctoral student Briley Mullin of Ian Grettenberger lab speaking on "Evaluating the Use of Predatory Plant Bugs (Hemiptera: Miridae) as Biological Control Against the Invasive South American Tomato Leaf Miner (Tuta absoluta) in California Tomato Fields." (Photo courtesy of Lexie Martin)
UC Davis doctoral candidate Lexie Martin of the Rachel Vannette lab presenting her work on "Microbial Acquisition and Interactions in the Blue Orchard Bee (Osmia lignaria)"
UC Davis doctoral student Abigail Lehner of the Neal Williams lab discussing "Do Blue Orchard Bees (Osmia lignaria) Exhibit Plastic Behavior in Response to Parasitism by the Non-Native Houdini fly (Cacoxenus indagator)?" (Photo courtesy of Lexie Martin)
UC Davis Entomology Graduate Student Association members--Ziv Lieberman, Iris Quayle and CC Edwards--offering entomology T-shirts, all designed by members. They can be ordered online at https://ucdavisentgrad.square.site.
A view of the crowd from the UC Davis Entomology Graduate Student Association (EGSA) T-shirt booth. (Photo courtesy of Lexie Martin)
Ahluwalia brings financial savvy, community ethic to UCCE director role
New area director to support UC ANR programs in Colusa, Glenn, Butte, Yuba and Sutter counties
As the new University of California Cooperative Extension area director for five Northern California counties, Teghpreet “Preet” Ahluwalia has an impressive track record of connecting people with resources that can improve lives and uplift future generations.
After college at UC Davis, Ahluwalia immersed herself in the world of finance and real estate and started her own investment firm. Its clientele were mainly older adults seeking opportunities to build long-term wealth and security for their descendants.
“We wanted to open up these opportunities in our network to people who didn't have access to them, or wouldn't normally come across them,” Ahluwalia said.
She also volunteered on the board of the National Association of Women Business Owners to share her knowledge and help provide the resources that her entrepreneurial peers needed to thrive.
Beginning in her new role with UC Agriculture and Natural Resources this past August, Ahluwalia now provides administrative support as the area director to UCCE advisors and staff across Colusa, Glenn, Butte, Yuba and Sutter counties. Those teams offer expertise, partnerships and programs to benefit local food systems, community health and economic development.
Ahluwalia's passion for leading-edge research – coupled with her financial acumen and interest in agriculture – make her well-suited to serve as UCCE director.
“This position really represents the best of all worlds, where my experience in higher education and management just come together in this one role to help our clientele and community get to the next step of where they want to go,” she said.
Ahluwalia learned how to optimize budgets in Modoc County
Maximizing resources in a rural, farming area with a relatively small population is nothing new for Ahluwalia. After earning her MBA from UC Davis, Ahluwalia worked as the financial manager for the sheriff's office of Modoc County, in the far northeastern corner of California.
In remote Modoc, home to 8,500 resourceful people, Ahluwalia gained invaluable experience in navigating county government, working with the county administrator, seeing how budgets were determined – and then making the most of limited funds.
“We had a very limited budget in Modoc County, so we were always thinking creatively about what we could do differently to stretch that money or get more from another source,” she said.
Although Ahluwalia enjoyed living in Alturas and loved the natural beauty of the region, she moved back to the Sacramento area after getting married. In planning her next career move, Ahluwalia sought a path into higher education, taking a position in the admissions office of her alma mater, the UC Davis Graduate School of Management.
But when the UCCE area director job opening at UC ANR was posted, Ahluwalia saw an opportunity to tie-in another prominent aspect of her family story and heritage.
Childhood experiences, family history shaped ag interests
Although she was born in Calgary, Canada, Ahluwalia spent most of her formative years in Porterville in Tulare County. During her childhood, her father, who worked as a pharmacist during the day, also owned a small farm where he grew grapes and prunes. He would do his farm work from the evening until late at night – and on weekends.
“I think he was trying to do a little too much,” Ahluwalia said.
Although he eventually sold his operations, her father's herculean efforts demonstrate the importance of agriculture in their Sikh culture. Punjab, the homeland of many Sikhs, is a largely agricultural state in India.
Several UCCE advisors in the Central Valley identify as Sikh; during a recent regional UC ANR meeting, one of them expressed delight about Ahluwalia's leadership position.
“They didn't know I was in a director role,” Ahluwalia recalled. “They were just like, ‘We're excited to see you in this role because we've never seen anyone in this role from our community.'”
New director builds on legacy of strong relationships
In the first few months on the job, Ahluwalia has been focused on strengthening relationships with county agricultural commissioners, boards of supervisors and other key community leaders and organizations. Building upon the foundation set by the preceding UCCE county directors, Ahluwalia aims to make more people aware of the wide range of Cooperative Extension programs.
“I'm realizing, through my conversations in each of the counties, that people know we're here, they know we exist,” she said. “But to a certain extent, the community may not be familiar with the full spectrum of what UCCE is doing. Some of them don't know that we're pioneering 4-H youth programs, or that we're providing nutrition education through CalFresh Healthy Living – in addition to our farm advisors and volunteer programs such as UC Master Gardeners.”
To make work more productive, efficient and enjoyable for those advisors and staff, Ahluwalia said she is also looking to streamline administrative processes and offer support in whatever way she can.
“One of the biggest things I'll be doing is listening a lot,” she said. “What do they need and how can I advocate for that? I can't do anything alone – I can do the outreach; I can build the relationships. But they're the actual people who are connecting the research to our communities and providing that education and extension.”
Lynn Schmitt-McQuitty, UC ANR's director of county Cooperative Extension, believes that Ahluwalia has just the skill set and experience to thrive in managing teams and partnerships across five counties – all with their different priorities and needs.
“With her previous appointments in the Modoc County Sheriff's Office and the UC Davis School of Management, she has the essentials to successfully navigate the complex UCCE environment,” said Schmitt-McQuitty. “I'm excited to see how these skills will expand the research and extension in the region and build on the solid foundations the previous county directors established.”
