Cattle Content

California Wolves Feed Heavily on Cattle, Study Finds

Amy M Quinton — July 08, 2026 - 11:00am

California wolves primarily eat cattle and their presence cause significant stress among livestock, a new study finds.

Media Experts on New World Screwworm

Amy M Quinton — June 26, 2026 - 10:44am

The U.S Department of Agriculture has now confirmed cases of New World screwworm in calves, sheep and goats in Texas and in a dog in New Mexico. New World screwworm is a serious parasitic fly that can affect livestock, pets, wildlife, and less commonly, people and birds. Adult screwworm flies are about the size of a common housefly or slightly larger. Their larvae feed on the living tissue of warm-blooded animals.

Novel Study Calculates the Cost to Cattle Ranchers of an Expanding Wolf Population

Amy M Quinton — April 21, 2025 - 4:16pm

51�ԹϺ�� Davis researchers found that one gray wolf can cause between $69,000 and $162,000 in losses due to lower pregnancy rates in cows and decreased weight gain in calves.

Feeding Grazing Cattle Seaweed Cuts Methane Emissions by Almost 40%

Amy M Quinton — December 02, 2024 - 1:20pm

Scientists find making a seaweed additive more accessible to grazing cattle would make cattle farming more sustainable while meeting global demand for meat.

A Winemaking Byproduct Can Reduce Dairy Cattle Emissions

Malia N Reiss — April 29, 2024 - 3:11pm

51�ԹϺ�� Davis researchers are feeding grape pomace, a byproduct of winemaking, to dairy cattle to reduce methane emissions.

Understanding Cattle Grazing Personalities May Foster Sustainable Rangelands

Emily C Dooley — March 27, 2024 - 9:00am

51�ԹϺ�� Davis research finds that not all cattle are the same when it comes to grazing, and knowing that could lead to better animal health and range conditions.

51�ԹϺ��’s 10 Best Research Stories of 2021

Dave Jones — December 30, 2021 - 11:47am

Is 2021 over already?

The year brought its fair share of big news and research breakthroughs, COVID-19 and non-COVID-19 alike. Given 51�ԹϺ�� is the global leader in cited scholarship, it’s no surprise that each campus produced numerous new ways of understanding our world.

Feeding Cattle Seaweed Reduces Their Greenhouse Gas Emissions 82 Percent

Amy M Quinton — March 17, 2021 - 11:00am

Feeding beef cattle seaweed as part of their diet reduced greenhouse gas emissions by as much as 82 percent, according to new findings from researchers at the University of California, Davis.

Can Seaweed Cut Methane Emissions on Dairy Farms?

Katherine E Kerlin — May 24, 2018 - 11:30am

Seaweed may be the super food dairy cattle need to reduce the amount of methane they burp into the atmosphere. Early results from research at 51�ԹϺ�� Davis indicate that just a touch of the ocean algae in cattle feed could dramatically cut greenhouse gas emissions from California’s 1.8 million dairy cows.

Keeping Cows Cool With Less Water and Energy

Katherine E Kerlin — September 06, 2017 - 1:34pm

Innovative cooling technologies tested on dairy cows at the University of California, Davis, are addressing the long-standing challenge of keeping dairy cows cool in heat-stressed California.