Rick Rasby, Retired Nebraska Extension Specialist

Black and white cow eating hay in a stall

June 1, 2026

Part 6 of 6: Are There Methane Mitigation Strategies for Cattle?

By Galen Erickson, Nebraska Extension Beef Feedlot Specialist, Matt Spangler, Professor and Beef Genetics Extension Specialist, Samodha Fernando – UNL Rumen Microbiologist, Rick Stowell, Extension Specialist, University of Nebraska-Lincoln Biological Systems Engineering, Paul Kononoff – UNL Dairy Specialist, Rick Rasby, Retired Nebraska Extension Specialist, Kortney Harpestad – UNL Animal Science Extension Program Associate

Cows enclosed in ventilated metabolic chambers in a laboratory setting to measure methane released.

May 1, 2026

How is Methane from Cattle Measured? Part 5 of 6

By Tami Brown Brandl – UNL Professor of Biological Systems Engineering, Rick Stowell, Extension Specialist, University of Nebraska-Lincoln Biological Systems Engineering, Rick Rasby, Retired Nebraska Extension Specialist, Kortney Harpestad – UNL Animal Science Extension Program Associate

Cattle eat feed out of a cement bunk

April 1, 2026

Part 4 of 6: How and Why is Methane in Cattle Produced

By Samodha Fernando – UNL Rumen Microbiologist, Rick Rasby, Retired Nebraska Extension Specialist, Kortney Harpestad – UNL Animal Science Extension Program Associate

Milk cows eat their feed in a clean barn.

March 1, 2026

Part 3 of 6: What are Cattle’s Contributions to Greenhouse Gases?

By Galen Erickson, Nebraska Extension Beef Feedlot Specialist, Paul Kononoff – UNL Dairy Specialist, Rick Rasby, Retired Nebraska Extension Specialist, Kortney Harpestad – UNL Animal Science Extension Program Associate

Group of cattle at the feedyard

February 1, 2026

Part 2 of 6: What Research has the University of Nebraska Conducted on Methane Production in Cattle?

By Galen Erickson, Nebraska Extension Beef Feedlot Specialist, Paul Kononoff – UNL Dairy Specialist, Rick Rasby, Retired Nebraska Extension Specialist, Kortney Harpestad – UNL Animal Science Extension Program Associate

Methane, carbon dioxide, and nitrous oxide are greenhouse gases.

January 1, 2026

Part 1 of 6: What are greenhouse gases (GHG) and where are they produced?

By Kortney Harpestad – UNL Animal Science Extension Program Associate, Galen Erickson, Nebraska Extension Beef Feedlot Specialist, Paul Kononoff – UNL Dairy Specialist, Rick Rasby, Retired Nebraska Extension Specialist

Graphic of methane production in ruminants

November 1, 2025

Understanding and Mitigating Methane Emissions from Cattle

By Galen Erickson, Nebraska Extension Beef Feedlot Specialist, Rick Rasby, Retired Nebraska Extension Specialist, Matt Spangler, Professor and Beef Genetics Extension Specialist, Jessica L. Sperber, Nebraska Extension Feedlot Specialist, Rick Stowell, Extension Specialist, University of Nebraska-Lincoln Biological Systems Engineering, Tami Brown Brandl – UNL Professor of Biological Systems Engineering, Samodha Fernando – UNL Rumen Microbiologist, Paul Kononoff – UNL Dairy Specialist, Kortney Harpestad – UNL Animal Science Extension Program Associate, Keara O’Reilly – UNL Research Professor

Corn sprouting from downed ears

October 20, 2025

Can Beef Cows Graze Corn that Sprouted in a Corn Field?

By Mary Drewnoski, Nebraska Extension Beef Systems Specialist, Rick Rasby, Retired Nebraska Extension Specialist

Young calf with cows in pasture

October 1, 2025

What are some Management Tips for Fall-Calving Cows?

By Brent Plugge, Nebraska Extension Educator, Rick Rasby, Retired Nebraska Extension Specialist

Calves eating out a creep feeder

July 1, 2025

Creep Feeding Beef Calves: Profit or Expense?

By Jessica L. Sperber, Nebraska Extension Feedlot Specialist, Rick Rasby, Retired Nebraska Extension Specialist

Cow and calf in pasture with another cow laying in the grass

June 1, 2025

Strategies to Consider When Culling Cows in 2025

By Brock Ortner, Nebraska Extension Livestock System Educator, Aaron Berger, Nebraska Extension Educator, Rick Rasby, Retired Nebraska Extension Specialist

Steers at bunk

February 2, 2020

What does a feed tag tell you?

By Rick Rasby, Retired Nebraska Extension Specialist