Production of Greenhouse Gases, Ammonia, Hydrogen Sulfide, and Odorous Volatile Organic Compounds from Manure of Beef Feedlot Cattle Implanted with Anabolic Steroids

Animal production is part of a larger agricultural nutrient recycling system that includes soil, water, plants, animals and livestock excreta. When inefficient storage or utilization of nutrients occurs, parts of this cycle become overloaded. The U.S. Beef industry has made great strides in improving production efficiency with a significant emphasis on improving feed efficiency.

Greenhouse Gases and Agriculture (Self Study Lesson)

This is a self-guided learning lesson about greenhouse gases (GHG) and their connections to livestock and poultry production. It is useful for self-study and for professionals wishing to submit continuing education credits to a certifying organization. Anticipated time: 60 minutes. At the bottom of the page is a quiz that can be submitted and a score of 7 out of 10 or better will earn a certificate of completion.…

Measuring Nitrous Oxide and Methane Emissions from Feedyard Pen Surfaces; Experience with the NFT-NSS Chamber Technique

Why Study Nitrous Oxide and Methane at Cattle Feedyards?

Accurate estimation of greenhouse gas emissions, including nitrous oxide and methane, from open beef cattle feedlots is an increasing concern given the current and potential future reporting requirements for GHG emissions. Research measuring emission fluxes of GHGs from open beef cattle feedlots, however, has been very limited.…

Measuring nitrous oxide emissions from a Wisconsin dairy forage cropping system

Nitrous oxide emitted from cropland constitutes a significant component of the agricultural sector’s overall greenhouse gas footprint. In order to accurately evaluate mitigation strategies, predict impacts, and model system behavior under future climate scenarios, it is essential to have access to flux measurements collected under regionally relevant conditions of soil, weather, and management strategies.…