Evaluation of a Model to Predict Enteric Methane Production from Feedlot Cattle


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Purpose

Continual refinement of methods estimating enteric methane production in beef finishing cattle provides a more accurate assessment of the environmental impact of the beef industry.  The USDA-OCE publication “Quantifying Greenhouse Gas Fluxes in Agriculture and Forestry: Methods for Entity-Scale Inventory” identified conservation practices and management strategies for reducing greenhouse gas emissions while improving agriculture production (Eve et al.,…

Recommendations of the Chesapeake Bay Program Expert Panel on Manure Treatment Technologies

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Purpose

The US EPA Chesapeake Bay Program assesses nutrient loading to the Chesapeake Bay. There is a need to determine the impact of manure treatment technologies on reducing the nitrogen and phosphorus loading from agriculture. Furthermore, many states within the Chesapeake Bay Watershed control nutrient discharges through watershed nutrient trading programs.…

PA Finishing Swine Barn Experience: Changing from Mortality Burial to a Michigan Style Composting Barn

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Purpose

In the spring of 2014, the farmer with a 2020 finishing pig barn, wanted to change from burial of mortality to composting the mortality. We will document the change and the use of the composting barn from July 2014 to Dec 2016.

What did we do?

This 2020 finish pig barn space has about 3% mortality and expects about 250 deaths per year to compost.…

Organizing demonstrations and tours for Government officials and Extension on Animal Mortality Management

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Purpose

Provide some discussion on putting together Tour and Demonstration educational events. To Provide real life demonstrations and educational opportunities dealing with Mortality management.

What did we do?

The agent participated on a multi-state and multi country steering committee to organize and host an international symposium on Animal Mortality and Disposal Management.…

Closing Abandoned Livestock Lagoons Effectively to Utilize Nutrients and Avoid Environmental Problems


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Purpose 

In Nebraska alone, nearly 400 earthen manure storage structures are in operation; approximately four dozen requests to cease operation of permitted lagoons were received by the Nebraska Department of Environmental Quality in the prior decade with many more non-permitted storage structures being in need of proper closure.…

Utilization of Woody Biomass and Manure as Agricultural Soil Amendments in Nebraska


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Purpose 

While Eastern Redcedar are native to Nebraska and much of the Central U.S., the ability of these trees to thrive in many soils and under a broad range of climatic conditions has contributed to their designation as an invasive species. Cedar tree proliferation negatively impacts agriculture by reducing groundwater availability, compromising grazing land, impeding forage production for cattle, and altering surface water flows.…

Integrating Small Scale Digestion Systems in Developing Regions


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Purpose           

People in developing countries regularly lack access to energy or their energy source is not reliable. Low cost anaerobic digestion systems have the potential to provide methane to be used in a variety of end uses. Unfortunately, many low cost systems are not evaluated and it is unclear if they are living up to the expectations of the end users or those that are promoting or financially supporting their installation.…

Continuous Response Measurement: A Tool to Assess the Effectiveness of Agricultural GHG Mitigation Messaging among Extension Educators


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Purpose           

The purpose of this paper is to demonstrate the feasibility of using the Continuous Response Measurement (CRM) tool together with focus group discussion among CRM users to evaluate the effectiveness of Extension education videos that feature controversial subject matter.…