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Full-Text Articles in Engineering
National Livestock And Poultry Environmental Learning Center, Richard K. Koelsch, Mark Risse, Joe Harrison, Jill Heemstra
National Livestock And Poultry Environmental Learning Center, Richard K. Koelsch, Mark Risse, Joe Harrison, Jill Heemstra
Department of Biological Systems Engineering: Conference Presentations and White Papers
This paper describes a new national learning center designed to improve the delivery of science-based information to non-research customers. The vision of the Livestock and Poultry Environmental Learning Center is to provide individuals involved in public policy issues, animal production, and delivery of technical services for confined animal systems with on-demand access to the nation’s best science-based resources that is responsive to priority and emerging environmental issues associated with animal agriculture. This project will test innovative approaches such as a web cast seminar series to connect national experts with those individuals and organizations that influence animal producer decisions on manure …
Software Tool For Integrating Feed Management Into Nutrient Planning, Richard K. Koelsch, Ray Massey, Galen E. Erickson, Virgil R. Bremer
Software Tool For Integrating Feed Management Into Nutrient Planning, Richard K. Koelsch, Ray Massey, Galen E. Erickson, Virgil R. Bremer
Department of Biological Systems Engineering: Conference Presentations and White Papers
The introduction of ASABE Standard D384.2, Manure Production and Characteristics, has created the opportunity to integrate feed management decisions and animal performance measures into nutrient planning processes. This paper introduces a software tool that integrates estimates of nutrient excretion based on the new standard with estimates of land need, labor and equipment time allocation, and economic cost and benefit for manure application. This tool will be used to evaluate the economic implications for two scenarios using beef cattle examples as a means of illustrating tool application. The first scenario will look at the impact of feeding ethanol co-products on the …
Integrating Animal Feeding Strategies Into Cnmp Processes: Role Of Updated Asae Standard D384.2, Richard K. Koelsch, W. Powers, A. L. Sutton
Integrating Animal Feeding Strategies Into Cnmp Processes: Role Of Updated Asae Standard D384.2, Richard K. Koelsch, W. Powers, A. L. Sutton
Department of Biological Systems Engineering: Conference Presentations and White Papers
This paper introduces the new ASAE Standard D384.2, Manure Production and Characteristics. This new standard provides an equation-based approach that integrates dry matter and nutrient intake as well as animal performance into the final estimate of total solids, nitrogen, and phosphorus excretion for seven livestock and poultry species. The manure excretion estimates of the new standard are compared with the past ASAE standard as well as other commonly used reference values for three specie groups. Significant differences in excretion are common with the new standard compared to past standards. The paper also details examples of how common industry variations in …
Proposed Beef Cattle Manure Excretion And Characteristics Standard For Asae, Galen E. Erickson, B. Auvermann, R. A. Eigenberg, L. W. Greene, Terry J. Klopfenstein, Richard K. Koelsch
Proposed Beef Cattle Manure Excretion And Characteristics Standard For Asae, Galen E. Erickson, B. Auvermann, R. A. Eigenberg, L. W. Greene, Terry J. Klopfenstein, Richard K. Koelsch
Department of Biological Systems Engineering: Conference Presentations and White Papers
A committee was formed consisting of both animal scientists and agricultural engineers to evaluate and update current ASAE standards. An intake minus retention model was developed to estimate nutrient excretion. This approach allows users (producers, engineers, etc.) to develop site specific information based on known variables such as protein or phosphorus content of diets and cattle performance. This approach illustrates the importance of nutrition on nutrient excretion in livestock operations. Our focus is for feedlot cattle and updates excretion of dry matter (DM or total solids), organic matter (OM or volatile solids), N, P, Ca, K, Na, Mg, S, Cu, …