Results 101 to 110 of about 454 (123)

Diel VOC Emissions from a Beef Cattle Feedyard

2008 Providence, Rhode Island, June 29 - July 2, 2008, 2008
Odor emission from waste lagoons at concentrated animal feeding operations has been a source of concern for some time. More than 11 million cattle are fed annually in Texas Panhandle feedyards, representing thirty percent of the nation’s fed beef. The goal of this research was to determine if there is a diel effect in total VFA and sVOC emissions from ...
null Edward A Caraway, null David B Parker, null Kenneth D Casey, null Mark J Olsen, null Chanci Donnell, null Marty B Rhoades, null Jan Spears   +6 more
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Economic Analysis of a Water Truck for Feedyard Dust Suppression

2008
Dust created in feedyards can adversely affect cattle performance. Dust suppression can be accomplished by moistening pen surfaces with traveling gun(s) sprinklers, solid-set sprinklers, and water trucks. This study specifically addresses the fixed and operational costs associated with a water truck for various sized feedyards.
Amosson, Stephen H., Bretz, Fran E., Warminski, Patrick L., Marek, Thomas H., Amosson, Stephen H., Bretz, Fran E., Warminski, Patrick L., Marek, Thomas H.   +7 more
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Characterization of Ammonium Sorption by Beef Cattle Feedyard Manure

Transactions of the ASABE, 2012
Ammonia (NH3) emissions from beef cattle feedyards represent a loss of agronomically important N and can potentially affect the environment. Sorption of ammonium (NH4+) and NH3 by mineral and organic solids decreases the proportion of free, aqueous ammoniacal N, which reduces volatilization potential.
null H. M. Waldrip, null R. W. Todd, null N. A. Cole   +2 more
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Managing beef-on-dairy on a feedyard

American Association of Bovine Practitioners Conference Proceedings
This talk walks through a systemic approach to evaluating in­coming beef-on-dairy-cross calves entering into a feedlot and how to tailor protocols and management practices specific to each lot or group. There are numerous unknowns and differ­ent environments that beef-on-dairy-cross calves are raised in during the nursery and backgrounder phases. Thus,
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312. Overview of the Timmerman Feedyard Management Internship

Journal of Animal Science
Abstract The Timmerman Feedyard Management Internship began in 1988 under the direction of Dr. Terry Klopfenstein. It is a nationally renowned feedyard management training program, exclusive to University of Nebraska-Lincoln. The internship trains students through comprehensive feedyard management classes and with real world ...
Jim C MacDonald, Galen E Erickson, Jessica L Sperber   +2 more
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Economic Analysis of a Traveling Gun for Feedyard Dust Suppression

2007
Dust created in feedyards can adversely affect cattle performance. Dust suppression can be accomplished by moistening pen surfaces with traveling gun(s) sprinklers, solid-set sprinklers, and water trucks. This study specifically addresses the fixed and operational costs associated with a traveling gun sprinkler system for various sized feedyards.
Amosson, Stephen H., Bretz, Fran E., New, Leon L., Almas, Lal K., Amosson, Stephen H., Bretz, Fran E., New, Leon L., Almas, Lal K.   +7 more
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Effects of aerosolized feedyard dust that contains natural endotoxins on adult sheep

American Journal of Veterinary Research, 2002
Abstract Objective—To determine the clinical, clinicopathologic, and histologic effects of aerosolized feedyard dust that contains natural endotoxins on adult sheep. Animals—Eighteen 3-year-old Saint Croix sheep. Procedure—A prospective randomized controlled study was conducted.
Charles W, Purdy, David C, Straus, Norbert, Chirase, David B, Parker, J R, Ayers, Mark D, Hoover   +5 more
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Monitoring and Identification of Flying Insects at Feedyards on the Texas High Plains

2001 Sacramento, CA July 29-August 1,2001, 2001
More than 7 million beef cattle are fed in open-lot feedyards in the Texas High Plains. As urban populations encroach upon rural agricultural communities, concerns about nuisance issues escalate. One of the nuisance concerns for feedyards and nearby neighbors is flying insects.
null Justin L. Talley, null Greta L. Schuster, null David B. Parker, null Bill Clymer   +3 more
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Economic Analysis of Manure Harvesting Equipment in Feedyards for Dust Control

2010
This study concentrated on one method of dust control which is harvesting manure with equipment. An economic analysis including hourly fixed and operational costs were performed on the following: tractor-pulled box scraper, front-end loader, dump truck, spreader truck, elevating scraper and tractor-pulled end dump.
Bretz, Fran E., Amosson, Stephen H., Warminski, Patrick L., Marek, Thomas H., Bretz, Fran E., Amosson, Stephen H., Warminski, Patrick L., Marek, Thomas H.   +7 more
openaire   +3 more sources

Air quality in open-lot dairies and cattle feedyards

American Association of Bovine Practitioners Conference Proceedings, 2014
The research community is making good progress in understanding the mechanical, biochemical, and atmospheric processes responsible for airborne emissions of particulate matter (PM, or “dust”), gases, and vapors from open-lot livestock production, especially dairies and cattle feedyards.
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