Hydrogen sulfide gas is a serious issue in and around barns with liquid manure storage. The decomposition of organic matter in manure results in the release of several gases: ammonia, carbon dioxide, methane and hydrogen sulfide among them. Most of the time these gases are emitted at low levels, but any time manure is being agitated [Continue Reading…]
ISU review finds majority of technologies aimed at reducing odor and gas emissions from livestock production never see field-scale testing
A review of hundreds of academic articles on technologies to reduce odor and gas emissions from livestock operations shows that most such technologies undergo lab testing but never reach farm-scale study. A team of ISU researchers surveyed all the available publications on mitigation practices that focus on animal housing, manure storage and land application techniques.
Faulty ventilation can be catastrophic to hog producers, says Jay Harmon, Extension ag engineer at Iowa State University. He says fall is the perfect time to make sure ventilation systems are in working order. “You can do things like washing the pit fans while the weather is nice, checking the curtains and other things,” Harmon says.
JAY D. HARMON, P.E., ASABE Fellow, is the recipient of the 2015 G.B. Gunlogson Countryside Engineering Award for his exemplary service to animal production systems through the application of engineering principles and performance in research, extension, outreach, and teaching. Harmon, professor and extension livestock housing specialist in the agricultural and biosystems engineering department at Iowa [Continue Reading…]
A team of Iowa State University specialists has developed an online tool to help livestock and poultry producers compare odor-mitigation techniques. The Air Management Practices Assessment Tool is web-based, available at www.agronext.iastate.edu/ampat at no charge. “The website was developed to help livestock and poultry producers identify practices to reduce odors, and emissions of gases and [Continue Reading…]
Extension specialists are trained to be able to communicate technical information to a wide range of audiences. They act as bridges between research and application, so it was no surprise that Jay Harmon, agricultural and biosystems engineering (ABE) professor, brought those skills to the construction of the Biorenewables Complex. Harmon’s combination of expertise, communication skills [Continue Reading…]
A team of Iowa State University Extension and Outreach specialists have developed an online tool to help livestock and poultry producers compare odor mitigation techniques that could be useful on their farms. Air Management Practices Assessment Tool, AMPAT for short, is web-based and available at no charge at www.agronext.iastate.edu/ampat. “The website was developed to help [Continue Reading…]
Jay Harmon has been named the interim director for Iowa State University’s Iowa Pork Industry Center. Harmon, a professor of agricultural and biosystems engineering and an extension livestock housing specialist, brings expertise in pork production systems to the position, which promotes efficient pork production technologies in Iowa. His goal is to increase awareness of the [Continue Reading…]
Iowa State University agricultural engineer Jay Harmon has been named the interim director of the Iowa Pork Industry Center. Harmon, a professor of agricultural and biosystems engineering and an extension livestock housing specialist, brings expertise in pork production systems to the position, which promotes efficient pork production technologies in Iowa. His goal is to increase [Continue Reading…]
As the temperature and humidity level rise outside, producer need to address animal comfort indoors. Iowa Pork Industry Center interim director Jay Harmon said it’s the combination of air movement and wetting that help pigs. Wetting pigs is imperative because pigs don’t truly sweat like humans so. Wetting pigs is like giving them some artificial [Continue Reading…]
Air Management Practices Assessment Tool Evaluation of polymer to reduce emissions from swine finishing facilities Estimating methane emissions Anaerobic digestion’s impact on odor, ammonia Diets that reduce ammonia emissions from hen houses Environmental assessment of laying-hen housing systems Quantifying emissions from swine facilities Community assessment model (CAM) for odor dispersion Biofilters conference and educational modules [Continue Reading…]
AMES – With the recent spike in propane prices, it’s never too soon to start conserving heating energy. Pork producers may have propane contracted at a reasonable rate, but managing heating costs should always be a priority, especially when expenses are rising. “Often the first idea for saving heating fuel in hog buildings is to [Continue Reading…]