Most technologies developed in recent years to reduce odor and gas emissions from livestock never make it to the farm for further testing, researchers at Iowa State University said Monday.
ISU researchers reviewed 265 academic papers published through the end of 2014 that looked at the effectiveness of technologies intended to control emissions from livestock and poultry operations. The practices focused on animal housing, manure storage and land application techniques.
The review found that about 25 percent of all mitigation practices examined in the literature made it to field trials. Koziel said an estimated three-quarters failed because either the experimental technology didn’t work or there was a lack of funding to continue the research.