Article published the September 12, 2013
Iowa leads the nation in corn and ethanol production. For corn-based ethanol plants, a primary co-product of the process is distillers dried grains with solubles (DDGS). DDGS have been reported to contain high levels of digestible energy and metabolizable energy, digestible amino acids, and available phosphorus (Shurson et al., 2003; Honeyman et al., 2007). Generally, DDGS have been ...
Article published the September 10, 2013
Odor from swine production systems is generated at three primary sources: animal housing, manure storage and during land application. This publication addresses controlling odors during land application of swine manure. Unlike odor generation from animal housing and manure storage, which are usually continuous in nature, odor from manure application is an "event-based" occurrence. T ...
Article published the July 22, 2013
Recent research has shown that over half of nitrogen excreted by chickens is lost into the atmosphere via ammonia volatilization before the litter is removed from poultry houses. Large quantities of particulate matter and volatile organic compounds (VOCs) are also emitted from animal rearing facilities. During the past decade we have developed and patented an acid scrubber for capturing ...
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