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Nutrient excretion and soil greenhouse emission from excreta of overwintering beef cows fed forage-based diets supplemented with dried distillers’ grains with solubles

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dc.contributor.supervisor Tenuta, Mario (Soil Science) Flaten, Don (Soil Science) en
dc.contributor.author Donohoe, Gwendolyn R.
dc.date.accessioned 2011-01-17T17:24:08Z
dc.date.available 2011-01-17T17:24:08Z
dc.date.issued 2011-01-17T17:24:08Z
dc.identifier.uri http://hdl.handle.net/1993/4349
dc.description.abstract A study was conducted to examine the impact of diet and cold weather on the excretion of nitrogen (N) and phosphorus (P) from beef cows, and the potential for these nutrients to be lost to waterways or as greenhouse gases (GHG). Feces and urine were collected from mature cows fed low-quality forage supplemented with DDGS to 0%, 10%, and 20% ww-1 in the fall of 2008 and winter of 2009. A detailed nutrient analysis was performed to determine forms of N and fractions of P in excreta. Feces, urine, and a simulated bedding pack were then applied to grassland to determine soil GHG emission. Cattle receiving DDGS supplementation excreted greater proportions of labile P in feces and greater concentrations of P in urine. The 20% DDGS diets had greater nitrous oxide emission from urine patches and greater proportions of available N in urine and feces. en
dc.format.extent 2523027 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.subject nitrous oxide en
dc.subject phosphorus en
dc.subject nitrogen en
dc.subject overwintering beef cows en
dc.subject urine en
dc.subject feces en
dc.subject forage en
dc.subject dried distillers' grains with solubles en
dc.title Nutrient excretion and soil greenhouse emission from excreta of overwintering beef cows fed forage-based diets supplemented with dried distillers’ grains with solubles en
dc.degree.discipline Soil Science en
dc.contributor.examiningcommittee Ominski, Kim (Animal Science) Akinremi, Wole (Soil Science) en
dc.degree.level Master of Science (M.Sc.) en
dc.description.note February 2011 en


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