Energy and Nutrient Recovery from Cattle Feedlots Academic Article uri icon


  • Selective harvesting of manure can benefit cattle producers by creating a product of value. A tool that identifies locations of manure accumulation has been developed using a subsurface sensor (Dualem-1S, Milton, ON) and software designed for salt mapping (ESAP, Riverside, CA). The combination allowed the development of models to estimate higher heating value (HHV) of feedlot manure across a feedlot pen. Soil sample data from cattle feedlots in Texas and Nebraska were analyzed for volatile solids (VSs) then combined with the Dualem-1S apparent soil conductivity () data to produce models having correlations between associated values and VS (, VS). A corresponding model is under development to estimate the moisture content of the collectable solids. The combined models allow real-time spatial estimates of HHV within a feedlot pen. These methods will allow direct harvesting of VS for use as a recoverable energy source through direct combustion or cocombustion.

published proceedings

  • ISRN Renewable Energy

author list (cited authors)

  • Eigenberg, R. A., Woodbury, B. L., Auvermann, B. W., Parker, D. B., & Spiehs, M. J.

citation count

  • 0

complete list of authors

  • Eigenberg, Roger A||Woodbury, Bryan L||Auvermann, Brent W||Parker, David B||Spiehs, Mindy J

publication date

  • January 2012