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References 1. Kansas State University (KSU) 2. Energy Center of Wisconsin, Energy Efficiency and Customer-Sited Renewable Energy, ECW Report Number 235-2, Oct. 2005 3. Scott Sanford, Univ. of Wisconsin Extension 4. Univ. of New Hampshire Cooperative Extension (2002) 5. Oregon State University (OSU) 6. Animal Production and Health Paper 78, Food & Agriculture Organization 7. Pennsylvania State University's (PSU) Agriculture and Biological Engineering Dept. 8. New York State Cooperative Extension Service 9. Pennsylvania State University (PSU) 10. University of Nebraska - Lincoln . | References 1. Kansas State University KSU 2. Energy Center of Wisconsin Energy Efficiency and Customer-Sited Renewable Energy ECW Report NUmber 235-2 Oct. 2005 3. Scott Sanford Univ. of Wisconsin Extension 4. Univ. of New Hampshire Cooperative Extension 2002 5. Oregon State University OSU 6. Animal Production and Health Paper 78 Food Agriculture Organization 7. Pennsylvania State University s PSU Agriculture and Biological Engineering Dept. 8. New York State Cooperative Extension Service 9. Pennsylvania State University PSU 10. University of Nebraska - .
