Tuesday, 8 November 2005: 7:55 AM
Convention Center,, Room 250E, Upper Level
139: Symposium--Environmental Impact of Strategies to Reduce Dietary Phosphorus
Sponsor:A05 Environmental Quality
Presiding:Rory Maguire, North Carolina State University
7:55 AM Introductory Remarks
8:00 AM139-1A Potpourri of Options to Reduce Phosphorus in Broiler Meat Production: Phytase, Electrolytes, Low Phytate Grain; Which Will Get the Job Done?. 
John Brake, NC State University, Peter Plumstead, NC State University, Rory Maguire, NC State University
8:25 AM139-2Impact of Dietary Phosphorus on Nutrient Management for Beef Feedlot Operations. 
Galen E. Erickson, University of Nebraska, Terry Klopfenstein, University of Nebraska, Rick Koelsch, University of Nebraska
8:50 AM139-3Phosphorus and Reproduction and Cow Performance in Dairy Cows. 
James D. Ferguson, University of Pennsylvania, School of Veterinary Medicine, Zhenxgia Dou, University of Pennsylvania, School of Veterinary Medicine, John Toth, University of Pennsylvania, School of Veterinary Medicine
9:15 AM139-4Effect of Dietary Phosphorus Content on Amount and Form of Phosphorus Excretion from Dairy Cows. 
Richard Kohn, Univ. of Maryland, Zhengxia Dou, University of Pennsylvania
9:40 AM Break
9:55 AM139-5Diet Impacts on Manure P Composition, Transformations and P Runoff Losses.
Brad Joern, Department of Agronomy, Brian Richert, Department of Animal Sciences, Purdue University, Todd Applegate, Department of Animal Sciences, Purdue University, Alan Sutton, Department of Animal Sciences, Purdue University, Christopher Baxter, University of Wisconsin-Platteville
10:20 AM139-6Water Quality Implications of the Links between Animal Nutrition and Phosphorus Speciation in Poultry and Dairy Manures.
J. Thomas Sims, University of Delaware
10:45 AM139-7Potential Impacts of Phytase in Swine Diets on Air, Water and Soil Quality. 
Douglas Smith, USDA-ARS, NSERL, Philip Moore Jr., USDA-ARS, PPPSRU, Charles V. Maxwell, University of Arkansas
11:10 AM139-8Diet Modification to Reduce Phosphorus Surpluses: a Mass Balance Approach.
Rory Maguire, NC State University, David A. Crouse, North Carolina State University
11:35 AM Discussion
11:45 AM Adjourn

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