Mary
Readings:
Conway, G. 1990. Concepts. Ch 2. In Agroecosystem analysis for research and concepts. Winrock Int. Inst. for Agriculture. Morrilton, AK.
Gliessman, S. 2004. Chapter 2, Agroecology and agroecosystems. In D. Rickerl and C. Francis, (ed.) Agroecosystems Analysis. American Society of Agronomy, Madison , WI .
Tuesday, 28 August Tools to Analyze Nutrient Balance of Crop/Livestock Systems
Jim
Assignment #1 assigned
Readings:
Koelsch, R. Lesson 2. Whole Farm Nutrient Planning. Livestock and Poultry Environmental Stewardship Curriculum. Midwest Plan Service
Thursday, 30 August Current Swine Production Systems
Readings:
Honeyman, M.S. 2005. Extensive bedded indoor and outdoor pig production systems in USA: current trends and effects on animal care and product quality. Livestock Production Science 94:15-24.
Honeyman, M.S. and M. Duffy. 2006. Iowas changing swine industry. ISU Animal Industry Report.
Honeyman. M.S., R.S. Pirog, G.H. Huber, P.J. Lammers, and J.R. Hermann. 2006. The United States pork niche market phenomenon. J. Anim. Sci. 84:2269-2275.
Tuesday, 4 September Current Dairy Production Systems
Leo Timms
Readings:
Brannstrom, A.J. 2006. Wisconsin modernization survey 2006. [Online]. Available at http://cdp.wisc.edu/pdf/Dairy%20Modernization%20Survey%202006.pdf (verified 9 August 2007).
Kriegl, T. 2007. Summary of economic studies of organic dairy farming in Wisconsin (7 years), New England, and Quebec. [Online]. Available at http://cdp.wisc.edu/pdf/Organic%20Econ%20in%20N%20E,%20Q,%20&%20W%207YrB.pdf (verified 9 August 2007).
Kriegl, T. and R. McNair. 2005. Pastures of plenty. [Online]. Available at http://cdp.wisc.edu/pdf/grzgfin1.pdf (verified 9 August 2007).
Jones, B.L. Cost for Wisconsin dairies using rotational grazing practices. [Online]. Available at http://cdp.wisc.edu/pdf/Grazing%20vs%20Conventional%20FarmingPostEditsSept7.pdf (verified 9 August 2007).
Assignment #1 due
Readings:
Anderson, R.V., R.J. Rasby, T.J. Klopfenstein, and R.T. Clark. 2005. An evaluation of production and economic efficiency of two beef systems from calving to slaughter. J. Anim. Sci. 2005:694-704.
Rueda, B.L., R.W. Blake, C.G. Nicholson, D.G. Fox, L.O. Tedeschi, A.N. Pell, E.C.M. Fernandez, J.F. Vallentine, and J.C. Carneiro. 2003. Production and economic potentials of cattle in pasture-based systems of the western Amazon region of Brazil. J. Anim. Sci. 81:2923-2937.
Tamminga, S. 2006. Environmental Impacts of Beef Cattle. In: The John M. Airy Symposium. Visions of Animal Agriculture and the Environment. Iowa State University, Ames, IA.
Rotz, C.A., Buckmaster, D.R., and J.W. Comerford. 2005. A beef herd model simulating feed intake, animal performance, and manure excretion in farm systems. J. Anim. Sci. 83:231-242.
Tuesday, 11 September Current grain industry
Mary
Readings:
Samson, F. and F. Knopf. 1994. Prairie conservation in North America. BioScience 44:418-421.
Bultena, G.L., M.D. Duffy, S.E. Jungst, R.S. Kanwar, B.W. Menzel, M.K. Misra, P. Singh, J.R. Thompson, A. van der Valk, and R.L. Willham. 1996. Effects of agricultural development on diversity: Lessons from Iowa. In J.P. Srivastava, N.J.H. Smith, D.A. Forno. Biodiversity and Agricultural Intensification. The World Bank.
Hoeft, R.G., E.D. Nafziger, R.R. Johnson, and S. R. Aldrich. 2000. Cropping decisions. p.43-59. In Modern corn and soybean production. MCSP Publications, Champaign, IL.
Thursday, 13 September Discussion
Students
Assignment 2 due
Readings:
Conner, D.S. 2004. Expressing values in agricultural markets: An economic policy perspective. Agriculture and Human Values 21: 27-35.
Hogberg, M.G., S.L. Fales, F.L. Kirschenmann, M.S. Honeyman, J. A. Miranowski, and P. Lasey. 2005. Interrelationships of animal agriculture, the environment, and rural communities. J. Anim,. Sci. (E. Suppl.) 83: E13-E17
Tuesday, 18 September Nitrogen cycling in cropping systems
Mary
Readings:
Charles, Daniel. 2005. Myths and miracles. In Master mind. HarperCollins Publishers, Inc. New York, NY.
Cavigelli, M.A., S.R. Deming, L.K. Probyn, and R.R. Harwood (ed.). 2000. Michigan Field Crop Ecology: Managing biological processes for productivity and environmental quality. Michigan State University Extension Bulletin E-2646, pp. 1-43.
Thursday, 20 September Managing nitrogen cycling in cropping systems
Mary
Readings:
Dinnes, D.L., D.L. Karlen, D.B. Jaynes, T.C. Kasper, J.L. Hatfield, T.S. Colvin, and C.A. Cambardella. 2002. Nitrogen management strategies to reduce nitrate leaching in tile-drained midwestern soils. Agron J. 94:153-171.
Burkart, M., D. James, M. Liebman, and C. Herndl. 2005. Impacts of integrated crop-livestock systems on nitrogen dynamics and soil erosion in western Iowa watersheds. J. of Geophysical Research, 110, G01009.
Sawyer, J., E. Nafziger, G. Randall, L. Bundy, G. Rehm, and B. Joern. 2006. Concepts and rationale for regional nitrogen rate guidelines for corn.. Pm 2015. ISU Extension.
DNR Manure Management Plan.. Appendix
Tuesday, 25 September Managing nitrogen cycling in livestock
Jim
Readings:
Van Kemp, T. and van Heugten, E. Lesson 10. Reducing the nutrient excretion and odor of pigs through nutritional means. Livestock and Poultry Environmental Stewardship Curriculum. Midwest Plan Service
Patterson, P. Lesson 11. Using dietary and management strategies to reduce the nutrient excretion of poultry. Livestock and Poultry Environmental Stewardship Curriculum. Midwest Plan Service
Grant, R. and S. Telega. Lesson 12. Feeding dairy cows to reduce nutrient excretion. Livestock and Poultry Environmental Stewardship Curriculum. Midwest Plan Service
Erickson, G. and T. Milton. Lesson 13. Using dietary strategies to reduce the nutrient excretion of feedlot cattle. Livestock and Poultry Environmental Stewardship Curriculum. Midwest Plan Service
Cowling, E.B. and J.N. Galloway. 2002. Challenges and Opportunities facing Animal Agriculture: Optimizing Nitrogen Management in the Atmosphere and Biosphere of the Earth. J. Anim. Sci 80(E. Suppl. 2) E157-E167.
Thursday, 27 September Managing nitrogen losses from manure
Jim
Readings:
Fulhage, C. and J. Hoehne. Lesson 20. Planning and evaluation of manure storage. Livestock and Poultry Environmental Stewardship Curriculum. Midwest Plan Service
Fulhage, C. and J. Hoehne. Lesson 21. Sizing manure storage, typical manure characteristics. Livestock and Poultry Environmental Stewardship Curriculum. Midwest Plan Service
Humenik, F. Lesson 25. Manure treatment options. Livestock and Poultry Environmental Stewardship Curriculum. Midwest Plan Service
Tuesday, 2 October Discussion
Students
Readings:
Rotz, C.A. 2004. Management to reduce nitrogen losses in animal production. J. Anim. Sci 82(E. Suppl.):E119-E137.
Thursday, 4 October Phosphorus cycling in cropping systems
Mary
Readings:
Mallarino, A.P., B.M. Stewart, J.L. Baker, J.A. Downing, and J. Sawyer. Background and basic concepts of the Iowa phosphorus index. NRCS Field Office Technical Note 25. [Online]. Available at http://www.ia.nrcs.usda.gov/Technical/Phosphorus/support.html, (verified 12 August 2007).
Tuesday, 9 October Managing phosphorus in livestock systems
Jim
Readings:
Klopfenstein et al. 2002. Animal Diet Modification to Decrease the Potential for Nitrogen and Phosphorus Pollution. CAST Issue Paper Number 21. Council for Agricultural Science and Technology, Ames, IA.
Thursday, 11 October Water cycling in crop and livestock systems
Mary and Jim
Readings:
Tuesday, 16 October Energy cycling in cropping systems
Mary
Readings:
Gliessman, S.R. 2006. The energetics of agroecosystems. In Agroecology: the ecology of sustainable food systems. 2nd ed. CRC Press .
Readings:
Heitschmidt, R.K., R.E. Short, and E.E. Grings. 1996. Ecosystems, Sustainability, and Animal Agriculture. J. Anim. Sci. 74:1395-1405.
Johnson, D., N. Marcillac, K. Hossner, and T.Westing. 2006. Potential for Altered Nutrient Input/Product Output and the Environmental Implications. In The John M. Airy Symposium. Visions of Animal Agriculture and the Environment. Iowa State University, Ames, IA.
Johnson, D.E., H.W. Phetteplace, and A.F. Seidl. Methane, nitrous oxide and carbon dioxide emissions from ruminant livestock production systems.
Students
Readings:
Thursday, 25 October Forage crop production
Mary
Readings:
Voisin: Part 1. The Grass pp. 7-66 In Grass Productivity. Island Press. Washington, D.C.
Tuesday, 30 October Managing grazing systems
Jim
Readings:
Voisin: Part 2. The Cow pp. 67-130 In Grass Productivity. Island Press. Washington, D.C.
Voisin: Part 3. Laws of Rational Grazing pp. 131-136 In Grass Productivity. Island Press. Washington, D.C.
Voisin: Part 4. Principles for the Conduct of Rational Grazing pp. 137-176 In Grass Productivity. Island Press. Washington, D.C.
Thursday, 1 November Potential of grazing-based livestock production systems
Jim
Readings:
Voisin: Part 5. Rational Grazing in Practice pp. 177-188 In Grass Productivity. Island Press. Washington, D.C.
Voisin: Part 6. Common Errors in Supposedly Rational Systems of Grazing. pp. 189-208 In Grass Productivity. Island Press. Washington, D.C.
Voisin: Part 8. Division of Pastures pp. 251-268 In Grass Productivity. Island Press. Washington, D.C.
McGuire, M.A. and M.K. McGuire. 2000. Conjugated linoleic acid (CLA): A ruminant fatty acid with beneficial effects on human health. Proceedings of the American Society of Animal Science.
Allen, V.G. and C.P. Brown. 2006. Using Grazing Animals to Restore Resilience in our Agricultural Systems. In The John M. Airy Symposium. Visions of Animal Agriculture and the Environment. Iowa State University, Ames, IA. (Copies provided).
Tuesday, 6 November Integrated crop and livestock production systems
John Lawrence
Readings:
Borts, L., G. May, and J.D. Lawrence. 2004. Diversified versus specialized swine and grain operations. Iowa State Univsersity Animal Industry Report, Ames, IA.
Thursday, 8 November Effects of ethanol production on energy and nutrient balance of agricultural systems
Allen Trenkle
Readings:
Elam, T. 2007. Fuel ethanol subsidies: an economic perspective.
Elam, T. 2007. 10 Food-based bio-fuel myths.
Tuesday, 13 November Managing the challenges of grazing-based livestock production systems
Jim
Readings:
Krueger, W.C. and M.S. Sanderson. 2002. Environmental Impacts of Livestock on U.S. Grazing Lands. CAST Issue Paper Number 22. Council for Agricultural Science and Technology. Ames, IA.
Heitschmidt, R.K., L.T. Vermeire, and E.E. Grings. 2004. Is rangeland agriculture sustainable? J. Anim. Sci. 82(Suppl. E):E138-E146.
Thursday, 15 November
Readings:
November 19-23 Thanksgiving break
Tuesday, 27 November
Class activity: Project reports
Thursday, 29 November
Class activity: Tour of ISU Dairy Farm with Leo Timms
Tuesday, 4 December
Class activity: Project reports
Thursday, 6 December Course Evaluation, reflection
Final: tentative Wed., 12 December, 9:45-11:45 a.m.