Review: Ammonia emissions from dairy farms and beef feedlots

Canadian Journal of Animal Science

Volumn 91, Issue 1, 2011, Pages 1-35

  Hristov, A N ^a   Hanigan, M ^b   Cole, A ^c   Todd, R ^c   McAllister, T A ^d   Ndegwa, P M ^e   Rotz, A ^f  

^a PENNSYLVANIA STATE UNIVERSITY   (United States)

^b VIRGINIA POLYTECHNIC INSTITUTE AND STATE UNIVERSITY   (United States)

^c Agriculture Research Service   (United States)

^d LETHBRIDGE RESEARCH CENTRE   (Canada)

^e WASHINGTON STATE UNIVERSITY   (United States)

^f AGRICULTURAL RESEARCH SERVICE   (United States)

Author keywords

Ammonia emission; Beef cattle; Dairy cow; Manure; Mitigation

Indexed keywords

ANIMALIA; BOS;

EID: 79953748951     PISSN: 00083984     EISSN: 19181825     Source Type: Journal    
DOI: 10.4141/CJAS10034     Document Type: Review

References (286)

1. Adams, J. R., Farran, T. B., Erickson, G. E., Klopfenstein, T. J., Macken, C. N. and Wilson, C. B. 2004. Effect of organic matter addition to the pen surface and pen cleaning frequency on nitrogen mass balance in open feedlots. J. Anim. Sci. 82: 2153-2163.
2. Agle, M., Hristov, A. N., Zaman, S., Schneider, C, Ndegwa, P. M. and Vaddella, V. K. 2010a. Effect of dietary concentrate on rumen fermentation, digestibility, and nitrogen losses in dairy cows. J. Dairy Sci. 93:4211-4222.
3. Agle, M., Hristov, A. N., Zaman, S., Schneider, C, Ndegwa, P. M. and Vaddella, V. K. 2010b. Effects of ruminally degraded protein on rumen fermentation and ammonia losses from manure in dairy cows. J. Dairy Sci. 93:1625-1637.
4. 15N and estimation of nitrogen losses from dairy manure during storage by mass balance and nitrogen to phosphorus ratio. J. Dairy Sci 91 (E. Suppl. 1):255.
5. 4 from dairy cows housed in a farmyard manure tying stall (housing, manure storage, manure spreading). Nutr. Cycl. Agroecost. 60:103-113.
6. Appuhamy, J. A. D. R. N., Bray, C. T., Escobar, J. and Hanigan, M. D. 2009. Effects of acetate and essential amino acids on protein synthesis signaling in bovine mammary epithelial cells in-vitro. J. Dairy Sci. 92 (E. Suppl. 1):44.
7. Arogo, J., Westerman, P. W., Heber, A. J., Robarge, W. P. and Classen, J. J. 2001. Ammonia emissions from animal feeding operations. In White Papers on Animal Agriculture and the Environment. National Center for Manure and Animal Waste Management, North Carolina State Univ., Raleigh, NC. [Online]. Available: http://www.cals.ncsu.edu/waste_mgt/natlcenter/whitepapersummaries/ammoni aemissions.pdf http://www.cals.ncsu.edu/waste_mgt/natlcenter/summary.pdf [2010 Apr. 08].
8. Asman, W. A. H. 1992. Ammonia emissions in Europe: Updated emission and emission variations. National Institute of Public Health and Environmental Protection., Bilthoven, the Netherlands.
9. Baek, B. H., Koziel, J. A., Spinhirne, J., Parker, D. B. and Cole, N. A. 2003. Estimation of ammonia and hydrogen sulfide fluxes from cattle feedlot surfaces in Texas High Plains. In Proc. 3rd Int. Conf. on Air Pollution from Agricultural Operations, Oct. 12-15, 2003, Raleigh, NC. ASAE, St. Joseph, MI.
10. Baek, B. H., Todd, R. W., Cole, N. A. and Koziel, J. A. 2005. Ammonia and hydrogen sulfide flux and dry deposition velocity estimates using vertical gradient method at a commercial beef cattle feedlot. In P. Nowak, ed. Proc. Symp. State of the Science Animal Manure and Waste Management, 2005 Jan. 5-7, San Antonio, TX. [Online]. Available http://www.cals.ncsu.edu/waste_mgt/natlcenter/sanantonio/Baek.pdf [2010 Apr. 08].
11. Baek, B. H., Todd, R. W., Cole, N. A. and Koziel, J. A. 2006. Ammonia and hydrogen sulphide flux and dry deposition velocity estimates using vertical gradient method at a commercial beef cattle feedlot. Int. J. Global Environ. Iss. 6: 189-203.
12. Baker, D. H. 1996. Advances in amino acid nutrition and metabolism of swine and poultry. Pages 41-51 in E. T. Kornegay, ed. Nutrient management of food animals to enhance and protect the environment. CRC Lewis Publishers, Boca Raton, FL.
13. Barak, P., Molina, J. A. E., Hadas, A. and Clapp, C. E. 1990. Mineralization of amino acids and evidence of direct assimilation of organic nitrogen. Soil Sci. Soc. Am. J. 54:769-774.
14. 15N mirror image study with leucine and glycine. Soil Biol. 29:101-108.
15. Battye, R., Battye, W., Overcash, C. and Fudge, S. 1994. Development and selection of ammonia emission factors - Final Report. EPA contract # 68-D3-0034. U.S. EPA, Office of Research and Development, Washington, DC.
16. Baum, K. A. and Ham, J. M. 2009. Adaptation of a speciation sampling cartridge for measuring ammonia flux from cattle feedlots using relaxed eddy accumulation. Atmos. Environ. 43: 1753-1759.
17. Beauchamp, E. G., Kidd, G. E. and Thurtell, G. 1978. Ammonia volatilization from sewage sludge applied in the field. J. Environ. Qual. 7:141-146.
18. Bell, A. L., Appuhamy, J. A. D. R. N., Escobar, J. and Hanigan, M. D. 2009. Insulin and essential amino acids have significant but independent effects on protein synthesis signaling in bovine mammary epithelial cells in-vitro. J. Dairy Sci. 92 (E. Suppl. 1):472.
19. Bequette, B. J., Hanigan, M. D., Lapierre, H. and D'Mello, J. P. F. 2003. Mammary uptake and metabolism of amino acids by lactating ruminants. Pages 347-365 in Amino acids in farm animal nutrition. 2nd ed. CABI Publishing, Wallingford, UK.
20. Berntsen, J., Peterson, B. M., Jacobsen, B. H., Olesen, J. E. and Hutchings, N. J. 2003. Evaluating nitrogen taxation scenarios using the dynamic whole farm simulation model FASSET. Agric. Syst. 76:817-839
21. Berry, N. R., Jewell, P. L., Sutter, F., Edwards, P. J. and Kreuzer, M. 2001. Effect of concentrate on nitrogen turnover and excretion of P, K, Na, Ca and Mg in lactating cows rotationally grazed at high altitude. Livest. Prod. Sci. 71: 261-275.
22. Bierman, S., Erickson, G. E., Klopfenstein, T. J., Stock, R. A. and Shain, D. H. 1999. Evaluation of nitrogen and organic matter balance in the feedlot as affected by level and source of dietary fiber. J. Anim. Sci. 77:1645-1653.
23. Bjorneberg, D. L., Leytem, A. B., Westermann, D. T., Griffiths, P. R., Shao, L. and Pollard, M. J. 2009. Measurement of atmospheric ammonia, methane, and nitrous oxide at a concentrated dairy production facility in southern idaho using open-path FTIR spectrometry. Trans. ASABE 52:1749-1756.
24. Blanes-Vidal, V., Sommer, S. G. and Nadimi, E. S. 2009. Modelling surface pH and emissions of hydrogen sulphide, ammonia, acetic acid and carbon dioxide from a pig waste lagoon. Biosyst. Eng. 104:510-521.
25. Blouin, J. P., Bernier, J. F., Reynolds, C. K., Lobley, G. E., Dubreuil, P. and Lapierre, H. 2002. Effect of supply of metabolizable protein on splanchnic fluxes of nutrients and hormones in lactating dairy cows. J. Dairy Sci. 85:2618-2630.
26. Bluteau, C. V., Masse, D. I. and Leduc, R. 2009. Ammonia emission rates from dairy livestock buildings in Eastern Canada. Biosyst. Eng. 103:480-488.
27. Braam, C. R., Ketelaars, J. J. M. H. and Smits, M. C. J. 1997. Effects of floor design and floor cleaning on ammonia emission from cubicle houses for dairy cows. Neth. J. Agric. Sci. 45: 49-64.
28. Bristow, A. W., Whitehead, D. C. and Cockburn, J. E. 1992. Nitrogenous constituents in the urine of cattle, sheep, and goats. J. Sci. Food Agric. 59:387-394.
29. Broderick, G. A. 2003. Effects of varying dietary protein and energy levels on the production of lactating dairy cows. J. Dairy Sci. 86:1370-1381.
30. Broderick, G. A. 2005. Protein and carbohydrate nutrition of dairy cows. Pages 35-56 in Proceedings, Pacific Northwest Animal Nutrition Conference, Boise, ID.
31. Broderick, G. A., Stevenson, M. J., Patton, R. A., Lobos, N. E. and Olmos Colmenero, J. J. 2008. Effect of supplementing rumen-protected methionine on production and nitrogen excretion in lactating dairy cows. J. Dairy Sci. 91:1092-1102.
32. Bussink, D. W. and Oenema, O. 1998. Ammonia volatilization from dairy farming systems in temperate areas:a review. Nutr. Cycl. Agroecosyst. 51:19-33.
33. Bussink, D. W., Harper, L. A. and Corre, W. J. 1996. Ammonia transport in a temperate grassland:II. Diurnal fluctuations in response to weather and management conditions. Agron. J. 88:621-626.
34. Cabrera, V. E., Breuer, N. E., Hildebrand, P. E. and Letson, D. 2005. The dynamic North Florida dairy farm model:a user-friendly computerized tool for increasing profits while minimizing N leaching under varying climatic conditions. Comput. Electron. Agric. 49:286-308.
35. Campbell, G. S. and Norman, J. M. 1998. An introduction to environmental biophysics. 2nd ed, Springer-Verlag, New York, NY.
36. Casey, K. D., Bicudo, J. R., Schmidt, D. R., Singh, A., Gay, S. W., Gates, R. S., Jacobson, L. D. and Hoff, S. J. 2006. Air quality and emissions from livestock and poultry production/waste management systems. Pages 1-40 in J. M. Rice, D. F. Caldwell, and F. J. Humenik, eds. Animal agriculture and the environment:National Center for Manure and Animal Waste Management White Papers. 2006. ASABE Publications, St. Joseph, MI.
37. Cassel, T., Ashbaugh, L. and Flocchini, R. 2005a. Ammonia emission factors for open-lot dairies:Direct measurements and estimation by nitrogen intake. J. Air Waste Manage. Assoc. 55:826-833.
38. Cassel, T., Ashbaugh, L. and Flocchini, R. 2005b. Ammonia flux from open-lot dairies:Development of measurement methodology and emission factors. J. Air Waste Manage. Assoc. 55:816-825.
39. Cole, N. A. and Todd, R. W. 2009. Nitrogen and phosphorus balance of beef cattle feedyards. Pages 17-24 in E. Jordan, ed. Proceedings of the Texas Animal Manure Management Issues Conference, Sept. 29-30. Round Rock, TX
40. Cole, N. A., Brown, M. S. and MacDonald, J. C. 2008. Environmental considerations of feeding bio-fuel co-products. J. Anim. Sci. 86 (E. Suppl. 2):157 (Abstr.).
41. Cole, N. A., Clark, R. N., Todd, R. W., Richardson, C. R., Gueye, A., Green, L. W. and McBride, K. 2005. Influence of dietary crude protein concentration and source on potential ammonia emissions from beef cattle manure. J. Anim. Sci. 83: 722-731.
42. Cole, N. A., Defoor, P. J., Galyean, M. L., Duff, G. C. and Gleghorn, J. F. 2006. Effects of phase-feeding of crude protein on performance, carcass characteristics, serum urea nitrogen concentrations and manure nitrogen of finishing beef steers. J. Anim. Sci. 84:3421-3432.
43. Cole, N. A., Mason, A. M., Todd, R. W. and Parker, D. B. 2009a. Effects of urine application on chemistry of feedlot pen surfaces. J. Anim. Sci. 87 (E. Suppl. 2):148 (Abstr.).
44. Cole, N. A., Mason, A. M., Todd, R. W., Rhoades, M. and Parker, D. B. 2009b. Chemical composition of pen surface layers of beef cattle feedyards. Prof. Anim. Sci. 25:541-552.
45. Cole, N. A., Todd, R. W. and Parker, D. B. 2007a. Use of fat and zeolite to reduce ammonia emissions from beef cattle feedyards. In Proceedings, International Symposium on Air Quality and Waste Management for Agriculture, Sept. 16-19, Broomfield, CO. ASABE Publication 701P0907cd.
46. Cole, N. A., Todd, R. W., Parker, D. B. and Rhoades, M. B. 2007b. Challenges in using flux chambers to measure ammonia emissions from simulated feedlot pen surfaces and retention ponds. In Proceedings, International Symposium on Air Quality and Waste Management for Agriculture, Sept. 16-19, Broomfield, CO. ASABE Publication 701P0907cd.
47. Cyriac, J., Rius, A. G., McGilliard, M. L., Pearson, R. E., Bequette, B. J. and Hanigan, M. D. 2008. Lactation performance of mid-lactation dairy cows fed ruminally degradable protein at concentrations lower than National Research Council recommendations. J. Dairy Sci. 91:4704-4713.
48. Cyriac, J., Rius, A. G., Appuhamy, J. A. D. R. N., Pearson R. E., Herbein, J. H., Knowlton, K. F., Firkins, J. L. and Hanigan, M. D. 2009. Varying ruminally degradable protein concentrations in the lactating dairy cow diets maintains rumen fiber digestion and outflow of nutrients. J. Dairy Sci. 92 (E. Suppl. 1):1.
49. Dammgen, U. and Hutchings, N. J. 2008. Emissions of gaseous nitrogen species from manure management:A new approach. Environ. Pollut. 154:488-497.
50. de Boer, I. J. M., Smits, M. C. J., Mollenhorst, H., van Duinkerkern, G. and Monteny, G. J. 2002. Prediction of ammonia emissions from dairy barns using feeds characteristics Part I:Relation between feed characteristics and urinary urea concentration. J. Dairy Sci. 85:3382-3388.
51. de Haro Marti, M. E., Sheffield, R. E. and Chahine, M. 2007. Emissions from a dairy wastewater storage pond, manure processing area, and composting yard in south-central Idaho. International Symposium on Air Quality and Waste Management for Agriculture. CD-Rom Proceedings of the 16-19 September 2007 Conference (Broomfield, Colorado). Publication date 16, September 2007. ASABE Publication Number 701P0907cdASABE Paper No. 701P0907. ASABE, St. Joseph, MI.
52. Del Grosso, S. J., Wirth, T., Ogle, S. M. and Parton, W. J. 2008. Estimating agricultural nitrous oxide emissions. EOS, Transactions, Am. Geophys. Union 89:529-530.
53. Demmers, T. G. M., Burgess, L. R., Short, J. L., Phillips, V. R., Clark, J. A. and Wathes, C. M. 1998. First experiences with methods to measure ammonia emissions from naturally ventilated cattle buildings in the U.K. Atmos. Environ. 32: 285-293.
54. Denmead, O. T., Simpson, J. R. and Freney, J. R. 1974. Ammonia flux into the atmosphere from a grazed pasture. Science 185:609-610.
55. Denmead, O. T., Harper, L. A., Freney, J. R., Griffith D. W. T., Leuning, R. and Sharpe, R. R. 1998. A mass balance method for non-intrusive measurements of surface-air trace gas exchange. Atmos. Environ. 32:3679-3688.
56. Denmead, O. T., Nulsen, R. and Thurtell, G. W. 1978. Ammonia exchange over a corn crop. Soil Sci. Soc. Am. J. 42:840-842.
57. Denmead, O. T., Simpson, J. R. and Freney, J. R. 1977. A direct field measurement of ammonia emission after injection of anhydrous ammonia. Soil. Sci. Soc. Am. J. 41:1001-1004.
58. Dewes, T. 1996. Effect of pH, temperature, amount of litter and storage density on ammonia emissions from stable manure. J. Agric. Sci. 127:501-509.
59. Doepel, L., Pacheco, D., Kennelly, J. J., Hanigan, M. D., Lopez, I. F. and Lapierre, H. 2004. Milk protein synthesis as a function of amino acid supply. J. Dairy Sci. 87:1279-1297.
60. Eghball, B., Power, J. F., Gilley, J. E. and Doran, J. W. 1997. Nutrient, carbon, and mass loss during composting of beef cattle feedlot manure. J. Environ. Qual. 26:189-193.
61. 4) from a dairy hardstanding in the UK. Nutr. Cycl. Agroecosyst. 60:115-122.
62. Erickson, G. E., Klopfenstein, T. J. and Milton, C. T. 2000. Dietary protein effects on nitrogen excretion and volatilization in open-dirt feedlots. Pages 297-304 in J. A. Moore, ed. Proceedings, 8th International Symposium on Animal, Agricultural and Food Processing Wastes. Des Moines, IA. 12-15 Oct. ASAE Publications, St. Joseph, MI.
63. Farran, T. B., Erickson, G. E., Klopfenstein, T. J., Macken, C. N. and Lindquist, R. U. 2006. Wet corn gluten feed and alfalfa hay levels in dry-rolled corn finishing diets:Effects on finishing performance and feedlot nitrogen mass balance. J. Anim. Sci. 84:1205-1214.
64. Flesch, T. K. and Wilson, J. D. 2005. Estimating tracer emissions with a backward Lagrangian stochastic technique. Pages 513-531 in M. K. Viney, ed. Micrometeorology in agricultural systems. Agronomy no. 47. ASA, CSA, SSSA, Madison, WI.
65. Flesch, T. K., Harper, L. A., Powell, J. M. and Wilson, J. D. 2009. Inverse-dispersion calculation of ammonia emissions from Wisconsin dairy farms. Trans. ASABE 52:253-265.
66. Flesch, T. K., Prueger, J. H. and Hatfield, J. L. 2002. Turbulent Schmidt number from a tracer experiment. Agric. Forest. Meteorol. 111:299-307.
67. Flesch, T. K., Wilson, J. D. and Yee, E. 1995. Backward-time Lagrangian stochastic dispersion models and their application to estimate gaseous emissions. J. Appl. Meteorol. 34: 1320-1332.
68. Flesch, T. K., Wilson, J. D., Harper, L. A., Todd, R. W. and Cole, N. A. 2007. Determining ammonia emissions from a cattle feedlot with an inverse dispersion technique. Agric. Forest. Meteorol. 144:139-155.
69. Fowler, D., Coyle, M., Flechard, C, Hargreaves, K., Nemitz, E., Storeton-West, R., Sutton, M. and Erisman, J.-W. 2001. Advances in micrometeorological methods for the measurement and interpretation of gas and particle nitrogen fluxes. Plant Soil 228:117-129.
70. Frank, B. and Swensson, C. 2002. Relationship between content of crude protein in rations for dairy cows and milk yield, concentration of urea in milk and ammonia emissions. J. Dairy Sci. 85:1829-1838.
71. Frank, B., Persson, M. and Gustafsson, G. 2002. Feeding dairy cows for decreased ammonia emission. Livest. Prod. Sci. 76: 171-179.
72. Galle, B., Klemedtsson, L., Bergqvist, B., Ferm, M., Tornqvist, K., Griffith, D. W. T., Jensen, N.-O. and Hansen, F. 2000. Measurements of ammonia emissions from spreading of manure using gradient FTIR techniques. Atmos. Environ. 34:4907-4915.
73. 4 emissions. Agric. Forest. Meteorol. 149:1516-1523.
74. Gay, S. W., Schmidt, D. R., Clanton, C. J., Janni, K. A., Jacobson, L. D. and Weisberg, S. 2003. Odor, total reduced sulfur, and ammonia emissions from animal housing facilities and manure storage units in Minnesota. Appl. Eng. Agric. 19: 347-360.
75. Gilbertson, C. B., McCalla, T. M., Ellis, J. R., Cross, O. E. and Woods, W. R. 1970. The effect of animal density and surface slope on characteristics of runoff, solid wastes and nitrate movement on unpaved beef feedlots. Beef Feedlot Waste: NE Agric. Exp. Stat. Bull. # 508.
76. Gozho, G. N., Hobin, M. R. and Mutsvangwa, T. 2008. Interactions between barley grain processing and source of supplemental dietary fat on nitrogen metabolism and urea-nitrogen recycling in dairy cows. J. Dairy Sci. 91:247-259.
77. 2 using dual beam FTIR spectroscopy and the fux-gradient technique. Atmos. Environ. 34:1087-1098.
78. Grimma, J. W. and Lynch, J. A. 2005. Improved daily precipitation nitrate and ammonium concentration models for the Chesapeake Bay Watershed. Environ. Pollut. 135: 445-455.
79. Groff, E. B. and Wu, Z. 2005. Milk production and nitrogen excretion of dairy cows fed different amounts of protein and varying proportions of alfalfa and corn silage. J. Dairy Sci. 88: 3619-3632.
80. Groot Koerkamp, P. W. G., Metz, J. H. M., Uenk, G. H., Phillips, V. R., Holden, M. R., Sneath, R. W., Short, J. L., White, R. P., Hartung, J., Seedorf, J., Schroder, M., Linkert, K. H, Pedersen, S., Takai, H., Johnsen, J. O. and Wathes, C. M. 1998. Concentrations and emissions of ammonia in livestock buildings in northern Europe. J. Agric. Eng. Res. 70: 79-95.
81. Gustafson, G. M. and Olsson, I. 2004. Partitioning of nutrient and trace elements in feed between body retention, faeces and urine by growing dairy-breed steers. Acta Agric. Scand. Sect. A, Anim. Sci. 54:10-19.
82. Hanigan, M. D. 2005. Quantitative aspects of ruminant splanchnic metabolism as related to predicting animal performance. Anim. Sci. 80:23-32.
83. Hanigan, M. D., Cant, J. P., Weakley, D. C. and Beckett, J. L. 1998. An evaluation of postabsorptive protein and amino acid metabolism in the lactating dairy cow. J. Dairy Sci. 81: 3385-3401.
84. Harper, L. A. 2005. Ammonia:Measurement issues. Pages 345-380 in J. L. Hatfield and J. M. Baker, eds. Micrometeorology in agricultural systems. Agronomy Monogr. 47. ASA, CSSA, and SSSA, Madison, WI.
85. Harper, L. A. and Sharpe, R. R. 1995. Nitrogen dynamics in irrigated corn:soil-plant nitrogen and atmospheric ammonia transport. Agron. J. 87:669-675.
86. Harper, L. A., Flesch, T. K., Powell, J. M., Coblentz, W. K., Jokela, W. E. and Martin, N. P. 2009. Ammonia emissions from dairy production in Wisconsin. J. Dairy Sci. 92: 2326-2337.
87. Harper, L. A., Sharpe, R. R. and Parkin, T. B. 2000. Gaseous nitrogen emissions from anaerobic swine lagoons:Ammonia, nitrous oxide and dinitrogen gas. J. Environ. Qual. 29: 1356-1365.
88. Harper, L. A., Sharpe, R. R., Parkin, T. B., De Visscher, A., van Cleemput, O. and Byers, F. M. 2004. Nitrogen cycling through swine production systems:ammonia, dinitrogen, and nitrous oxide emissions. J. Environ. Qual. 33:1189-1201.
89. Hartung, J. and Phillips, V. R. 1994. Control of gaseous emissions from livestock buildings and manure stores. J. Agric. Eng. Res. 57:173-189.
90. Hashimoto, A. and Ludington, D. 1971. Ammonia desorption from concentrated chicken manure slurries. Pages 117-121 in Livestock waste management and pollution abatement. Proceedings, International Symposium on Livestock Wastes. Apr. 19-22, Columbus, OH. ASABE, St. Joseph, MI.
91. Haslam, R., Hershey, L. and Keen, R. 1924. Effect of gas velocity and temperature on rate of absorption. Ind. Eng. Chem. 16:1224-1230.
92. 15N natural abundance in soil-plant systems. New Phytol. 137:179-203.
93. Hollmann, M., Knowlton, K. F. and Hanigan, M. D. 2008. Evaluation of solids, nitrogen, and phosphorus excretion models for lactating dairy cows. J. Dairy Sci. 91:1245-1257.
94. Horton, H. R., Moran, L. A., Ochs, R. S., Rawn, J. D. and Scrimgeour, K. G. 1992. Pages 17.1-19.26 in Principles of biochemistry (International edition). Neil Patterson Publishers, Prentice Hall, Englewood Cliffs, NJ.
95. 2.5 in the United States. J. Dairy Sci. (in press).
96. Hristov, A. N. and Huhtanen, P. 2008. Nitrogen efficiency in Holstein cows and dietary means to mitigate nitrogen losses from dairy operations. Pages 125-136 in Proceedings, Cornell Nutrition Conference, Syracuse, NY, Oct. 21-23.
97. Hristov, A. N. and Jouany, J.-P. 2005. Factors affecting the efficiency of nitrogen utilization in the rumen. Pages 117-166 in E. Pfeffer, E. and A. N. Hristov, eds. Nitrogen and phosphorus nutrition of cattle:reducing the environmental impact of cattle operations. CAB International, Wallingford, UK.
98. 15N abundance in cattle manure in relation to cumulative ammonia losses. J. Dairy Sci. 89 (Suppl. 1):357 (Abstr.).
99. Hristov, A. N., Etter, R. P., Ropp, J. K. and Grandeen, K. L. 2004. Effect of dietary crude protein level and degradability on ruminal fermentation and nitrogen utilization in lactating dairy cows. J. Anim. Sci. 82:3219-3229.
100. Hristov, A. N., Hazen, W. and Ellsworth, J. W. 2006b. Efficiency of use of imported nitrogen, phosphorus, and potassium and potential for reducing phosphorus imports on Idaho dairy farms. J. Dairy Sci. 89:3702-3712.
101. Hristov, A. N., Zaman, S., Vander Pol, M., Ndegwa, P., Campbell, L. and Silva, S. 2009. Nitrogen losses from dairy manure estimated through nitrogen mass balance or using markers. J. Environ. Qual. 38:2438-2448.
102. Huhtanen, P. and Hristov, A. N. 2009. A meta-analysis of the effects of protein concentration and degradability on milk protein yield and milk N efficiency in dairy cows. J. Dairy Sci. 92:3222-3232.
103. Huhtanen, P., Nousiainen, J. I., Rinne, M., Kytola, K. and Khalili, H. 2008. Utilization and partition of dietary nitrogen in dairy cows fed grass silage-based diets. J. Dairy Sci. 91: 3589-3599.
104. Hutchings, N. J., Petersen, B. M., Kristensen, I. S., Detlefsen, N. and Jørgensen, M. S. 2005. An internet-based tool for use in assessing the likely effect of intensification on losses of nitrogen to the environment. Page 918 in F. P. O'Mara, R. J. Wilkins, L. 't Mannetje, D. K. Lovett, P. A. M. Rogers, and T. M. Boland, eds. XX International Grassland Congress: Offered papers. Wageningen Academic Publishers. Wageningen, the Netherlands.
105. Hutchings, N. J., Sommer, S. G. and Jarvis, S. C. 1996. A model of ammonia volatilization from a grazing livestock farm. Atmos. Environ. 30:589-599.
106. Hutchinson, G. L. and Viets, F. G. 1969. Nitrogen enrichment of surface waters by absorption of ammonia volatilized from cattle feedlots. Science 166:514-515.
107. Hutchinson, G. L., Mosier, A. R. and Andre, C. E. 1982. Ammonia and amine emissions from a large cattle feedlot. J. Environ. Qual. 11:288-293.
108. Inbar, Y., Hadar, Y. and Chen, Y. 1993. Recycling of cattle manure:The composting process and characterization of maturity. J. Environ. Qual. 22:857-863.
109. Incropera, F. P. 2006. Fundamentals of heat and mass transfer. 6th ed, John Wiley & Sons, Hoboken, NJ.
110. IPCC. 2006. 2006 IPCC guidelines for national greenhouse gas inventories. Prepared by the National Greenhouse Gas Inventories Programme, H. S. Eggleston, L. Buendia, K. Miwa, T. Ngara, and K. Tanabe, eds. Published IGES, Japan. [Online] Available:http://www.ipcc-nggip.iges.or.jp/public/2006gl/index.html [2010 Apr. 08].
111. Ipharraguerre, I. R. and Clark, J. H. 2005. Impacts of the source and amount of crude protein on the intestinal supply of nitrogen fractions and performance of dairy cows. J. Dairy Sci. 88 (Suppl. 1):E22-E37.
112. James, T., Freitas, N., Ashbaugh, L. and Meyer, D. 1997. Field estimates of ammonia volatilization from cattle production facilities. Pages 259-267 in Emission inventory:planning for the future:Proceedings of a Specialty Conference, Research Triangle, NC. 1997 Oct. 28-30. AWMA, Pittsburgh, PA.
113. James, T., Meyer, D., Esparza, E., Depeters, E. J. and Perez-Monti, H. 1999. Effects of dietary nitrogen manipulation on ammonia volatilization from manure from Holstein heifers. J. Dairy Sci. 82:2430-2439.
114. Jarvis, S. C. and Ledgard, S. 2002. Ammonia emissions from intensive dairying:a comparison of contrasting systems in the United Kingdom and New Zealand. Agric. Ecosyst. Environ. 92:83-92.
115. Jeyapalan, A. S., Orellana, R. A., Suryawan, A., O'Connor, P. M. J., Nguyen, H. V., Escobar, J., Frank, J. W. and Davis, T. A. 2007. Glucose stimulates protein synthesis in skeletal muscle of neonatal pigs through an AMPK- and mTOR-independent process. Am. J. Physiol. Endocrinol. Metab. 293: E595-603.
116. Jones, M. L., Liehr, S. K., Classen, J. J. and Robarge, W. 2000. Mechanisms of dinitrogen formation in anaerobic lagoons. Adv. Environ. Res. 4:133-139.
117. Kaminskaia, N. V. and Kostic, N. M. 1997. Kinetics and mechanism of urea hydrolysis catalyzed by palladium (II) complexes. Inorg. Chem. 36:5917-5926.
118. Karr, J. D., Showers, W. J., Gilliam, J. W. and Andres, A. S. 2001. Tracing nitrate transport and environmental impact from intensive swine farming using delta nitrogen-15. J. Environ. Qual. 30:1163-1175.
119. Karr, J. D., Showers, W. J. and Jennings, G. D. 2003. Low-level nitrate export from confined dairy farming detected in North Carolina streams using 515N. Agric. Ecosyst. Environ. 95:103-110.
120. Kebreab, E., France, J., Mills, J. A. N., Allison, R. and Dijkstra, J. 2002. A dynamic model of N metabolism in the lactating dairy cow and an assessment of impact of N excretion on the environment. J. Anim. Sci. 80:248-259.
121. Keliher, F. M., Reisinger, A. R., Martin, R. J., Harvey, M. J., Price, S. J. and Sherlock, R. R. 2002. Measuring nitrous oxide emission rate from grazed pasture using Fourier-transform infrared spectroscopy in the nocturnal boundary layer. Agric. Forest. Meteorol. 111:29-38.
122. Kellems, R. O., Miner, J. R. and Church, D. C. 1979. Effect of ration, waste composition, and length of storage on the volatilization of ammonia, hydrogen sulfide and odors from cattle waste. J. Anim. Sci. 48:436-445.
123. Kendall, C. 1998. Tracing nitrogen sources and cycling in catchments. Pages 519-576 in C. Kendall and J. J. McDonnell, eds. Isotope tracers in catchment hydrology. Elsevier Science B.V., Amsterdam, the Netherlands.
124. Kerley, S. J. and Jarvis, S. C. 1996. Preliminary studies of the impact of excreted N on cycling and uptake of N in pasture systems using natural abundance stable isotopic discrimination. Plant Soil 178:287-294.
125. Kirk, G. J. D. and Nye, P. H. 1991. A model of ammonia volatilization from applied urea. V. The effects of steady-state drainage and evaporation. J. Soil Sci. 42:103-113.
126. Kohn, R. A., Dou, Z., Ferguson, J. D. and Boston, R. C. 1997. A sensitivity analysis of nitrogen losses from dairy farms. J. Environ. Manage. 50:417-428.
127. Koziel, J. A. 2003. Comparison of ammonia and hydrogen sulfide mass emission rates from artificial cattle feedlot surfaces using two designs of isolation flux chambers. CIGR International Symposium on Gaseous and Odour Emissions from Animal Production Facilities. Horsens, Denmark, June 2003.
128. Krober, T. F., Kulling, D. R., Menzi, H., Sutter, F. and Kreuzer, M. 2000. Quantitative effects of feed protein reduction and methionine on nitrogen use by cows and nitrogen emission from slurry. J. Dairy Sci. 83:2941-2951.
129. Kulling, D. R., Menzi, H., Krober, T. F., Neftel, A., Sutter, F., Lischer, P. and Kreuzer, M. 2001. Emissions of ammonia, nitrous oxide and methane from different types of dairy manure during storage as affected by dietary protein content. J. Agric. Sci. (Camb.) 137:235-250.
130. Langford, A. O., Fehsenfeld, F. C, Zachariassen, J. and Schimel, D. S. 1992. Gaseous ammonia fluxes and background concentrations in terrestrial ecosystems of the United States. Global Biogeochem. Cycles 6:459-483.
131. Lapierre, H. and Lobley, G. E. 2001. Nitrogen recycling in the ruminant:A review. J. Dairy Sci. 84 (E. Suppl.):E223-E236.
132. Lapierre, H., Pacheco, D., Berthiaume, R., Ouellet, D. R., Schwab, C. G., Dubreuil, P., Holtrop G. and Lobley, G. E. 2006. What is the true supply of amino acids for a dairy cow? J. Dairy Sci. 89 (E. Suppl.):E1-E14.
133. Laubach, J. and Kelliher, F. M. 2004. Measuring methane emission rates of a dairy cow herd by two micrometeorological methods. Agric. Forest. Meteorol. 125:279-303.
134. Laubach, J. and Kelliher, F. M. 2005. Measuring methane emission rates of a dairy cow herd (II): results from a backward-Lagrangian stochastic model. Agric. Forest. Meteorol. 129:137-150.
135. Lee, C. and Hristov, A. N. 2010a. Origin of ammonia nitrogen volatilized from dairy manure. J. Dairy Sci. 93 (Suppl. 1):691 (Abstr.).
136. Lee, C. and Hristov, A. N. 2010b. Effects of dietary protein concentration and coconut oil supplementation on nitrogen utilization in dairy cows. J. Dairy Sci. 93 (Suppl. 1):235 (Abstr.).
137. Lee, C, Hristov, A. N. and Silva, S. 2009. Effect of ammonia volatilization on manure nitrogen isotope composition. J. Dairy Sci. 92 (Suppl. 1):146 (Abstr.).
138. Lee, C, Hristov, A. N., Dell, C, Feyereisen, G., Kaye, J. and Beegle, D. 2010. Effect of dietary protein on ammonia emission from dairy manure. J. Dairy Sci. 93 (Suppl. 1):690 (Abstr.).
139. Li, L., Cyriac, J., Knowlton, K. F., Marr, L. C, Gay, S. W., Hanigan, M. D. and Arogo Ogejo, J. 2009. Effects of reducing dietary nitrogen on ammonia emissions from manure on the floor of a naturally ventilated free stall dairy barn at low (0-20°C) temperatures. J. Environ. Qual. 38:2172-2181.
140. Loehr, R. C. 1974. Agricultural waste management:Problems, processes and approaches. Academic Press Inc., New York, NY. 576 pp.
141. Lockyer, D. R. 1984. A system for the measurement in the field of losses of ammonia through volatilization. J. Sci. Food Agric. 35:837-848.
142. Lopez-Real, J. and Baptista, M. 1996. A preliminary comparative study of three manure composting systems and their influence on process parameters and methane emissions. Compost Sci. Util. 4:71-82.
143. Mariotti, A., Germon, J. C, Hubert, P., Kaiser, P., Letolle, R., Tardieux, A. and Tardieux, P. 1981. Experimental determination of nitrogen kinetic isotope fractionation:some principles; illustration for the denitrification and nitrification processes. Plant Soil 62:413-430.
144. McCarty, P. L. and Sawyer, C. N. 1978. Chemistry for environmental engineering. 3rd ed. McGraw-Hill, Columbus, OH. 544 pp.
145. McGinn, S. M. and Janzen, H. H. 1998. Ammonia sources in agriculture and their measurement. Can. J. Soil Sci. 78: 139-148.
146. McGinn, S. M., Coates, T., Flesch, T. K. and Crenna, B. P. 2008. Ammonia emissions from dairy cow manure stored in a lagoon over summer. Can. J. Soil Sci. 88:611-615.
147. McGinn, S. M., Flesch, T. K., Crenna, B. P., Beauchemin, K. A. and Coates, T. 2007. Quantifying ammonia emissions from a cattle feedlot
148. McGinn, S. M., Janzen, H. H. and Coates, T. 2003. Atmospheric ammonia, volatile fatty acids, and other odorants near beef feedlots. J. Environ. Qual. 32:1173-1182.
149. McInnes, K. J. and Heilman, J. L. 2005. Relaxed eddy accumulation. Pages 437-453 in M. K. Viney et al., eds. Micrometeorology in agricultural systems. Agronomy Monogr. 47. ASA, CSSA, and SSSA, Madison, WI.
150. Meisinger, J. J., Lefcourt, A. M. and Thompson, R. B. 2001. Construction and validation of small mobile wind tunnels for studying ammonia volatilization. Appl. Eng. Agric. 17: 375-381.
151. Menzi, H., Bonjour, C, Zaucker, F., Leuenberger, C. and Reidy, B. 2008. Agrammon:A new internet based model for the differentiated estimation of ammonia emissions from individual farms or at the area-wide scale. Pages 158-163 in V. Koutev, ed. Proceedings of the 13th RAMIRAN International Conference. [Online] Available:http://www.ramiran.net/doc08/RAMIRAN_2008/Menzi.pdf [2010 Apr. 08].
152. Miller, K. A., Siscovick, D. S., Sheppard, L., Shepherd, K., Sullivan, J. H., Anderson, G. L. and Kaufman, J. D. 2007. Long-term exposure to air pollution and incidence of cardiovascular events in women. N. Engl. J. Med. 356:447-458.
153. Miner, J. R. 1975. Evaluation of alternative approaches to control odors from animal feedlots. Idaho Research Foundation, Moscow, ID.
154. Misselbrook, T. H., Brookman, S. K. E., Smith, K. A., Cumby, T., Williams, A. G. and McCrory, D. F. 2005a. Crusting of stored dairy slurry to abate ammonia emissions:Pilot-scale studies. J. Environ. Qual. 34:411-419.
155. Misselbrook, T. H., Nicholson, F. A., Chambers, B. J. and Johnson, R. A. 2005b. Measuring ammonia emissions from land applied manure:an intercomparison of commonly used samplers and techniques. Environ. Poll. 135:389-397.
156. Misselbrook, T. H., Pain, B. F. and Headon, D. M. 1998. Estimates of ammonia emission from dairy cow collecting yards. J. Agric. Eng. Res. 71:127-135.
157. Misselbrook, T. H., Van Der Weerden, T. J., Pain, B. F., Jarvis, S. C, Chambers, B. J., Smith, K. A., Phillips, V. R. and Demmers, T. G. M. 2000. Ammonia emission factors for UK agriculture. Atmos. Environ. 34:871-880.
158. Misselbrook, T. H., Webb, J., Chadwick, D. R., Ellis, S. and Pain, B. F. 2001. Gaseous emissions from outdoor concrete yards used by livestock. Atmos. Environ. 35:5331-5338.
159. Misselbrook, T. H., Webb, J. and Gilhespy, S. L. 2006. Ammonia emissions from outdoor concrete yards used by livestock - quantification and mitigation. Atmos. Environ. 40: 6752-6763.
160. Monteny, G. J. and Erisman, J. W. 1998. Ammonia emissions from dairy cow buildings:a review of measurement techniques, influencing factors and possibilities for reduction. Netherlands J. Agric. Sci. 46:225-247.
161. Montes, F., Rotz, C. A. and Chaoui, H. 2009. Process modeling of ammonia volatilization from ammonium solution and manure surfaces. Trans. ASABE 52:1707-1719.
162. Moreira, V. R. and Satter, L. D. 2006. Effect of scraping frequency in a freestall barn on volatile nitrogen loss from dairy manure. J. Dairy Sci. 89:2579-2587.
163. Muck, R. E. 1982. Urease activity in bovine feces. J. Dairy Sci. 65:2157-2163.
164. Muck, R. E. and Richards, B. K. 1983. Losses of manurial nitrogen in free-stall barns. Agric. Wastes 7:65-79.
165. Mukhtar, S., Mutlu, A., Capareda, S. C. and Parnell, C. B. 2008. Seasonal and spatial variations of ammonia emissions from an open-lot dairy operation. J. Air Waste Manage. Assoc. 58:369-376.
166. Mukhtar, S., Mutlu, A., Lacey, R. E. and Parnell, Jr., C. B. 2009. Seasonal ammonia emissions from a free-stall dairy in central Texas. J. Air Waste Manage. Assoc. 59:613-618.
167. NAEMS. 2006. National air emissions monitoring study. Purdue University, West Lafayette, IN [Online] Available: https://engineering.purdue.edu/~odor/NAEMS/index.htm [2010 Apr. 08].
168. Nannipieri, P. and Eldor, P. 2009. The chemical and functional characterization of soil N and its biotic components. Soil Biol. Biochem. 41:2357-2369.
169. Ndegwa, P. M., Hristov, A. N., Arogo, J. and Sheffield, R. E. 2008. A review of ammonia emission mitigation techniques for concentrated animal feeding operations. Biosyst. Eng. 100: 453-469.
170. Ni, J. 1999. Mechanistic models of ammonia release from liquid manure:a review. J. Agric. Eng. Res. 72: 1-17.
171. Ni, J. Q. and Heber, A. J. 2008. Sampling and measurement of ammonia at animal facilities. Adv. Agron. 98:201-269.
172. National Research Council. 1996. National Research Council. Nutrient requirements of beef cattle. 7th rev. ed. National Academy Press, Washington, DC.
173. National Research Council. 2001. National Research Council. Nutrient requirements of dairy cattle. 7th rev. ed. National Academy Press, Washington, DC.
174. National Research Council. 2003. Air emissions from animal feeding operations:Current knowledge, future needs. The National Academies Press, Washington, DC.
175. Oberdorster, G. 2000. Pulmonary effects of inhaled ultrafine particles. Int. Arch. Occupat. Environ. Health 74: 1-8.
176. Oenema, O., Oudendag, D. and Velthof, G. L. 2007. Nutrient losses from manure management in the European Union. Livest. Sci. 112:261-272.
177. Olesen, J. E. and Sommer, S. G. 1993. Modeling effects of wind speed and surface cover on ammonia volatilization from stored pig slurry. Atmos. Environ. 27A:2567-2574.
178. Olmos Colmenero, J. J. and Broderick, G. A. 2006. Effect of dietary crude protein concentration on milk production and nitrogen utilization in lactating dairy cows. J. Dairy Sci. 89: 1704-1712.
179. Paris, C. S., Parker, D. B., Cole, N. A., Todd, R. W., Carraway, E. A., Rhoades, M. B., Baniya, B. and Brown, T. B. 2009. Comparison of ammonia emissions determined with different sampling methods. Pages 83-90 in E. Jordan, ed. Proceedings, Texas Animal Manure Management Issues Conference, September 29-30, 2009, Round Rock, TX.
180. Parker, D. B., Caraway, E. A., Rhoades, M. B., Cole, N. A., Todd, R. W. and Casey, K. D. 2010. Effect of wind tunnel air velocity on VOC flux from standard solutions and CAFO manure/wastewater. Trans. ASABE 53:831-845.
181. Parker, D. B., Pandrangi, S., Greene, L. W., Almas, L. K., Cole, N. A., Rhoades, M. B. and Koziel, J. A. 2005. Rate and frequency of urease inhibitor application for minimizing ammonia emissions form beef cattle feedyards. Trans. ASAE 48:787-793.
182. Paul, J. W., Dinn, N. E., Kannangara, T. and Fisher, L. J. 1998. Protein content in dairy cattle diets affects ammonia losses and fertilizer nitrogen value. J. Environ. Qual. 27:528-534.
183. Perry, R., Green, D. and Maloney, J. 1997. Perry's chemical engineering handbook. 7th ed. McGraw-Hill, Columbus, OH.
184. Petersen, S. O., Sommer, S. G., Aaes, O. and Soegaard, K. 1998. Ammonia losses from urine and dung of grazing cattle: effect of N intake. Atmos. 32:295-300.
185. Phillips, S. B., Arya, S. P. and Aneja, V. P. 2004. Ammonia flux and dry deposition velocity from near-surface concentration gradient measurements over a grass surface in North Carolina. Atmos. Environ. 38:3469-3480.
186. Piatkowski, B. and Voigt, J. 1986. Studies on the intestinal protein supply in the cow. Arch. Anim. Nutr. 36:222-226.
187. Pinder, R. W., Pekney, N. J., Davidson, C. I. and Adams, P. J. 2004a. A process-based model of ammonia emissions from dairy cows:improved temporal and spatial resolution. Atmos. Environ. 38:1357-1365.
188. Pinder, R. W., Strader, R., Davidson, C. I. and Adams, P. J. 2004b. A temporally and spatially resolved ammonia emission inventory for dairy cows in the United States. Atmos. Environ. 38:3747-3756.
189. Powell, J. M., Broderick, G. A. and Misselbrook, T. H. 2008a. Seasonal diet affects ammonia emissions from tie-stall dairy barns. J. Dairy Sci. 91:857-869.
190. Powell, J. M., Misselbrook, T. H. and Casler, M. D. 2008b. Season and bedding impacts on ammonia emissions from tie-stall dairy barns. J. Environ. Qual. 37: 7-15.
191. Powers, W. J. 1999. Odor control for livestock systems. J. Anim. Sci. 77 (Suppl. 2):169-176.
192. Pye, H. O. T., Liao, H., Wu, S., Mickley, L. J., Jacob, D. J., Henze, D. K. and Seinfeld, J. H. 2009. Effect of changes in climate and emissions on future sulfate-nitrate-ammonium aerosol levels in the United States. J. Geophys. Res. 114: D01205, doi:10.1029/2008JD010701.
193. Rana, G. and Mastrorilli, M. 1998. Ammonia emissions from fields treated with green manure in a Mediterranean climate. Agric. Forest. Meteorol. 90:265-274.
194. Renard, J. J., Calidonna, S. E. and Henley, M. V. 2004. Fate of ammonia in the atmosphere - a review for applicability to hazardous releases. J. Hazard. Mat. B108:29-60.
195. Reynal, S. M. and Broderick, G. A. 2005. Effect of dietary level of rumen-degraded protein on production and nitrogen metabolism in lactating dairy cows. J. Dairy Sci. 88: 4045-4064.
196. Reynolds, C. K. and Kristensen, N. B. 2008. Nitrogen recycling through the gut and the nitrogen economy of ruminants:An asynchronous symbiosis. J. Anim. Sci. Suppl. 86 (E. Suppl.): E293-E305.
197. Rhoades, M. B., Auvermann, B. W., Cole, N. A., Todd, R. W., Parker, D. B., Caraway, E. A., Schuster, G. and Spears, J. 2008. Ammonia concentration and modeled emission rates from a beef cattle feedyard. Paper # 084445. Proc. ASABE Annual International Meeting. Providence, RI, Jun. 29-Jul. 02.
198. Rhoades, M. B., Parker, D. B., Auvermann, B., Cole, N. A., Perschbacher-Buser, Z. and DeOtte, R. E. 2005. Factors affecting emission measurements with surface isolation flux chambers. Proc. ASAE Annual Meeting, Tampa FL. 2005 Jul. 17-20. Paper No. 054026.
199. Rius, A. G., McGilliard, M. L., Umberger, C. A. and Hanigan, M. D. 2010. Interactions of energy and predicted metaboliz-able protein in determining nitrogen efficiency in the lactating dairy cow. J. Dairy Sci. 93:2034-2043.
200. Rochette, P. and Hutchinson, G. L. 2005. Measurement of soil respiration in situ:Chamber techniques. Pages 247-286 in J. L. Hatfield and J. M. Baker, eds. Micrometeorology in agricultural systems. Agronomy Monogr. 47. ASA, CSSA, and SSSA, Madison, WI.
201. Rotz, C. A. 2004. Management to reduce nitrogen losses in animal production. J. Anim. Sci. 82 (E. Suppl.):E119-E137.
202. Rotz, C. A. and Oenema, J. 2006. Predicting management effects on ammonia emissions from dairy and beef farms. Trans. ASAE 49:1139-1149.
203. Rotz, C. A., Corson, M. S., Chianese, D. S. and Coiner, C. U. 2009b. Integrated Farm System Model:Reference manual. USDA Agricultural Research Service, University Park, PA. [Online] Available:http://ars.usda.gov/SP2UserFiles/Place/19020000/ifsmreference. pdf [2010 Apr. 15].
204. Rotz, C. A., Kamphuis, G. H., Karsten, H. D. and Weaver, R. D. 2007. Organic dairy production systems in Pennsylvania: a case study evaluation. J. Dairy Sci. 90:3961-3979.
205. Rotz, C. A., Kleinman, P. J., Dell, C. J., Veith, T. L. and Beegle, D. B. 2010a. Environmental and economic comparisons of manure application methods in farming systems. J. Environ. Qual. (in press).
206. Rotz, C. A., Montes, F. and Chianese, D. S. 2010b. The carbon footprint of dairy production systems through partial life cycle assessment. J. Dairy Sci. 93:1266-1282.
207. Rotz, C. A., Oenema, J. and van Keulen, H. 2006. Whole farm management to reduce nutrient losses from dairy farms:a simulation study. Appl. Eng. Agric. 22:773-784.
208. Rotz, C. A., Soder, K. J., Skinner, R. H., Dell, C. J., Kleinman, P. J., Schmidt, J. P. and Bryant, R. B. 2009a. Grazing can reduce the environmental impact of dairy production systems. [Online] Available:http://www.plantmanagementnetwork.org/sub/fg/research/2009/imp act/impact.pdf [2010 Apr. 15].
209. Ruiz, R., Tedeschi, L. O., Marini, J. C, Fox, D. G., Pell, A. N., Jarvis, G. and Russell, J. B. 2002. The effect of a ruminal nitrogen (N) deficiency in dairy cows:Evaluation of the Cornell Net Carbohydrate and Protein System ruminal N deficiency adjustment. J. Dairy Sci. 85:2986-2999.
210. Rumburg, B., Mount, G. H., Filipy, J., Lamb, B., Westberg, H., Yonge, D., Kincaid, R. and Johnson, K. 2008. Measurement and modeling of atmospheric flux of ammonia from dairy milking cow housing. Atmos. Environ. 42:3364-3379.
211. Rumburg, B., Mount, G. H., Yonge, D. Y., Lamb, B., Westberg, H., Filipy, J., Bays, J., Kincaid, R. and Johnson, K. 2006. Atmospheric flux of ammonia from sprinkler application of dairy waste. Atmos. Environ. 40:7246-7258.
212. Schils, R. L. M., de Haan, M. H. A., Hemmer, J. G. A., Vanden Pol-van Dasselaar, A., de Boer, J. A, Evers, A. G., Holshof, G., van Middelkoop, J. C. and Zom, R. L. G. 2006. DairyWise, a whole farm dairy model. J. Dairy Sci. 90:5334-5346.
213. Schjorring, J. K. 1995. Long-term quantification of ammonia exchange between agricultural cropland and the atmosphere. I. Evaluation of a new method based on passive flux samplers in gradient configuration. Atmos Environ. 29:885-893.
214. Scholtens, R., Holl, J. M. G., Wagemans, M. J. M. and Phillips, V. R. 2003. Improved passive flux samplers for measuring ammonia emissions from animal houses, part 1: Basic principles. Biosyst. Eng. 85:95-100.
215. Sedorovich, D. M., Rotz, C. A., Vadas, P. A. and Harmel, R. D. 2007. Simulating management effects on phosphorus loss from farming systems. Trans. ASABE 50:1443-1453.
216. Selles, F. and Karamanos, R. E. 1986. Variations in natural nitrogen-15 abundance as an aid in manure-nitrogen studies. J. Environ. Qual. 15:24-30.
217. Sharpe, R. R. and Harper, L. A. 1997. Ammonia and nitrous oxide emissions from sprinkler irrigation applications of swine effluent. J. Environ. Qual. 26:1703-1706.
218. Shi, Y., Parker, D. B., Cole, N. A., Auvermann, B. W. and Melhorn, J. E. 2001. Soil amendments to minimize ammonia emissions from beef cattle feedlots. Trans. ASAE 44:677-682.
219. Smith, K., Cumby, T., Lapworth, J., Misselbrook, T. and Williams, A. 2007. Natural crusting of slurry storage as an abatement measure for ammonia emissions on dairy farms. Biosyst. Eng. 97:464-471.
220. Smits, M. C. J., Monteny, G. J. and van Duinkerken, G. 2003. Effect of nutrition and management factors on ammonia emission from dairy cow herds:models and field observations. Livest. Prod. Sci. 84:113-123.
221. Smits, M. C. J., Valk, H., Elzing, A. and Keen, A. 1995. Effect of protein nutrition on ammonia emission from a cubicle house for dairy cattle. Livest. Prod. Sci. 44:147-156.
222. Snell, H. G. J., Seipelt, F. and Van den Weghe, H. F. A. 2003. Ventilation rates and gaseous emissions from naturally ventilated dairy houses. Biosyst. Eng. 86:67-73.
223. Søgaard, H. T., Sommer, S. G., Hutchings, N. J., Huijsmans, J. F. M., Bussink, D. W. and Nicholson, F. 2002. Ammonia volatilization from field-applied animal slurry - the ALFAM model. Atmos. Environ. 36:3309-3319.
224. Sommer, S. G. and Olesen, J. E. 2000. Modeling ammonia volatilization from animal slurry applied with trail hoses to cereals. Atmos. Environ. 34:2361-2372.
225. Sommer, S. G., Christensen, B. T., Nielsen, N. E. and Schjørring, J. K. 1993. Ammonia volatilization during storage of cattle and pig slurry:Effect of surface cover. J. Agric. Sci. (Camb.) 121:63-71.
226. Sommer, S. G., McGinn, S. M. and Flesch, T. K. 2005. Simple use of the backwards Lagrangian stochastic dispersion technique for measuring ammonia emission from small field-plots. Eur. J. Agron. 23: 1-7.
227. Sommer, S. G., McGinn, S. M., Hao, X. and Larney, F. J. 2004. Techniques for measuring gas emissions from a composting stockpile of cattle manure. Atmos. Environ. 38:4643-4652.
228. Sommer, S. G., Zhang, G. Q., Bannink, A., Chadwick, D., Misselbrook, T., Harrison, R., Hutchings, N. J., Menzi, H., Monteny, G. J., Ni, J. Q., Oenema, O. and Webb, J. 2006. Algorithms determining ammonia emission from buildings housing cattle and pigs and from manure stores. Adv. Agron. 89:261-335.
229. Sparks, J. A. 2008. The effects of manure handling and dietary protein on ammonia emissions from a flush dairy. M.Sc. thesis, Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VI. [Online] Available:http://scholar.lib.vt.edu/theses/available/etd-07212008-204118 /unrestricted/SparksThesis.pdf [2010 Apr. 08].
230. Staebler, R. M., McGinn, S. M., Crenna, B. P., Flesch, T. K., Hayden, K. L. and Li, S.-M. 2009. Three-dimensional characterization of the ammonia plume from a beef cattle feedlot. Atmos. Environ. 43:6091-6099.
231. Steele, K. W. and Daniel, R. M. 1978. Fractionation of nitrogen isotopes by animals:a further complication to the use of variations in the natural abundance of 15N for tracer studies. J. Agric. Sci. (Camb.) 90: 7-9.
232. Stewart, B. A. 1970. Volatilization and nitrification of nitrogen from urine under simulated cattle feedlot conditions. Environ. Sci. Technol. 4:579-582.
233. Stewart, G. S. and Smith, C. P. 2005. Urea nitrogen salvage mechanisms and their relevance to ruminants, non-ruminants, and man. Nutr. Res. Rev. 18:49-62.
234. Stumm, W. and Morgan, J. J. 1996. Aquatic chemistry: Chemicial equilibria and rates in nautral waters. 3rd ed. Wiley Interscience, New York, NY. 1040 pp.
235. Suryawan, A., Orellana, R. A., Nguyen, H. V., Jeyapalan, A. S., Fleming, J. R. and Davis, T. A. 2007. Activation by insulin and amino acids of signaling components leading to translation initiation in skeletal muscle of neonatal pigs is developmentally regulated. Am. J. Physiol. Endocrinol. Me-tab. 293:E1597-1605.
236. Sutton, M. A., Erisman, J. W., Dentener, F. and Moller, D. 2008. Ammonia in the environment:From ancient times to the present. Environ. Poll. 156:583-604.
237. Teye, F. K. and Hautala, M. 2008. Adaptation of an ammonia volatilization model for a naturally ventilated dairy building. Atmos. Environ. 42:4345-4354.
238. Thom, A. S. 1975. Momentum, mass, and heat exchange of plant communities. Pages 57-109 in J. L. Monteith, ed. Vegetation and the atmosphere. Academic Press, Inc., New York, NY.
239. Thompson, R. B. and Fillery, I. R. P. 1998. Fate of urea nitrogen in sheep urine applied to soil at different times of the year in the pasture-wheat rotation in south Western Australia. Aust. J. Agric. Res. 49:495-510.
240. Thompson, R. B. and Meisinger, J. J. 2002. Management factors affecting ammonia volatilization from land-applied cattle slurry in the Mid-Atlantic USA. J. Environ. Qual. 31: 1329-1338.
241. Thompson, R. B. and Meisinger, J. J. 2004. Gaseous nitrogen losses and ammonia volatilization measurement following land application of cattle slurry in the Mid-Atlantic region of the USA. Plant Soil 266:231-246.
242. 15N cross-labelled solid ruminant manure during anaerobic and aerobic storage. Bioresour. Technol. 72:267-274.
243. Todd, M. J. and Hausinger, R. P. 1989. Competitive inhibitors of Klebsiella aerogenes urease:mechanisms of interaction with the nickel active site. J. Biol. Chem. 264:15835-15842.
244. Todd, R. W., Cole, N. A. and Clark, R. N. 2006. Reducing crude protein in beef cattle diets reduces ammonia emissions form artificial feedyard surfaces. J. Environ. Qual. 35: 404-411.
245. Todd, R. W., Cole, N. A., Clark, R. N., Flesch, T. K., Harper, L. A. and Baek, B. H. 2008. Ammonia emissions from a beef cattle feedyard on the southern High Plains. Atmos. Environ. 42:6797-6805.
246. Todd, R. W., Cole, N. A., Harper, L. A., Flesch, T. K. and Baek, B. H. 2005. Ammonia and gaseous nitrogen emissions from a commercial beef cattle feedyard estimated using the flux-gradient method and N:P ratio analysis. In P. J. Nowak, ed. Proceedings, State of the Science Conference:Animal manure and waste management. National Center for Manure and Waste Management, San Antonio, TX. Jan 5-7, 2005. [Online] Available:http://www.cals.ncsu.edu/waste_mgt/natlcenter/sanantonio/Todd. pdf [2010 Apr. 08].
247. Todd, R. W., Cole, N. A., Parker, D. B., Rhoades, M. and Casey, K. 2009. Effect of feeding distiller's grain on dietary crude protein and ammonia emissions from beef cattle feedyards. Pages 37-44 in E. Jordan, ed. Proceedings, Texas Animal Manure Management Issues Conference, Round Rock, TX. 2009 Sep. 29-30.
248. Udert, K. M., Larsen, T. A., Biebow, M. and Gujer, W. 2003. Urea hydrolysis and precipitation dynamics in a urine-collecting system. Water Res. 37:2571-2582.
249. Underwood, E. J. and Suttle, N. F. 2001. The mineral nutrition of livestock. 3rd ed., CABI Publishing, Wallingford, UK.
250. United States Environmental Protection Agency. 2004a. National emission inventory*Ammonia emissions from animal husbandry operations. USEPA, Washington, DC.
251. United States Environmental Protection Agency. 2004b. Air quality criteria for particulate matter. Volume I. USEPA, Washington, DC.
252. United States Environmental Protection Agency. 2005. National emission inventory - Ammonia emissions from animal agricultural operations:Revised draft report. 2005 Apr. 22. [Online] Available:http://www.epa.gov/ttn/chief/eiinformation.html. [2010 Apr. 08].
253. United States Environmental Protection Agency. 2008. NationaL AIR QUALIty - Status and trends through 2007. [Online] Available:http://www.epa.gov/air/airtrends/2008. [2010 Apr. 08].
254. United States Environmental Protection Agency. 2009a. Emergency Planning and Community Right-to-Know Act (EP-CRA) Requirements. [Online] Available:http://www.epa.gov/emergencies/content/epcra/index.htm. [2010 Apr. 08].
255. United States Environmental Protection Agency. 2009b. Inventory of U.S. greenhouse gas emissions and sinks:1990-2007 (public review draft). USEPA. Washington, DC. [Online] Available:http://www.epa.gov/climatechange/emissions/usinventoryreport.h tml. [2010 Apr. 08].
256. United States Environmental Protection Agency. 2010. Methane and nitrous oxide emissions from natural sources. USEPA, Washington, DC [Online] Available:http://www.epa.gov/methane/sources.html. [2010 Oct. 10].
257. Van Der Molen, J., Beljaars, A. C. M., Chardon, W. J., Jury, W. A. and Vanfaasssen, H. G. 1990. Ammonia volatilization from arable land after application of cattle slurry. 2. Derivation of a transfer model. Neth. J. Agric. Sci. 38:239-254.
258. Van Duinkerken, G., André, G., Smits, M. C. J., Monteny, G. J. and Šebek, L. B. J. 2005. Effect of rumen-degradable protein balance and forage type on bulk milk urea concentration and emission of ammonia from dairy cow houses. J. Dairy Sci. 88:1099-1112.
259. van Haarlem, R. P., Desjardins, R. L., Gao, Z., Flesch, T. K. and Li, X. 2008. Methane and ammonia emissions from a beef feedlot in western Canada for a twelve-day period in the fall. Can. J. Anim. Sci. 88:641-649.
260. Vander Pol, M., Hristov, A. N., Zaman, S. and Delano, N. 2006. Peas can replace soybean meal and corn grain in dairy cow diets. J. Dairy Sci. 91:698-703.
261. Vanderholm, D. H. 1975. Nutrient losses from livestock waste during storage, treatment and handling. Pages 282-285 in Proceedings, ASAE 3rd International Symposium on Livestock Wastes.
262. VanderZaag, A. C, Gordon, R. J., Glass, V. M. and Jamieson, R. C. 2008. Floating covers to reduce gas emissions from liquid manure storages:A Review. Appl. Eng. Agric. 24:657-671.
263. Varel, V. H. 1997. Use of urease inhibitors to control nitrogen loss from livestock waste. Bioresour. Technol. 62:11-17.
264. Varel, V. H., Nienaber, J. A. and Freetly, H. C. 1999. Conservation of nitrogen in cattle feedlot waste with urease inhibitors. J. Anim. Sci. 77:1162-1168.
265. Vavilin, V. A., Fernandez, B., Palatsi, J. and Flotats, X. 2008. Hydrolysis kinetics in anaerobic degradation of particulate organic material:An overview. Waste Manage. 28:939-951.
266. Vlek, P. L. G. and Stumpe, J. M. 1978. Effects of solution chemistry and environmental conditions on ammonia volatilization losses from aqueous systems. Soil Sci. Soc. Am. J. 42:416-421.
267. 15N urea. Arch. Anim. Nutr. 34: 387-395.
268. Weiss, W. P., Willett, L. B., St-Pierre, N. R., Borger, D. C, McKelvey, T. R. and Wyatt, D. J. 2009. Varying forage type, metabolizable protein concentration, and carbohydrate source affects manure excretion, manure ammonia, and nitrogen metabolism of dairy cows. J. Dairy Sci. 92:5607-5619.
269. Wexler, A. S. and Johnston, M. V. 2008. What have we learned from highly time-resolved measurements during EPA's super-sites program and related studies? J. Air Waste Manage. Assoc. 58:303-319.
270. Whitelaw, F. G., Milne, J. S., Orskov, E. R. and Smith, J. S. 1986. The nitrogen and energy metabolism of lactating cows given abomasal infusions of casein. Br. J. Nutr. 55: 537-556.
271. World Health Organization. 2005. Air quality and health. [Online] Available:http://www.who.int/mediacentre/factsheets/fs313/en/index.html. [2010 Apr. 08].
272. Wickersham, T. A., Titgemeyer, E. C, Cochran, R. C, Wickersham, E. E. and Gnad, D. P. 2008a. Effect of rumen-degradable intake protein supplementation on urea kinetics and microbial use of recycled urea in steers consuming low-quality forage. J. Anim. Sci. 86:3079-3088.
273. Wickersham, T. A., Titgemeyer, E. C, Cochran, R. C, Wickersham, E. E. and Moore, E. S. 2008b. Effect of frequency and amount of rumen-degradable intake protein supplementation on urea kinetics and microbial use of recycled urea in steers consuming low-quality forage. J. Anim. Sci. 86: 3089-3099.
274. Wilson, S. M. and Serre, M. L. 2007. Use of passive samplers to measure atmospheric ammonia levels in a high-density industrial hog farm area of eastern North Carolina. Atmos. Environ. 41:6074-6086.
275. Wilson, J. D. and Shum, W. K. N. 1992. A re-examination of the integrated horizontal flux method for estimating volatilisation from circular plots. Agric. Meteorol. 57:281-295.
276. Wilson, J. D., Catchpoole, V. R., Denmead, O. T. and Thurtell, G. W. 1983. Verification of a simple meteorological method for estimating the rate of gaseous mass transfer from the ground to the atmosphere. Agric. Forest. Meteorol. 29:183-189.
277. Wilson, J. D., Flesch, T. K. and Harper, L. A. 2001. Micro-meteorological methods for estimating surface exchange with a disturbed windflow. Agric. Forest. Meteorol. 107:207-225.
278. Wood, S. L., Schmidt, D. R., Janni, K. A., Jacobson, L. D., Clanton, C. J. and Weisberg, S. 2001. Odor and air emissions from animal production systems. Paper # 01-4043 at the 2001 ASAE Annual Meeting, Sacramento, CA. 2001 Jul. 30-Aug. 01.
279. Wyers, G. P. and Erisman, J. W. 1998. Ammonia exchange over coniferous forest. Atmos. Environ. 32:441-451.
280. Wu, S-Y., Krishnan, S., Zhang, Y. and Aneja, V. 2008. Modeling atmospheric transport and fate of ammonia in North Carolina - Part I: Evaluation of meteorological and chemical predictions. Atmos. Environ. 42:3419-3436.
281. Yang, Z., Niimi, H., Kanda, K. and Suga, Y. 2003. Measurement of ammonia volatilization from a field, in upland Japan, spread with cattle slurry. Environ. Poll. 121:463-467.
282. Zhang, B., He, P., Lu, F., Shao, L. and Wang, P. 2007. Extracellular enzyme activities during regulated hydrolysis of high-solid organic wastes. Water Res. 41:4468-4478.
283. Zhang, G., Strøm, J. S., Li, B., Rom, H. B., Morsing, S., Dahl, P. and Wang, C. 2005a. Emission of ammonia and other contaminant gases from naturally ventilated dairy cattle buildings. Biosyst. Eng. 92:355-364.
284. Zhang, R., Fadel, J., Rumsey, T., Arogo, J., Xin, H., Mansell, G. E. and Wang, Z. 2005b. A process based ammonia emission model for confinement animal feeding operations -model development. 14th International Emission Inventory Conference. [Online] Available:http://.epa.gov/ttn/chief/conference/ei14/session1/zhang.pdf. [2010 Apr. 08].
285. Zhao, L. Y., Darr, M., Wang, X., Manuzon, R., Brugger, M., Imerman, E., Arnold, G., Keener, H. and Heber, A. J. 2007. Temporal variations in gas and odor emissions from a dairy manure storage pond. In Proceedings of the 6th International Dairy Housing Conference. ASABE Paper No. 701P0507e. ASABE, St. Joseph, MI.
286. Zhu, J., Jacobson, L., Schmidt, D. and Nicolai, R. 2000. Daily variations in odor and gas emissions from animal facilities. Appl. Eng. Agric. 16:153-158.