Optimizing livestock feed provision to improve the efficiency of the agri-food system

References

• Alexandratos, N., and J. Bruinsma. 2012. World agriculture towards 2030/2050: The 2012 revision. ESA Working Paper. Rome.
   Google Scholar
• Barbut, S. 2015. The science of poultry and meat processing. University of Guelph. The science of poultry and meat processing. Accessed April 14, 2019. http://download.poultryandmeatprocessing.com/v01/SciPoultryAndMeatProcessin%20-%20Barbut%20-%20v01.pdf.
   Google Scholar
• Barragan-Fonseca, K. B., M. Dicke, and J. J. A. van Loon. 2017. Nutritional value of the black soldier fly (Hermetia Illucens L.) and its suitability as animal feed – A review. Journal of Insects as Food and Feed 3 (2):105–20. doi:10.3920/JIFF2016.0055.
   Web of Science ®Google Scholar
• Beauchemin, K. A., M. Kreuzer, F. O’Mara, and T. A. McAllister. 2008. Nutritional management for enteric methane abatement: A review. Australian Journal of Experimental Agriculture 48:21–27. doi:10.1071/EA07199.
   Google Scholar
• Beef Cattle Research Council. 2016. Optimizing feedlot feed efficiency. BCRC. Accessed April 14, 2019. http://www.beefresearch.ca/research-topic.cfm/optimizingfeedlot-feed-efficiency-8.
   Google Scholar
• Bhalla, T. C., and M. Joshi. 1994. Protein enrichment of apple pomace by co-culture of cellulolytic moulds and yeasts. World Journal of Microbiology and Biotechnology 10 (1):116–17. doi:10.1007/BF00357577.
   PubMed Web of Science ®Google Scholar
• Blanco-Canqui, H. T. M., J. L. Shaver, C. A. Lindquist, R. W. Shapiro, C. A. Elmore, Francis, and G. W. Hergert. 2015. Cover crops and ecosystem services: Insights from studies in temperate soils. Agronomy 107:2449–74. doi:10.2134/agronj15.0086.
   Web of Science ®Google Scholar
• Blanco-Canqui, H., and R. Lal. 2009. Corn stover removal for expanded uses reduces soil fertility and structural stability. Soil Science Society of America Journal 73 (2):Soil Science Society: 418. doi:10.2136/sssaj2008.0141.
   Web of Science ®Google Scholar
• Bowling, R. A., and J. K. Riggs. 1978. Production, carcass and palatability characteristics of steers produced by different management systems. Journal of Animal Science 46 (2):333–40. doi:10.2527/jas1978.462333x.
   Web of Science ®Google Scholar
• Capper, J. L., L. Berger, M. M. Brashears, and H. H. Jensen. 2014. Animal feed vs. human food: Challenges and opportunities in sustaining animal agriculture toward 2050. IDEAS Working Paper Series. Accessed April 14, 2019. https://lib.dr.iastate.edu/cgi/viewcontent.cgi?referer=https://www.google.com/&httpsedir=1&article=1015&context=econ_reportspapers.
   Google Scholar
• Cassidy, E. S., P. C. West, J. S. Gerber, and J. A. Foley. 2013. Redefining agricultural yields: From tonnes to people nourished per hectare. Environmental Research Letters 8 (3):034015. doi:10.1088/1748-9326/8/3/034015.
   Web of Science ®Google Scholar
• Cederberg, C., U. M. Persson, K. Neovius, S. Molander, and R. Clift. 2011. Including carbon emissions from deforestation in the carbon footprint of Brazilian beef. Environmental Science & Technology 45 (5):American Chemical Society: 1773–79. doi:10.1021/es103240z.
   PubMed Web of Science ®Google Scholar
• Cicek, H., J. R. Thiessen Martens, K. C. Bamford, and M. H. Entz. 2014. Effects of grazing two green manure crop types in organic farming systems: N supply and productivity of following grain crops. Agriculture, Ecosystems and Environment 190 (1):Elsevier B.V.: 27–36. doi:10.1016/j.agee.2013.09.028.
   Google Scholar
• Claassen, R., F. Carriazo, and K. Ueda. 2010. Grassland conversion for crop production in the United States: Defining indicators for policy analysis. Washington, D.C: Economic Research Service, U.S. Department of Agriculture.
   Google Scholar
• Clark, J. T., J. R. Russell, D. L. Karlen, P. L. Singleton, W. D. Busby, and B. C. Peterson. 2004. Soil surface property and soybean yield response to corn stover grazing. Agronomy Journal 96 (5):American Society of Agronomy: 1364. doi:10.2134/agronj2004.1364.
   Web of Science ®Google Scholar
• Conant, R. T., K. Paustian, and E. T. Elliot. 2001. Grassland management and conversion into Grassland: Effects on soil carbon. Ecological Applications 11 (2):343–55. doi:10.1890/1051-0761(2001)011[0343:GMACIG]2.0.CO;2.
   Web of Science ®Google Scholar
• Conant, R. T., K. Paustian, and E. Elliott. 2001. Grassland management and conversion into Grassland : Effects on soil carbon. Ecological Applications 11 (2):343–55. doi:10.1890/1051-0761(2001)011[0343:GMACIG]2.0.CO;2.
   Web of Science ®Google Scholar
• Costa, S. E. V. G. A., E. D. Souza, I. Anghinoni, P. C. F. Carvalho, A. P. Martins, T. R. Kunrath, D. Cecagno, and F. Balerini. 2014. Impact of an integrated no-till crop-livestock system on phosphorus distribution, availability and stock. Agriculture, Ecosystems and Environment 190 (1):Elsevier B.V.: 43–51. doi:10.1016/j.agee.2013.12.001.
   Google Scholar
• Davis, K. F., and P. D’Odorico. 2015. Livestock intensification and the influence of dietary change: A calorie-based assessment of competition for crop production. Science of the Total Environment 538 (15):Elsevier B.V.: 817–23. doi:10.1016/j.scitotenv.2015.08.126.
   PubMedGoogle Scholar
• Demontis, R. 2016. Forecasting flavours: 2017 is mouthful of a year. Toronto Sun, November.
   Google Scholar
• Derner, J. D., T. W. Boutton, and D. D. Briske. 2006. Grazing and ecosystem carbon storage in the North American Great Plains. Plant and Soil 280 (1–2):77–90. doi:10.1007/s11104-005-2554-3.
   Web of Science ®Google Scholar
• Dick, P. 2017. Personal Communication. Guelph: Dick, Phil. Business Resource Specialist, Ontario Ministry of Agriculture and Food.
   Google Scholar
• Elferink, E. V., S. Nonhebel, and H. C. Moll. 2008. Feeding livestock food residue and the consequences for the environmental impact of meat. Journal of Cleaner Production 16 (12):1227–33. doi:10.1016/j.jclepro.2007.06.008.
   Web of Science ®Google Scholar
• Ertl, P., W. Knaus, and W. Zollitsch. 2016. An approach to including protein quality when assessing the net contribution of livestock to human food supply. Animal 10 (11):1883–89. doi:10.1017/S1751731116000902.
   PubMed Web of Science ®Google Scholar
• Fadel, J. G. 1999. Quantitative analyses of selected plant by-product feedstuffs, a global perspective. Animal Feed Science and Technology 79 (4):255–68. doi:10.1016/S0377-8401(99)00031-0.
   Web of Science ®Google Scholar
• Fader, M., D. Gerten, M. Krause, W. Lucht, and W. Cramer. 2013. Spatial decoupling of agricultural production and consumption: quantifying dependences of countries on food imports due to domestic land and water constraints. Environmental Research Letters 8 (1):IOP Publishing: 014046. doi:10.1088/1748-9326/8/1/014046.
   Web of Science ®Google Scholar
• Fiddes, N. 2004. Meat: A natural symbol. London: Routledge.
   Google Scholar
• Food and Agriculture Organization (FAO). 1998. Livestock and the environment. Accessed October 09, 2018. http://www.fao.org/docrep/008/y8344e/y8344e05.htm.
   Google Scholar
• Food and Agriculture Organization (FAO). 2002. World agriculture : Towards 2015/2030 world agriculture: Towards 2015/2030. Organization 20 (4):97. doi:10.1016/S0264-8377(03)00047-4.
   Google Scholar
• Food and Agriculture Organization (FAO). 2005. Grassland of the world. Accessed October 05, 2018. http://www.fao.org/docrep/008/y8344e/y8344e05.htm.
   Google Scholar
• Food and Agriculture Organization (FAO). 2006. World agriculture: Towards 2030/2050 prospects for food, nutrition, agriculture and major commodity groups. Rome: Global Perspective Studies Unit of the Food and Agriculture Organization of the United Nations.
   Google Scholar
• Fournier, D. 2017. What are the best strategies? 2017 Dairy Producer.
   Google Scholar
• Franzluebbers, A. J. 2007. Integrated crop–livestock systems in the southeastern USA. Agronomy Journal 99:361–72. doi:10.2134/agronj2006.0076.
   Web of Science ®Google Scholar
• Franzluebbers, A. J., and J. A. Stuedemann. 2008. Soil & tillage research soil physical responses to cattle grazing cover crops under conventional and no tillage in the southern piedmont USA. Soil & Tillage Research 100:141–53. doi:10.1016/j.still.2008.05.011.
   Web of Science ®Google Scholar
• Fraser, E. D. G. 2012. Introducing solutions to the global food crisis. Accessed October 05, 2018. https://www.youtube.com/watch?v=raSHAqV8K9c.
   Google Scholar
• Fredeen, A. H., S. Juurlink, M. Main, T. Astatkie, and R. C. Martin. 2013. Implications of dairy systems on enteric methane and postulated effects on total greenhouse gas emission effects on total greenhouse gas emission. Animal 7 (11):1895–1883. doi:10.1017/S1751731113001390.
   Web of Science ®Google Scholar
• Fry, R. C. 2012. Measuring feed efficiency why & how on the back of a napkin. Florida Ruminant Nutrition Symposia 60:17–19.
   Google Scholar
• Galloway, J. N., M. Burke, G. E. Bradford, R. Naylor, W. Falcon, A. K. Chapagain, J. C. Gaskell, E. McCullough, H. A. Mooney, K. L. Oleson, et al. 2007. International trade in meat: The tip of the pork chop. Ambio 36 (8):622–29. doi:10.1579/0044-7447(2007)36[622:ITIMTT]2.0.CO;2.
   PubMed Web of Science ®Google Scholar
• Gaudin, A. C. M., S. Westra, C. E. S. Loucks, K. Janovicek, R. C. Martin, and W. Deen. 2013. Improving resilience of northern field crop systems using inter-seeded red clover: A review. Agronomy 3 (1):148–80. doi:10.3390/agronomy3010148.
   Google Scholar
• GFO. 2018. Market utilization overview. Guelph, Ontario.Accessed April 15 2019. https://gfo.ca/wp-content/uploads/2018/04/market-utilization-overview-web.pdf.
   Google Scholar
• Godfray, H. C. J., J. R. Beddington, I. R. Crute, L. Haddad, D. Lawrence, J. F. Muir, J. Pretty, S. Robinson, S. M. Thomas, and C. Toulmin. 2010. Food security: The challenge of feeding 9 billion people. Science (New York, N.Y.) 327 (5967):812–18. doi:10.1126/science.1185383.
   PubMed Web of Science ®Google Scholar
• Gooch, M., A. Felfel, and N. Marenick. 2010. Food waste in Canada. Accessed April 10, 2019. http://vcm-international.com/wp-content/uploads/2013/04/Food-Waste-in-Canada-112410.pdf.
   Google Scholar
• Gundy, S. 2010. The meat lessons: meat and potatoes on Prince Edward Island. The National Post, October.
   Google Scholar
• Gustavsson, J., C. Cederberg, and U. Sonesson. 2011. Global food losses and food waste. Food and Agriculture Organization of the United Nations. Accessed April 14, 2019. http://www.fao.org/3/mb060e/mb060e.pdf.
   Google Scholar
• Halde, C., A. M. Hammermeister, N. L. Mclean, K. T. Webb, and R. C. Martin. 2011. Soil compaction under varying rest periods and levels of mechanical disturbance in a rotational grazing system. Canadian Journal of Soil Science 91 (6):957–64. doi:10.4141/CJSS2011-026.
   Web of Science ®Google Scholar
• Hanna, H. M. 2014. Consider the possibility of reduced tillage after biomass harvest. Agriculture and Environment Extension Publications Book 202:1–3.
   Google Scholar
• Henderson, B. B., P. J. Gerber, T. E. Hilinski, A. Falcucci, D. S. Ojima, M. Salvatore, and R. T. Conant. 2015. Greenhouse gas mitigation potential of the world’s grazing lands: Modeling soil carbon and nitrogen fluxes of mitigation practices. Agriculture, Ecosystems and Environment 207 (1):Elsevier B.V.: 91–100. doi:10.1016/j.agee.2015.03.029.
   Google Scholar
• Herrero, M., P. K. Thornton, A. Notenbaert, S. Msangi, S. Wood, R. Kruska, J. Dixon, D. Bossio, J. Steeg, H. A. Freeman et al. 2012. Drivers of change in crop-livestock systems and their potential impacts on agro-ecosystems services and human wellbeing to 2030. A Study Commissioned by the CGIAR Systemwide Livestock Programme. Nairobi, Kenya: ILRI. 1–114. https://cgspace.cgiar.org/bitstream/handle/10568/3020/SLPdriversstudyfinaldraft.pdf?sequence=4.
   Google Scholar
• Hofmann, R. R. 1989. Evolutionary steps of ecophysiological adaptation and diversification of ruminants: A Comparative view of their digestive system. Oecologia 78 (3):443–57. doi:10.1007/BF00378733.
   PubMedGoogle Scholar
• Hu, F. B. 2003. Plant-based foods and prevention of cardiovascular disease: An overview. Am J Clin Nutr 78 (3):544S–551. http://ajcn.nutrition.org/content/78/3/544S.full.
   PubMed Web of Science ®Google Scholar
• Hunter, M. C., R. G. Smith, M. E. Schipanski, L. W. Atwood, and D. A. Mortensen. 2017. Agriculture in 2050: Recalibrating targets for sustainable intensification. BioScience 67 (4):386–91. doi:10.1093/biosci/bix010.
   Web of Science ®Google Scholar
• Iyayi, E., and Z. Aderolu. 2004. Enhancement of the feeding value of some agro-industrial by-products for laying hens after their solid state fermentation with trichoderma viride. African Journal of Biotechnology 3 (March):182–85.
   Google Scholar
• Jenkins, D. J. A., C. W. C. Kendall, A. Marchie, A. L. Jenkins, L. S. A. Augustin, D. S. Ludwig, N. D. Barnard, and J. W. Anderson. 2003. Type 2 diabetes and the vegetarian diet. American Journal of Clinical Nutrition 78 (3):610S–616. http://ajcn.nutrition.org/content/78/3/610S.full.
   PubMed Web of Science ®Google Scholar
• Johnson, K. A., and D. E. Johnson. 1995. Methane emissions from cattle. Journal of Animal Science 73 (8):2483–92. doi:10.2527/1995.7382483x.
   PubMed Web of Science ®Google Scholar
• Johnson, K. A., S. Polasky, E. Nelson, and D. Pennington. 2012. Uncertainty in ecosystem services valuation and implications for assessing land use tradeoffs: An agricultural case study in the Minnesota River Basin. Ecological Economics 79:Elsevier B.V.: 71–79. doi:10.1016/j.ecolecon.2012.04.020.
   Web of Science ®Google Scholar
• Joshi, V. K., K. Gupta, A. Devrajan, B. B. Lal, and S. P. Arya. 2000. Production and evaluation of fermented apple pomace in the feed of broilers. Journal of Food Science and Technology (Mysore) 37 (6):Association of Food Scientists and Technologists (India): 609–12. http://www.cabdirect.org/abstracts/20013031767.html.
   Web of Science ®Google Scholar
• Joyce, A., S. Dixon, J. Comfort, and J. Hallett. 2012. Reducing the environmental impact of dietary choice: Perspectives from a behavioural and social change approach. Journal of Environmental and Public Health 2012. doi:10.1155/2012/978672.
   Google Scholar
• Kaye, J. P., and M. Quemada. 2017. Using cover crops to mitigate and adapt to climate change. A review. Agronomy for Sustainable Development 37 (4):Agronomy for Sustainable Development: 1–17. doi:10.1007/s13593-016-0410-x.
   PubMedGoogle Scholar
• Klopfenstein, T. 1978. Chemical treatment of crop residues. Journal of Animal Science 46 (3):841–48. doi:10.2527/jas1978.463841x.
   Web of Science ®Google Scholar
• Knapp, A. K., and T. R. Seastedt. 1986. Detritus accumulation limits productivity of tallgrass prairie. BioScience 36 (10):662–68. doi:10.2307/1310387.
   Web of Science ®Google Scholar
• Lesoing, G., M. A. Schroeder, D. Shain, T. J. Klopfenstein, and J. A. Gosey. 1996. Effect of sorghum and cornstalk grazing on crop production effect of sorghum and cornstalk grazing on crop production. Nebraska Beef Cattle Reports 445.
   Google Scholar
• Macdiarmid, J. I., F. Douglas, and J. Campbell. 2016. Eating like there’s no tomorrow: public awareness of the environmental impact of food and reluctance to eat less meat as part of a sustainable diet. Appetite 96:487–93. doi:10.1016/j.appet.2015.10.011.
   PubMed Web of Science ®Google Scholar
• Manceron, S., T. Ben-Ari, and P. Dumas. 2014. Feeding proteins to livestock: Global land use and food vs. feed competition. Oilseeds & Fats Crops and Lipids 21 (4). doi: 10.1051/ocl/2014020.
   Google Scholar
• Maughan, M. W., J. P. C. Flores, I. Anghinoni, G. Bollero, F. G. Fernández, and B. F. Tracy. 2009. Soil quality and corn yield under crop-livestock integration in Illinois. Agronomy Journal 101 (6):1503–10. doi:10.2134/agronj2009.0068.
   Web of Science ®Google Scholar
• McNaughton, S. J. 1983. Compensatory Plant Growth as a Response to Herbivory. Oikos 40 (3):329–36. doi:10.2307/3544305.
   Web of Science ®Google Scholar
• Milman, O., and S. Leavenworth. 2016. China’s plan to cut meat consumption by 50% cheered by climate campaigners. The Guardian, June.
   Google Scholar
• Morton, D. C., R. S. DeFries, Y. E. Shimabukuro, L. O. Anderson, E. Arai, F. Del Bon Espirito-Santo, R. Freitas, and J. Morisette. 2006. Cropland expansion changes deforestation dynamics in the Southern Brazilian Amazon. Proceedings of the National Academy of Sciences of the United States of America 103 (39):14637–41. doi:10.1073/pnas.0606377103.
   PubMed Web of Science ®Google Scholar
• Mottet, A., C. de Haan, A. Falcucci, G. Tempio, C. Opio, and P. Gerber. 2017. Livestock: On our plates or eating at our table? A new analysis of the feed/food debate. Global Food Security 14 (January 2016):Elsevier B.V.: 1–8. doi:10.1016/j.gfs.2017.01.001.
   PubMedGoogle Scholar
• OMAFRA. 2014. Historical provincial estimates by crop, 1981-2014. Accessed October 10, 2018. http://www.omafra.gov.on.ca/english/stats/crops/estimate_hist_metric.htm.
   Google Scholar
• OMAFRA. 2017. Area, yield, production and farm value of specified field crops (Imperial and Metric Units). Accessed October 10, 2018. http://www.omafra.gov.on.ca/english/stats/crops/estimate_new.htm.
   Google Scholar
• OMAFRA. 2018. New horizons: Ontario’s agricultural soil health and conservation strategy. Accessed October 10 2018. http://www.omafra.gov.on.ca/english/landuse/soil-strategy.htm.
   Google Scholar
• Parizeau, K., M. Von Massow, and R. C. Martin. 2015. Household-level dynamics of food waste production and related beliefs, attitudes, and behaviours in Guelph, Ontario. Waste Management 35:207–17. doi:10.1016/j.wasman.2014.09.019.
   PubMed Web of Science ®Google Scholar
• Peters, C. J., J. A. Picardy, A. Darrouzet-Nardi, and T. S. Griffin. 2014. Feed conversions, ration compositions, and land use efficiencies of major livestock products in U.S. agricultural systems. Agricultural Systems 130::35–43. doi:10.1016/j.agsy.2014.06.005.
   Web of Science ®Google Scholar
• Peters, C. J., J. L. Wilkins, and G. W. Fick. 2006. Testing a complete-diet model for estimating the land resource requirements of food consumption and agricultural carrying capacity: The New York state example. Renewable Agriculture and Food Systems 22 (2):145–53. doi:10.1017/S1742170507001767.
   Web of Science ®Google Scholar
• Piñeiro, G., J. M. Paruelo, M. Oesterheld, and E. G. Jobbágy. 2010. Pathways of grazing effects on soil organic carbon and nitrogen. Rangeland Ecology & Management 63 (1):109–19. doi:10.2111/08-255.1.
   Web of Science ®Google Scholar
• Popkin, B. M. 2006. Global nutrition dynamics: The world is shifting rapidly toward a diet linked with noncommunicable diseases. The American Journal of Clinical Nutrition 84 (2):289–98. http://www.ncbi.nlm.nih.gov/pubmed/16895874.
   PubMed Web of Science ®Google Scholar
• Quested, T. E., A. D. Parry, S. Easteal, and R. Swannell. 2011. Food and drink waste from households in the UK. Nutrition Bulletin: News and Views 36:460–67. doi:10.1111/j.1467-3010.2011.01924.x.
   Google Scholar
• Rajcan, I. 2017. Personal communication. Guelph, ON: Rajcan, Istvan. Professor, University of Guelph.
   Google Scholar
• Rakkar, M. K., H. Blanco-Canqui, R. A. Drijber, M. E. Drewnoski, J. C. Macdonald, and T. Klopfenstein. 2017. Impacts of cattle grazing of corn residues on soil properties after 16 years. Soil Science Society of America Journal 81:414–24. doi:10.2136/sssaj2016.07.0227.
   Web of Science ®Google Scholar
• Russell, J. R., and J. J. Bisinger. 2015. FORAGES AND PASTURES SYMPOSIUM: Improving soil health and productivity on grasslands using managed grazing of livestock. Journal of Animal Science 93 (6):2626–40. doi:10.2527/jas2014-8787.
   PubMed Web of Science ®Google Scholar
• Russelle, M. P., M. H. Entz, and A. J. Franzluebbers. 2007. Reconsidering integrated crop-livestock systems in North America. Agronomy Journal 99 (2):325–34. doi:10.2134/agronj2006.0139.
   Web of Science ®Google Scholar
• Sainju, U. M., and B. P. Singh. 1997. Winter cover crops for sustainable agricultural systems- influence on soil properties, water quality, and crop yields. Horticultural Science 32 (1):21–28.
   Google Scholar
• Sanderson, M. A., D. Archer, J. Hendrickson, S. Kronberg, M. Liebig, K. Nichols, M. Schmer, D. Tanaka, and J. Aguilar. 2013. Diversification and ecosystem services for conservation agriculture: Outcomes from pastures and integrated crop-livestock systems. Renewable Agriculture and Food Systems 28 (2):129–44. doi:10.1017/S1742170512000312.
   Web of Science ®Google Scholar
• Sarnklong, C., J. W. Cone, W. Pellikaan, and W. H. Hendriks. 2010. Utilization of rice straw and different treatments to improve its feed value for ruminants: A review. Asian - Australasian Journal of Animal Sciences 23.5:680–92. doi:10.5713/ajas.2010.80619.
   Web of Science ®Google Scholar
• Scholefield, D., P. M. Patto, and D. M. Hall. 1985. Laboratory research on the compressibility of four topsoils from Grassland. Soil & Tillage Research 6:1–16. doi:10.1016/0167-1987(85)90002-9.
   Web of Science ®Google Scholar
• Sejian, V., J. Gaughan, L. Baumgard, and C. Prasad. 2015. Climate change impact on livestock: Adaptation and mitigation. New Delhi, India: Springer. doi:10.1007/978-81-322-2265-1.
   Google Scholar
• Serecon Management, Consulting Ltd. 2005. Canadian food trends to 2020: A long range consumer outlook. Edmonton: Agriculture and Agrifood Canada.
   Google Scholar
• Shabtay, A., H. Eitam, Y. Tadmor, A. Orlov, A. Meir, P. Weinberg, Z. G. Weinberg, Y. Chen, A. Brosh, J. Izhaki, et al. 2008. Nutritive and antioxidative potential of fresh and stored pomegranate industrial byproduct as a novel beef cattle feed. Journal of Agricultural and Food Chemistry 56 (21):10063–70. doi:10.1021/jf8016095.
   PubMed Web of Science ®Google Scholar
• Shreck, A. L. 2013. Use of alkaline treated crop residues as partial grain replacements for finishing cattle. PhD Thesis. University of Nebraska. Accessed April 10, 2019. http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1079&context=animalscidss.
   Google Scholar
• Smil, V. 2002. Worldwide transformation of diets, burdens of meat production and opportunities for novel food proteins. Enzyme and Microbial Technology 30 (3):305–11. doi:10.1016/S0141-0229(01)00504-X.
   Web of Science ®Google Scholar
• Smil, V. 2013. Should we eat meat?. In Should we eat meat?: Evolution and consequences of modern carnivory, First, 1–29. Chichester, West Sussex: John Wiley & Sons, Ltd. doi:10.1002/9781118278710.
   Google Scholar
• Smil, V. 2014. Eating meat: constants and changes. Global Food Security 3 (2):67–71. doi:10.1016/j.gfs.2014.06.001.
   Google Scholar
• Stanley, P. L., J. E. Rowntree, D. K. Beede, M. S. DeLonge, and M. L. Hamm. 2018. Impacts of soil carbon sequestration on life cycle greenhouse gas emissions in Midwestern USA beef finishing systems. Agricultural Systems 162:249–58. doi:10.1016/j.agsy.2018.02.003.
   Web of Science ®Google Scholar
• StatisticsCanada. 2008. Total farm area, land tenure and land in crops, by province. Accessed October 10, 2018. http://www.statcan.gc.ca/tables-tableaux/sum-som/l01/cst01/agrc25a-eng.htm%0D.
   Google Scholar
• StatisticsCanada. 2011. Population, urban and rural, by province and territory. Accessed October 10, 2018. http://www.statcan.gc.ca/tables-tableaux/sum-som/l01/cst01/demo62a-eng.htm%0D.
   Google Scholar
• Steinfeld, H., and P. Gerber. 2010. Livestock production and the global environment: Consume less or produce better? Proceedings of the National Academy of Sciences of the United States of America 107 (43):18237–38. doi:10.1073/pnas.1012541107.
   PubMed Web of Science ®Google Scholar
• Steinfeld, H., P. Gerber, T. Wassenaar, V. Castel, M. Rosales, and C. de Haan. 2006. Livestock’s long shadow. FAO of the UN. Accessed October 10, 2018. http://www.fao.org/docrep/010/a0701e/a0701e00.HTM.
   Google Scholar
• Sulc, R. M., and B. F. Tracy. 2007. Integrated crop-livestock systems in the U.S. corn belt. Agronomy Journal 99 (2):335–45. doi:10.2134/agronj2006.0086.
   Web of Science ®Google Scholar
• Tallentire, C. W., S. G. Mackenzie, and I. Kyriazakis. 2018. Can novel ingredients replace soybeans and reduce the environmental burdens of european livestock systems in the future? Journal of Cleaner Production 187 (June):338–47. doi:10.1016/J.JCLEPRO.2018.03.212.
   Google Scholar
• The Nielson Company. 2016. Ingredient inspectors: consumers embrace dietary diligence. August. Accessed April 14, 2019. https://www.nielsen.com/ca/en/insights/news/2016/ingredient-inspectorsconsumers-embrace-dietary-diligence.html.
   Google Scholar
• Tracy, B. F., and Y. Zhang. 2008. Soil compaction, corn yield response, and soil nutrient pool dynamics within an integrated crop-livestock system in Illinois. Crop Science 48 (3):Crop Science Society of America: 1211. doi:10.2135/cropsci2007.07.0390.
   Web of Science ®Google Scholar
• Twerdoff, D. A., D. S. Chanasyk, M. A. Naeth, V. S. Baron, and E. Mapfumo. 1999. Soil water regimes of rotationally grazed perennial and annual forages. Canadian Journal of Soil Science 79 (4):627–37. doi:10.4141/S99-027.
   Web of Science ®Google Scholar
• Van Haveren, B. P. 1983. Soil bulk density as influenced by grazing intensity and soil type on a shortgrass prairie site. Journal of Range Management 36 (5):586–88. doi:10.2307/3898346.
   Google Scholar
• van Zanten, H. H. E., H. Mollenhorst, C. W. Klootwijk, C. E. van Middelaar, and I. J. M. de Boer. 2016. Global food supply: Land use efficiency of livestock systems. The International Journal of Life Cycle Assessment 21 (5):Springer Berlin Heidelberg: 747–58. doi:10.1007/s11367-015-0944-1.
   Web of Science ®Google Scholar
• Warren, S. D., W. H. Blackburn, and C. A. Taylor. 1986. Soil hydrologic response to number of pastures and stocking density under intensive rotation grazing. Journal of Range Management 39 (6):500–04. doi:10.2307/3898757.
   Google Scholar
• Weil, R., and N. Brady. 2017. Soil erosion and its control. In The nature and property of soils, 15th ed., 818–78. Harlow, Essex: Pearson. https://www.pearson.com/us/higher-education/program/Weil-Nature-and-Properties-of-Soils-The-15th-Edition/PGM219427.html.
   Google Scholar
• Whitehead, D. C., and N. Raistrick. 1993. The volatilization of ammonia from cattle urine applied to soils as influenced by soil properties. Plant and Soil 148 (1):43–51. doi:10.1007/BF02185383.
   Web of Science ®Google Scholar
• WHO. 2017. Double burden of malnutrition. Accessed October 10, 2018. http://www.who.int/nutrition/double-burden-malnutrition/en/.
   Google Scholar
• WHO/FAO/UNU Expert Consultation. 2007. Protein and amino acid requirements in human nutrition. World Health Organization Technical Report Series 935:1–265. ISBN 92 4 120935 6.
   Web of Science ®Google Scholar
• Wilkinson, J. M. 2011. Re-Defining Efficiency of Feed Use by Livestock. Animal 5 (7):1014–22. doi:10.1017/S175173111100005X.
   PubMed Web of Science ®Google Scholar
• Woods, D. 2017. Personal communication. Guelph, ON: Woods, Drew. Swine Nutritionist, Nutreco.
   Google Scholar
• Wright, C. K., and M. C. Wimberly. 2013. Recent land use change in the Western Corn Belt Threatens Grasslands and Wetlands. PNAS 110 (10):4134–39. doi:10.1073/pnas.1215404110.
   PubMed Web of Science ®Google Scholar
• Wyngaarden, S. L., A. C. M. Gaudin, W. Deen, and R. C. Martin. 2015. Expanding Red Clover (Trifolium Pratense) Usage in the Corn-Soy-Wheat Rotation. Sustainability (Switzerland) 7:11. doi:10.3390/su71115487.
   Web of Science ®Google Scholar
• Zaman, M. S., and E. Owen. 1995. The effect of calcium hydroxide and urea treatment of barley straw on chemical composition and digestibility in vitro. Animal Feed Science and Technology 51 (1–2):165–71. doi:10.1016/0377-8401(94)00669-Z.
   Web of Science ®Google Scholar
• Zervas, G., and E. Tsiplakou. 2012a. An assessment of GHG emissions from small ruminants in comparison with GHG emissions from large ruminants and monogastric livestock. Atmospheric Environment 49:Elsevier Ltd: 13–23. doi:10.1016/j.atmosenv.2011.11.039.
   Web of Science ®Google Scholar
• Zervas, G., and E. Tsiplakou. 2012b. An assessment of GHG emissions from small ruminants in comparison with GHG emissions from large ruminants and monogastric livestock. Atmospheric Environment 49 (March):13–23. doi:10.1016/j.atmosenv.2011.11.039.
   Google Scholar