Campbell R, Taverner M, Curic D. 1985. Effects of sex and energy intake between 48 and 90 kg live weight on protein deposition in growing pigs. Anim Prod 40:497–503.
Caro D, Davis SJ, Bastianoni S, Caldeira K. 2014. Global and regional trends in greenhouse gas emissions from livestock. Clim Change 126:203–216.
Dämmgen U, Schulz J, Klausing HK, Hutchings NJ, Haenel H-D, Rösemann C. 2012. Enteric methane emissions from German pigs. Landbauforschung 62:83–96.
Gerber PJ, Steinfeld H, Henderson B, Mottet A, Opio C, Dijkman J, Falcucci A, Tempio G. 2013. Tackling climate change through livestock: A global assessment of emissions and mitigation opportunities. Food and Agriculture Organization of the United Nations (FAO); Rome, Italy:
Hörndahl T. 2008. Energy use in farm buildings. Faculty of Landscape Planning, Horticulture and Agricultural Science, Report 2008:8. Swedish University of Agricultural Sciences; Alnarp, Sweden:
Jørgensen H, Knudsen KEB, Theil PK. 2011. Enteric methane emission from pigs. Planet Earth 2011 - Global Warming Challenges and Opportunities for Policy and Practice. Carayannis EG, editorInTech Europe; Rijeka, Croatia: p. 605–623.
KFSS (Korean Feeding Standard for Swine). 2007. National Livestock Research Institute, RDA, Ministry of Agriculture and Forestry; Sejong, Korea:
Kyriazakis I. 2011. Opportunities to improve nutrient efficiency in pigs and poultry through breeding. Animal 5:821–832.
Lammers P, Honeyman M, Harmon J, Helmers M. 2010. Energy and carbon inventory of Iowa swine production facilities. Agric Syst 103:551–561.
Le Goff G, Dubois S, Van Milgen J, Noblet J. 2002. Influence of dietary fibre level on digestive and metabolic utilisation of energy in growing and finishing pigs. Anim Res 51:245–259.
Lee HJ, Lee SC. 2003. National methane inventory relevant to livestock enteric fermentation. J Anim Sci Technol 45:997–1006.
Lim BR, Cho GJ, Jung YH, Yang JK, Lee SK. 2011. Estimation of greenhouse gas emission from livestock wastewater treatment plants. J Korea Soc Waste Manag 28:175–183.
MacLeod M, Gerber P, Mottet A, Tempio G, Falcucci A, Opio C, Vellinga T, Henderson B, Steinfeld H. 2013. Greenhouse gas emissions from pig and chicken supply chains–A global life cycle assessment. Food and Agriculture Organization of the United Nations (FAO); Rome, Italy:
Nam J-J, Yoon Y-M, Lee Y-H, So K-H, Kim C-H. 2008. Life cycle assessment of greenhouse gas emissions from livestock and food wastes co-digestive biogas production system. Korean J Environ Agric 27:406–412.
National Research Council (NRC). 1998. Nutrient Requirements of Swine. 10th EdNatl Acad. Press; Washington, DC, USA:
Philippe F-X, Laitat M, Wavreille J, Nicks B, Cabaraux J-F. 2015. Effects of a high-fibre diet on ammonia and greenhouse gas emissions from gestating sows and fattening pigs. Atmos Environ 109:197–204.
Portejoie S, Dourmad J-Y, Martinez J, Lebreton Y. 2004. Effect of lowering dietary crude protein on nitrogen excretion, manure composition and ammonia emission from fattening pigs. Livest Prod Sci 91:45–55.
Steinfeld H, Gerber P, Wassenaar T, Castel V, Rosales M, Haan CD. 2006. Livestock’s long shadow: environmental issues and options. Food and Agriculture Organization of the United Nations (FAO); Rome, Italy:
Tauson AH, Chwalibog A, Jakobsen K, Thorbek G. 1998. Pattern of protein retention in growing boars of different breeds, and estimation of maximum protein retention. Arch Anim Nutr 51:253–262.
Varley M. 2009. Taking control of feed conversion ratio. Pig Progress 25:22–23.