1. North American rendering—processing high quality protein and fats for feed;Meeker;Revista Brasileira De Zootecnia—Brazilian Journal of Animal Science,2009
2. D.L. Meeker, Essential Rendering—All About The Animal By-Products Industry, National Renderes Association, Arlington, 2006. Available from: http://assets.nationalrenderers.org/essential_rendering_book.pdf.
3. National Renderers Association, 2012. Available from: http://nationalrenderers.org/economic/statistics/.
4. Market report industry savors record prices and growing global demand;Swisher;Render Magazine,2012
5. Data for the carbon footprinting of rendering operations;Gooding;Journal of Industrial Ecology,2012