1. Transit time and digestibility of two experimental diets in the maned wolf (Chrysocyon brachyurus) and domestic dog (Canis lupus);Childs-Sanford;Zoo Biology,2006
2. Centraal Veevoederbureau (CVB) 2004. Het EWpa en VREp system. CVB documentatierapport No. 31. (In Dutch) Centraal Veevoederbureau, Lelystad, The Netherlands.
3. The use of plant wax alkanes as marker substances in studies of the nutrition of herbivores: A review;Dove;Australian Journal of Agricultural Research,1991
4. An improved procedure for the determination of chromic oxide in feed and faeces;Fenton;Canadian Journal of Animal Science,1979
5. Food & Drug Administration (FDA) 2016. Summary of color additives for use in the United States in foods, drugs, cosmetics, and medical devices online. Retrieved on 5 October 2016 from http://www.fda.gov/ForIndustry/ColorAdditives/ColorAddtiveInventories/ucm115641.htm#table1A.