Quellenangabe: 

• American College of Veterinary Nutrition, www.acvn.org
• National Research Council of the National Academies;  For documents on the nutrient requirements of animals, www.nationalacademies.org/nrc/
• Henneke Body Condition Scal
• Nutrient Requirements of Horses Calculator, nrc88.nas.edu/nrh/
• Horse Report, Center for Equine Health, School of Veterinary Medicine
• "Equine Nutrition and Feeding" von David Frape
• Journal of Equine Veterinary Science