1.
McDonald P. Animal nutrition. 7th ed. Harlow: Prentice Hall/Pearson; 2011.
2.
Alderman G, Cottrill BR, Agricultural and Food Research Council. Energy and protein requirements of ruminants: an advisory manual prepared by the AFRC Technical Committee on Responses to Nutrients. Wallingford: CAB International; 1993.
3.
Ørskov ER, Ryle M. Energy nutrition in ruminants. London: Elsevier; 1990.
4.
Ørskov ER. Protein nutrition in ruminants. Second edition. London: Academic Press; 1992.
5.
Ørskov ER. The feeding of ruminants: principles and practice. 2nd ed. Welton: Chalcombe Publications; 1998.
6.
Agricultural Research Council. The nutrient requirements of ruminant livestock: technical review by an Agricultural Research Council working party. Slough: Published on behalf of the Agricultural Research Council by Commonwealth Agricultural Bureaux; 1980.
7.
National Research Council (U.S.). Nutrient requirements of dairy cattle [Internet]. 7th rev. ed. Washington, D.C.: National Academy Press; 2001. Available from: https://www.nap.edu/read/9825/chapter/1
8.
Joshi NP, Herdt TH, International Conference on Production Disease in Farm Animals. Production diseases in farm animals: 12th international conference. Wageningen: Wageningen Academic Publishers; 2006.
9.
Underwood EJ, Suttle NF. The mineral nutrition of livestock. 3rd ed. Wallingford, Oxon: CABI Pub; 1999.
10.
The RUMNUT Computer Package, version 5.2 manual [Internet]. Available from: http://www.chalcombe.co.uk/rumnut.htm
11.
Frape D. Equine nutrition and feeding. 4th ed. Chichester, West Sussex, U.K.: Wiley-Blackwell; 2010.
12.
Geor RJ, Harris PA, Coenen M, editors. Equine applied and clinical nutrition: health, welfare and performance [Internet]. Edinburgh: Saunders Elsevier; 2013. Available from: https://ezproxy.lib.gla.ac.uk/login?url=https://www.sciencedirect.com/science/book/9780702034220
13.
Fraser AF, Broom DM. Farm animal behaviour and welfare. 3rd ed. London: Baillière Tindall; 1990.
14.
Poole TB, Robinson R, Universities Federation for Animal Welfare. The UFAW handbook on the care and management of laboratory animals. 6th ed. Harlow: Longman Scientific & Technical; 1987.
15.
Agar S. Small animal nutrition. Oxford: Butterworth-Heinemann; 2001.
16.
Hand MS, Lewis LD. Small animal clinical nutrition. 4th ed. Topeka, Kan: Mark Morris Institute; 2000.
17.
Case LP, ScienceDirect (Online service). Canine and feline nutrition: a resource for companion animal professionals [Internet]. 3rd ed. Maryland Heights, Mo: Mosby; 2011. Available from: https://ezproxy.lib.gla.ac.uk/login?url=https://www.sciencedirect.com/science/book/9780323066198
18.
McNamara JP. Principles of companion animal nutrition. Upper Saddle River, N.J.: Pearson/Prentice Hall; 2006.
19.
Our resources | NC3Rs [Internet]. Available from: http://www.nc3rs.org.uk/our-resources
20.
Suttle NF. Mineral nutrition of livestock. 4th ed. Wallingford, Oxfordshire, UK: CABI; 2010.