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