1. AFRC, 1993. Energy and Protein Requirements of Ruminants. CAB International, Wallingford.
2. Allen, J.G., Tudor, G.D., Petterson, D.S., 1998. The feeding of lupin grain can cause rumen acidosis and rumenitis. In: Garland, T., Barr, A.C. (Eds.), Toxic Plants and Other Natural Toxicants. CAB International, Wallingford.
3. AOAC, 2000.In: Horwotz, W. (Ed.), Official Methods of Analysis of the AOAC International, 17th Edition, Vols. 1 and 2. AOAC International, Gaitherburg, MD, USA.
4. ARC, 1984. The nutrient requirements of ruminant livestock. Supplement no 1. Report of the protein group of the Agricultural Research Council working party on the nutrient requirements of ruminants. Commonwealth Agricultural Bureaux, Farnham Royal, Slough.
5. Analysis of 3-(N-oxalyl)-l-2,3-diaminopropanoic acid and its α-isomer in grass pea (Lathyrus sativus) by capillary zone electrophoresis;Arentoft;J. Agric. Food Chem.,1995