1. Andrae, J.G., Horn, G.W., Buchanan, D.S., Bowen, C, 1995. Effect of salt intake in a monensin containing energy supplement on rumen fermentation of steers grazing wheat pasture. Animal Science Research Report, No. P 943, Agricultural Experiment Station, Oklahoma State University, pp. 145–150.
2. AOAC, 1984. Official Methods of Analysis, 14th ed. Association of Official Analytical Chemists, Washington, DC.
3. Effect of monensin on metabolic profile testing in buffalo heifer;Badawy;Egypt. J. Vet. Sci.,1996
4. The use of monensin or formaldehyde to control the digestion of the nitrogenous constituents of perennial rye grass and white colour in the rumen of cattle;Beever;Br. J. Nutr.,1987
5. Blaxter, K.L., 1962. The Energy Metabolism of Ruminants. Thomas, Springfield, IL, 258 pp.