Aminullah, M. 1996. Improving the Nutritive Value of Cereal Straw by Treatment With Urea and Urease Containing Plant Extract. M. Sc. Thesis. Dept. of Animal Nutrition. Bangladesh
Agricultural University, Mymensingh, Bangladesh. AOAC. 1990. Official Methods of Analysis. 15th edn. Association of Official Analytical Chemists, Arlington, Virginia.
ARC. 1990. The Nutrient Requirements of Ruminant Livestock. 4th edn. CAB International, Wallingford, pp. 73-310.
Dias, A. A., M. A. Ferrenia and Cristinr V. N. Gwedes. 1988. Effect of moisture level, treatment time and soybean addition on the nutritive value of urea treated maize stover. Anim. Feed Sci. Technol. 19:67-77.
Djajanegara, A. and P. T. Doyle. 1989. Urea supplementation compared with pretreatment: I. Effects on intake, digestion and live-weight change by sheep fed a rice straw. Anim. Feed Sci. Technol. 27-30.
FAO. 1990. Production year book. Food and Agricultural Organization of United Nations. FAO Statistics Series, Rome, Italy, Vol. 52. p. 64.
Goto, M. 1995. Ammoniation of barley straw; effect on anatomical and physiochemical characteristics of the cell walls. Ann. Zootech. 44, 70.
Hossain, S. A. and M. S. Rahman. 1981. Comparative feeding value of urea treated and untreated paddy straw. In:Proceedings of the second annual seminar on Maximum Livestock Production from Minimum Land. Bangladesh Agricultural University, Mymensingh. pp. 225-233.
Ibrahim, M. N. M., A. M. U. Wajerame and M. J. I. Costa. 1985. Effect of different sources of urease on the treatment time and digestibility of urea-ammonia treated rice straw. Agric. Wastes. 13:197-205.
Jayasuriya, M. C. N. and H. G. D. Prera. 1981. Urea-ammonia treatment of rice straw to improve the nutritive value for ruminants. Agricultural Wastes. (In press).
Jayasuriya, M. C. N. and G. R. Pearce. 1983. The effect of urease enzyme on treatment time and the nutritive value of straw treated with ammonia as urea. Anim. Feed Sci. Technol. 6:123-131.
Joy, M., F. Munoz, X. Alibes. and J. D. Andueza. 1996. Effect of moisture content and addition of ureases on the effectiveness of urea treatment. ITEA-Prod. Anim. 1996, 92A:1, 11-20, 34.
Khan, M. J., J. R. Scaife and F. D. Hovell. 1999. The effect of different sources of urease enzyme on the nutritive value of wheat straw treated with urea as a source of ammonia. Asian-Aus. J. Anim. Sci. 12:1063-1069.
Kiangi, E. M. I., J. A. Kategible and F. Sundstol. 1981. Different sources of ammonia for improving the nutritive value of low quality roughages. Anim. Feed Sci. Technol. 6:377-386.
Leng, R. A. 1984. Supplementation of tropical and subtropical pasture for ruminant production. In: Herbivore Nutrition in Subtropics and Tropics (Ed. F. C. M. Gilchrist and R. I. Mackie). The Science Press, Graghall, South Africa. pp. 129-144.
Males, J. R. 1987. Optimizing the utilization of cereal crop residues for beef cattle. J. Anim. Sci. 65:1124-1130.
Saadullah, M., M. Haque. and F. Dolberg. 1981b. Treated and untreated rice straw to growing cattle. In: Proceedings of the Second Annual Seminar on Maximum Livestock Production from Minimum Land. Bangladesh Agricultural University, Mymensingh, Bangladesh. pp. 136. 155.
Sarwar, M., M. A. Iqbal, C. S. Ali and K. Tanweer. 1994. Growth performance of buffalo male calves as affected by using cowpea and soybean seeds as a source of urease during ureatreated wheat straw ensiling process. Anim. Feed Sci. Technol. 32:23-28.
Sharma, D. D. and K. K. Singh. 1988. Processing of complete feeds for ruminants. In: Proceding of National Seminar cum Workshop and Exhibition on Dairy products and Equipments. IDA, Delhi, India.
Silva, A. T. and E. R. Orskov. 1988. The effect of five different supplements on the degradation of straw in sheep given untreated barley straw. Anim. Feed Sci. Technol. 19:289-298.
Singh, G. P. and S. J. Oosting. 1991. Nutritive value of straw. In:Proceedings of International Workshop, National Dairy Research Institute (NDRI), Karnal, Haryana, India.
Tareque, A. M. M. and M. Saadullah. 1988. Feed availability requirements and current pattern of utilization in Bangladesh. In: Proceeding on Non Conventional Feed Resources and Fibrous Agricultural Residues (Ed. C. Devendra). Hisar, India. pp. 116-130.
Tiwari, S. P., U. B. Singh and U. R. Mehra. 1988. Urea mineral molasses block as feed supplement on digestibility and growth in buffalo calves. In: Abstract of Symposium on Latest Research Trends, in Livestock and Poultry. 53:31.
Walli, K. T., K. T. Sampath, S. N. Rai. and S. Tamminga. 1993. Feeding of ruminants on fibrous crop residues (Ed. Singh K. and J. Schiere). In: Proceedings Int. Workshop held at the NDRI on the Aspect of treatment, feeding, nutrient evaluation, research and extension. Haryana, India. Feb. 4-8. 1991. pp.157-168.
Wanapat, M. 1983. Improving the rice straw quality as ruminant feed by urea treatment in Thailand (Ed. M. Wanapat and C. Devendra). In: Proceedings of the International Conference on the Relevance of Crop Residues as Animal Feed in Developing Countries. Khon Kaen University, Khon Khaen, Thailand, Funny Press, Bangkok. pp. 147-175.
Wanapat, M. 1990. Review on buffalo feeding trial in Thailand. In:Nutritional Aspects of Ruminant Production in South-East Asia with special reference to Thailand (Ed. M. Wanapat). Thailand. p. 30.