Anderson, D. C. 1987. Use of cereal residues in beef cattle production system. J. Anim. Sci. 46:849-860.
Antongiovanni, M., C. Sargentini, 1991. Variability in chemical composition of straw. Options mediterraneenes serrie seminaries. 49-53.
AOAC. 2000. Official Methods of Analysis. 17th ed. Association of Official Analytical Chemists, Gaithersburg, MD.
Baintol, S. J., V. E. Plume, B .O. Juliano, C. M. Perez, D. B . Roxas, G. S. Khush, 1991. Variation in the nutritional value of rice straw. Anim. Feed. Sci. Technol. 34:261-277
Blummel M. and Becker K (1997) The degradability characteristics of fifty-four roughages and roughage neutral-detergent fibers as described by in vitro gas production and their relationship to voluntary feed intake. British Journal of Nutrition. 77: 757-768.
Capper B. C., E. F. Thomson, S. Rihaui, A. Termanini and R. Marceat, 1986. The feeding value of straw different genotypes of barley when given to Awassi sheep. Anim. Prod., 42:337-342.
Capper B.S. 1988. Genetic variation in the feeding value of cereal straw. Anim. Feed Sci. Technol. 21:127–140
Chen, X. B. 1995. Neway Excel: An Excel Application Program for Processing Feed Degradability data, Rowett Research Institute, Bucksburn, Aberdeen, UK.
Chriyaa, A. and A. Amri, 1997. Straw quality evaluation of barley cultivars for livestock feeding. Proceedings of the symposium on Recent Advances on Ruminant Nutrition, October 24-26, 1996, Rabat Morocco.
Dias-da-silva, A. A. and C. V. M. Guedes, 1990. Variability in the nutritive value of straw cultivars of wheat, rye and triticale and response to urea treatment. Anim. Feed Sci. Technol. 28: 79-89.
Flachowsky, G.x IBM SPSS Statistics, Release, 11.5, 2002. IBM SPSS Statistics, Release, 11.5, 2002
Kamalzadeh, A. Rajabbaigy, M. and Kiasat, A. 2008. Livestock Production Systems and Trends in Livestock Industry in Iran. Journal of Agriculture and Social Sciences. Vol. 4, No. 4, 183-188
Kernan, J. A., W. L. Crowle, E. Spur and E. C. Coxworth, 1979. Straw quality of cereal cultivar before and after treatment with anhydrous ammonia. Can. J. Anim. Sci. 59:511-517.
Khazaal, K., K. Houcheimi, H. Mashlab and S. Hajj Hassan, 2001. The nutritive value of available varieties of barley straw in Lebanon: effects of feeding barley straw of three varieties on liveweight gain in Awassi lambs. In, Nutrition and feeding strategies of sheep and goats under harsh climates. Proceedings of the 9th Seminar of the FAO-CIHEAM Sub-network on Sheep and Goat Nutrition,Tunisia. November 8-10.
Menke, K. H. and H. Steingass, 1988. Estimation of the energetic feed value obtained from chemical analysis and in vitro gas production using rumen fluid. An. Res. Develop., Separate print 28, 7-55.
Nygaard D. 1983. Tests on farmer's fields: The ICARDA experience. Proceedings of the First Farming Systems Research Symposium, Kansas State University, Manhattan, Kansas, USA. pp. 76-98.
Orskov E. R. and McDonald, I. 1979. The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. Journal of Agriculture Science. 92:499-503.
Orskov, E. R., C. A. G. Tait, G. W. Reid, and G. Flachowsky, 1988. Effect of straw quality and Ammonia treatment on voluntary intake, milk yield and degradation characteristic of faecal fiber. Anim. Prod. 46:23-27.
Orskov, E. R., W. J. Shand, D. Tedesco and L. A. Morrice, 1990. Rumen degradation of straw. Consistency of differences in nutritive value between varieties of cereal straws. Anim. Prod. 51:155-162.
Ramanzin M., Orskov E.R., Tuah AK. 1986. Rumen degradation of straw .2. Botanical fractions of straw from 2 barley cultivars. Anim Prod 1986;43:271
Rao, S. 1989. Regional environmental and cultivar effect on the quality of wheat straw. Agron. J. 81:939-949.
Shand, W. J., E. R. Orskov and L. A. F. Morrice, 1988. Rumen degradation of straw. Botanical fraction and degradability of different varieties of oat and wheat straw. Anim . Prod ., 47 : 378-392.
Shand, W. J., E. R. Orskov, 1987. Studies on botanical proportion and nutritive value of cereal straw and the ability of sheep to select the botanical part with the greatest value. Anim. Prod. 46:480 (Abstract).
Theander, O., and P. Aman. 1984. Anatomical and chemical characteristics. In Sundstol, F., Owen, E. (Eds.) Straw and other Fibrous By-products as Feed. Elsevier, Amsterdam. p. 45–78.
Tolera, A., Berg, T. and Sundstøl, F. 1999. The effect of variety on maize grain and crop residue yield and nutritive value of the stover. Animal Feed Science and Technology. 79, 165–177
Van Soest P. J., Robertson, J. B. and Lews, B. A. 1991. Methods of dietary fiber, neutral detergent fiber and non-starch polysaccharides in relation to animal nutrition. Journal of Dairy Science. 74:3583.
Van Soest, P. J. 1994. Nutritional ecology of the ruminants. Cornell University.
Whire, L. W., G. P., Hanman, and J. W. Bergman, 1981. In vitro degradation, crude protein and phosphorus content of straw of winter wheat, spring wheat, Barley and oat cultivars in eastern Montana. Agron. J. 73:111-121.