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2 kg g. L/ton L/ton (d.b.) 3. Small Rectangular Baler 1. Acid detergent fiber (ADF) 2. Neutral detergent fiber (NDF)

3 mm cm cm g ± g 1. Baler

4 (g) (w.b.) (w.b.) W i Wa We F Mstat-C SPSS S.N.K. SPSS Ma W a = [( +M i )/( W i + )]*100 W e = [( +M i )/( W i + )]*100 g (g) (g) Me M i

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11 REFERENCES 1. Andrewes, L.D. & B. N. McPherson Comparison of different types of materials for broiler litter. Poultry Science 41 : Anonymous FAOSTAT Database Results. Available on the www: 3. Bamaga, O.A., T. C. Thakur, & M. L. Verma Laboratory investigation into the wetting of baled wheat straw stack with urea solution for ammonaition. Transaction of the ASAE, 45(1): Chenost, M. & C. Kayouli Roughage utilization in warm climates. FAO Animal Production and Health Paper 135. Rome. 5. Cottyn, B.G. & J. L. Boever Upgrading of straw by ammoniation. Anim. Feed. Sci. Technol., 21: Hadjipanayiotou, M. & S. Economides Assessment of various treatment conditions affecting the ammoniation of long straw by urea. Livestock Research for Rural Development. Vol. 9 number Jackson, M.G Treating straw for animal feeding. FAO Animal Production and Health Paper Mansoory, R. D Tractor and farm machinery. 2 nd Ed. Hamedan university pub. 9. Nguyen, X.T., C. X. Dan, L. V. Ly, & F. Sundstol Effect of utrea concentration, moisture content, and duration of treatment on chemical composition of alkali treated rice straw. Livestock Research for Rural Development. Vol. 10 number 1, january. 10. Raisianzadeh, M., R. Faizi, A. Abbasi & H. Monaazami Acceptability of urea treating straw project by sheep breeders in Khorasan province. In: proceedings 2 nd conferences of Sheep and Goat. Animal Science Research Institute. Ministry of Jihad-e-agriculture. Karaj. Iran. 11. Summers, M.D., S. L. Blunk, & B. M. Jenkins How Straw Decomposes. EBNet Straw Bale Test Program Available on the DRAFT 12/8/ Ward, P. L., J. E. Wohlt, P. K. Zajac, & K. R. Cooper Chemical and physical properties of processed newspaper compared to wheat straw and wood shavings as animal bedding. Journal of Dairy Science. Vol. 83:

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Aerodynamic Properties of Wheat Kernel and Straw Materials

1 Aerodynamic Properties of Wheat Kernel and Straw Materials M. H. Khoshtaghaza and R. Mehdizadeh Assistant professor and graduate student of Agricultural Machinery Engineering Dept., Tarbiat Modares University,