MODIFYING A THRESHER FOR ENSILING THE GREEN RICE STRAW BY SHREDDING

Basiouny, Mohamed A.; Ghanem, G. H. A.

doi:10.21608/mjae.2010.105836

MODIFYING A THRESHER FOR ENSILING THE GREEN RICE STRAW BY SHREDDING

Document Type : Original Article

Authors

¹ Researcher, Ag. Eng. Res. Inst., Dokki, Giza, Egypt.

² Prof., animal production Res. Inst., Dokki, Giza, Egypt.

10.21608/mjae.2010.105836

Abstract

A specific modification was done in this study to convert the function of the thresher to be suitable for shredding the green rice straw to be prepared after that as a silage. The indicators of shredder (modified thresher or shredding machine) performance were studied under the effect of different levels of feed rate, shredding cylinder speed, concave clearance ratio and bulk density of the shredded green rice straw. The most important results showed that at higher shredding efficiencies of green rice straw, the silage characteristic might be improved. In addition, the reduction percentage from the highest to the lowest shredding efficiency was of 3.41% and all the values were very close to each other. The lowest cost for producing of one megagram from shredded green rice straw was of 14.05LE and the consumed energy for the unit was of 5.632kW.h/Mg at feed rate of 300kg/h, shredding cylinder speed of 18.4m/s and concave clearance ratio of 1.0. During ensiling process, the bulk density of 66.5kg/m³ has achieved a preferable results for silage temperature and its quality in comparison with the two other bulk densities.

Main Subjects

Agricultural Power and Machinery Engineering

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