University of Khartoum

Chemical Composition and in Situ Dry Matter Degradability of Stover Fractions of Five Sorghum Varieties

Chemical Composition and in Situ Dry Matter Degradability of Stover Fractions of Five Sorghum Varieties

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Title: Chemical Composition and in Situ Dry Matter Degradability of Stover Fractions of Five Sorghum Varieties
Author: Nor Eldaim, Niemat I.; Fadel Elseed, A.M.A.
Abstract: The nutritive value was studied on stover of five sorghum varieties. Three improved varieties, CR 35-18 (Wad Ahmed), M- 90393 (Tabat), HD-1 (Hageen) and two local races, Himaecy and Fetrita, were collected from the Gezira Scheme, Sudan, during the period of November to December 2005.The whole stover was separated into stem and leaves (leaf blade and sheath). The evaluation was based on morphological proportion, chemical composition, and in situ dry matter degradability. Stem contribution to whole stover was significantly varied from 65.4% for Himaecy to 35.1% for Fetrita. No significant difference in crude protein (CP) content between the sorghum stover fractions. The stem tended to have a lower ash and silica content compared to leaves. Acid detergent fiber (ADF) and cellulose levels were higher (P<0.05) in stem than in leaves. The degradable fraction b and degradation rate (c) were higher for leaves than stem. The effective degradability (ED) at all out flow rates were higher for leaves than stem. In conclusion, leaf blades and sheath have the lowest cell wall content and therefore, the higher degradability indicating a higher potential feeding value of leaves than stems. Therefore, varieties with high proportion of leaves ranked higher in nutritive values
URI: http://khartoumspace.uofk.edu/handle/123456789/17622
Date: 2015-12-14


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