University of Khartoum

Utilization of Sorghum Millet Legume by- Products as Animal Feeds in Kordofan Sudan

Utilization of Sorghum Millet Legume by- Products as Animal Feeds in Kordofan Sudan

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Title: Utilization of Sorghum Millet Legume by- Products as Animal Feeds in Kordofan Sudan
Author: Khalafalla,Khalifa ELTayeb
Abstract: The study was conducted to evaluate chemical composition, digestibility coefficients and nutritive values of the most available agricultural by-products (sorghum, millet and legume residues (cowpeas, groundnuts) in Kordofan region as dry season feeds. Residues of the above crops were formulated into 4 types of rations: ration A (100% millet straw), ration B (100% sorghum straw), ration C (50% millet straw + 50% legume straw) and ration D (50% sorghum straw + 50% legume straw) Six Sudan Desert sheep, ranging 8-10 months in age and weighing 19-28 kg were used in the study. The animals were divided into two groups according to their weight and they were given first rations A and B, followed by rations C and D respectively. The experiment lasted for 26 days, 10 preliminary period and 3 days collection period. Mineral and vitamin premixes were added during all the period of the experiment The results indicated that millet resides (ration A) contained a higher amount of crude protein and gross energy (kj/kg) which were equal to 4.09 and 19.48 respectively compared to sorghum residues ration B) which contained (3.39, 16.l8) respectively. Although ration A contained a higher amount of crude protein (p< (0.05) and gross energy (p<0.0l) than ration B, it showed a lower dry matter and crude protein digestibilities than ration B. This was mainly attributed to the high lignin content (5.35%) of ration A compared to ration B which contained only 3.6%. Rations C and D showed better digestibility values with regard to the dry matter (86.86, 87.85) land protein (76.32, 76.67 ) and ether extract (85. 86, 74.60 ) respectively,than rations A and B which showed (80.80, 81.34) for dry matter,(62. 0 3 , 64.40 ) for crude protein and (60.59, 54.40 ) for ether extract. This improvement in digestibility coefficients of' the blended rations (C and D) was mainly attributed to the higher values of the above nutrients in these rations. Cell wall digestibility (NDFD) of ration A (59.31) was not significantly different (p<0.01) from that of ration C (58.25), in contrast, that of ration B (48.57) was significantly different (p<0.05) from that or ration B (57.61). This variation in the cell wall digestibility of these rations was mostly attributed to the weak association between fibre, lignin and digestibility in forage growing in mid-summer or under tropical conditions (Van Soest, 1987). Rations C and D significantly showed better total digestible nutrients (65.01, 48. 68) and digestible crude protein (5.79, 5.27) than rations A and B (p< 0.05) which contained (50.63, 42.3) total digestible nutrients and (2.52, 2.19) digestible crude protein, respectively. This was reflected in greater daily feed consumption (kg) by rams fed raions C and D (1.10, 1.089) than those fed racions A and B (0.889, 0.950) respectively. Also daily weight of rams fed rations C and D were increased by 4.25% and 2.28% respectively when compared with those fed rations A and B. In addition feed conservation values of rations C and D (10.48, 18.46) were more better ( p < .005 ) than that of rations A and B (44.45, 52.78 ) respectively. It appears that millet-legume residuses (ration C) was better than sorghum-legume residues (ration D) with regard to the feed consumption and performance
URI: http://khartoumspace.uofk.edu/handle/123456789/15247
Date: 2015-06-28


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