الفهرس 
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Abstract
The main objectives of the present study were to investigate the effect of feeding Sesbania forage (fresh or silage) as a sole feed or mixed with chopped whole maize plants (fresh or silage) at 0,50 or 100% on nutrients digestibility coefficients and nutritive value of the tested rations by sheep. After the nutritional evaluation of tested materials, a feeding trial was conducted on lactating goats to study the effect of feeding Sesbania silage, corn silage and their mixture (50:50%) along with concentrate feed mixture, CFM (50% of requirements)on their productive performance as well as three digestion trials were carried out to evaluate the previous rations with bucks. from the foregoing results, it could be concluded that utilization of Sesbania forage or the mixture of Sesbania and corn silage in sheep and goat (bucks) rations gave approximate results with whole maize plants (fresh or silage) in terms of nutrients digestibility coefficients and nutritive value(DCP%) of tested rations. Sheep appears to be more efficients in utilizing the tested forages compared to goats (bucks)e.g. the tested forages were covered the CP and TDN for maintenance requirements for sheep and goats, in spite of that the tested forages were fed as a sole feeds without CFM in case of sheep. In addition, using Sesbania silage and their mixture with whole corn silage in lactating goats rations gave a promising results in terms of milk yield and its composition without any adverse effect on blood metabolites and animal health in general.