الفهرس 
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Abstract
The experimental work of the present study was carried out in the farm of Animal Production Department, Faculty of Agriculture, Minia University during the period of may 2014 to January 2016. This study was carried out in two experiments in-vitro and in-vivo trials, to evaluate sugar beet pulp (SBP) as a feed ingredient. Sugar beet pulp (SBP) is the by-product of sugar extracting industry from sugar beet. The crude protein content of SBP is 9.16% ±1.21. While it’s In-vitro dry matter disappearance (IVDMD) is 58.85% ±0.76. Increasing the IVDMD and organic matter disappearance (IVOMD) of SBP either by fungus treatment (Trichoderma Harzianum, T.H) or supplementation with urea (2%) to in rich it’s N content was the aim of this work. Three in-vitro experiments were conducted in this study. Nine multiparous lactating buffaloes were served in this experiment after two weeks from parturition. They were assigned into three equal groups each of three animals. These three groups fed three tested rations in a Latin square design (3×3). The tested rations were treatment 1(100% concentrate feed mixture that contain 15% wheat straw, total mixed ration, TMR), treatment 2(60% TMR+40% SBP 2% urea) and treatment 3(60% TMR+40% SBP treated with Trichoderma H.). The treatments of sugar beet pulp with fungi (SBPT. H) and (2%USBP) its inclusion in lactating buffaloes ration at 40% level was the most effective treatment studied.