Twenty Barki rams with average body weight 42.8 kg were used in a complete randomized design with five treatments to evaluate the nutritive value of treated moringa stalks (MS) under solid state conditions with fungi (Trichoderma reesei), yeast (Cellulomonas cellulasea) and bacteria (Cellulomonas cellulasea) comparing with untreated MS as a positive control and berssem hay as a negative control. Results revealed that DM, OM, CF, EE, NFE, and ADL contents in biological treated MS were lower than untreated MS. However, the CP, ash, NDF, hemicellulose, and cellulose contents were higher in treated MS compared with untreated MS. DM intake was higher in group fed treated MS than untreated MS. All biological treatments resulted in a significant (P<0.05) higher digestibility of all nutrients compared with untreated MS. The impact of biological treatments was more obvious with the yeast treatment on TDN and DCP comparing with the other treatments and untreated MS. All groups showed positive nitrogen retained value except that group fed untreated MS showed negative value. Water utilization, rumen fermentation and biochemical blood constituents were also investigated.