الخلاصة

Twenty Arrabi lambs were used (5-6 month of age and 24 kg average body weight) they were randomly allocated into four equal groups to investigate the effect of adding Baker's yeasts (Sacchromyses Cervisiae) 0.25%, 0.50% and 0.75% and Black seeds (Nigella Sativa) 0.25%, 0.50% and 0.75% on some blood and biochemical traits for 60 days at Animal Resources Department Farm /College of Agriculture/ University of Kufa. The adding levels was for each of them with ratio (1:1) per ton of diet and used a control diet (0% adding ) .Results showed Significant increase (P<0.05) to adding S.Cerevisiae and Nigella sativa thus superiority was in group4 (0.75% each ) in Hb, PCV% and Total protein in blood and significant decrease in blood content of cholesterol and triglycerides compared with the others treatments.