A total number of 21 growing lambs rearing in Mallawy Research Station with
an average of 4-5 months old and 17.30 kg. body weight an average were used in this
study. Lambs were assigned randomly to three diets for 100 days. The experimental
diets were manipulated to replace the concentrate feed mixture (CFM) by 0,20, and
40 % of dried filter cake, OFC for treatments (01, 02 and 03) respectively. The control
diet (01) was composed of CFM, berseem hay and wheat straw, whereas in the other
2 diets (02 and 03), 20 % and 40 % of CM were replaced by OFC, respectively. At
the end of the experiment blood samples were taken from each lamb and analyzed for
estimation of metal content (Iron, Fe; copper, Cu, zinc, Zn; manganese, Mn; nickel, Ni;
cadmium, Cd; chromium, Cr and lead, Pb) by using atomic absorption
spectrophotometer. As well as physical measurements of the wool for its
characteristics (greasy & clean fleece weight, stable length, fiber ~ end diameter)
were studied. The obtained results revealed that addition of DFC to the rations did not
significantly alter the concentrations of Fe, Cu. Zn. Mn,. N. Cd, Cr, and Pb, except a
significant effect (p < 0.05) between 02. ard 03 treatments in nid The corresponding figures for wool measurements also, were not significant