Abstract
The aim of this study was to know of the effect of adding black tea powder residues to poultry diets. In this experiment ,120 birds were divided into three groups, each group was 4 replicates. The groups were control group (black tea residues powder was not added to the feed). first treatment group (added black tea residues powder at a ratio of 60 mg/ kg of feed. Second treatment group (added black tea residues powder at a ratio of 160 mg/ kg of feed). Blood samples were collected at the end of the experiment to measure packed cell volume (P.C.V), hemoglobin (H b) , total white blood cell count (W.B.C), total red blood cell account (R.B.C), also to calculated cho-lesterol low density lipoprotein (LDL), high density lipopro-tein(HDL) , glucose and the levels of productive characteristic weekly such as average of weight rate ,adequate increase ,the aver-age of feed consumption and the rate of food conversation .Then we measured the levels of antioxidant enzymes such as SOD (super ox-ide dismutase ), MDA (malondialdehyde), CAT (Catalas), GST (glu-tathione transferase (SSH( )Glutathion peroxidase (The result showed that there is significant P≤0.05 effect of added black tea res-idues powder on the level of antioxidant enzymes ,and there is effect in lowering of cholesterol , glucose. there is no significant effect of added black tea residues powder on the level of H b, P.C.V, R.B.C. and W.B.C.