| This study conducted to research the effect of replacing Mushroom Cultivation Spent (MCS) instead the barley in Awassian lambs ration on some physiology and biochemical characteristics. Mushroom (Pleurotus ostreatus) spent collected from Agriculture College - Tikrit's university mushroom farm, dried then mixed with rations. Thirty five local Awassian male lambs with aged 5.5-6.5 months were distributed in five treatments with seven lambs in every treatment of it, and were housing to individual cages. The treatments groups were as follows: First treatment as a control (with no addition), and second third, fourth and fifth treatment with 5, 10, 15 and 20 % of MCS, the barley was minimized for every treatment ration group in order to maintain fixed percentage of protein 14%. The blood was collected of jugular vein in the 35 and 70 days for physiologic and biochemical tests, the results showed significantly increase (P≤0.05) the white blood cells count, lymphocyte and high density lipoprotein cholesterol, also the results was showed significantly decrease (P≤0.05) in the neutrophil, packed red cells volume, red blood cells count, as well as the results was showed significantly decrease (P≤0.05) too in the total protein, albumin, total globulin and urea. The results of cholesterol was showed significantly decrease (P≤0.05) too in total cholesterol, tri glyceride, low density lipoprotein cholesterol, very low density lipoprotein cholesterol and aspartate amino transfer-ase AST. |