Effect of add exogenous fibrolytic enzymes to the ration in some characteristics of blood biochemicals of Awassi lactating ewes

The experiment was conducted in the field of animal production of the research ruminants- Office of Research- Ministry of Agriculture in the region of Akrokov 25 km northwest of Baghdad for the period from 16/3/2016 to 4/6/2016, and the objective of the experiment was the effect of addition of different levels of fibrolytic enzymes. The concentrate diet on some characteristics biochemical blood lactating Ewes Awassi, In the first experiment, 26 pregnant sheep were used In the late stage and before birth and at the age of 3-5 years, With a weight of 67 kg, The first experiment lasted 42 days preceded by 10 days introductory period The ewes were divided into four groups, each with 6 ewes, of which 15 were born, Treatment control 3 ewes, first treatment 5 ewes, second treatment 4 ewes, third treatment 3 ewes, The trial period was divided into three successive periods from birth every 14 days, The first period of 0-14 days and the second period of 15-28 days and the third period of 29 to 42 days of the milk cycle began, Control group without enzyme and treatment of the first, second and third enzyme concentration 1,3,5 kg/t respectively. The preliminary period is 10 days ahead, The results showed that: The addition of fibrolytic enzymes to the cencenterate diet of the fodder resulted in Significant increase (P<0.01) was observed at the general rate of concentration of urea, The concentration of urea was significantly increased only in T3, while cholesterol was significantly higher in all treatments compared to the control treatment. And significantly increased triglycerides in T2 compared to all other treatments. Very high-density lipoprotein was increased in T1 treatment with control treatment C, as well as significant increase (P≤0.05) high-density lipoprotein in treatment T1 compared to treatment control C and the recording of high-density lipoprotein (HDL) significantly higher in T2 compared to all treatments triglyceride, and very high-density lipoprotein, (P<0.05) for high density lipoprotein (LDL) and low-density lipoprotein. LDL was significantly increased in T3 compared to T1. The serum AST (T3) was significantly increased in T3 compared to T2, T1 in the serum of lactating ewes.