Effects of different levels of Elaeagnus angustifolia with and without enzyme on the growth performance, immune system and some biochemical blood parameters of broiler chicken

To evaluate the effects of Elaeagnus Angustifolia (EA) and enzyme on serum biochemistry parameters of broiler chicken, 288 one-day-old male Ross 308 broilers were randomly allocated to 32 cages for 8 dietary treatments with 4 replicates. This experiment were done in a completely randomized design with 4*2 factorial trial involved 4 levels of EA (0, 0.75, 1.5 and 3% EA) and 2 levels of Enzyme (0, 0.05% of Natozyme plus). The data were shown that EA were improved the body weight and feed conversion ratio. Dietary treatment did not affect the triglyceride, and HDL of broiler fed with EA and Enzyme at 28d; but the concentration of LDL and cholesterol was significantly affected, so that the LDL and cholesterol concentration were higher when birds fed 3% EA as compared to birds fed control(P