الفهرس | Only 14 pages are availabe for public view |
Abstract The present study was carried out at Dep. of poultry and fish production, faculty of Agriculture, Shibin El-kom, Menoufia University. The experiment was conducted from February 2017 until June 2018. The experiment was designed to study the relationship between the immune response to sheep red blood cells and the activity of some endogenous antioxidant enzymes on some physiological and productive traits in Norfa chickens. In this experiment, 75 chickens of the Norfa strain were used in the immune response test. Chicken was injected with 0.1 cm sheep red blood cells. A serum sample was withdrawn from each chicken after 7 days of injection with sheep blood cells (SRBC). High immunity, low immunity group, and control group were determined. The results were discussed and summarized in the following points: 1- The relationship between immune response to SRBC and endogenous antioxidant enzymes in Norfa chickens: 1-1-The highest activity of the catalase enzyme was found in the low immunity group (647.490 ± 29.613). The lowest activity of the catalase enzyme (CAT) was in the high immunity group (321.539 ± 12.183), while control group was medium between the two groups (399.218 ± 6.439). 1-2- The highest activity of the superoxide dismutase (SOD) was found in the low immunity group (636.358 ± 6.565) and the lowest activity of the (SOD) enzyme was found in the high immunity group (355.193 ± 32.311), while the control group was moderate between the two groups (544.750 ± 5.320). 1-3- When analyzing the results of oxidative stress (malondialdehyde) for the three Norfa chicken groups. |