动物营养学报2012，Vol.24Issue(9)：1819-1824,6.DOI:10.3969/j.issn.1006-267x.2012.09.028
饲粮维生素D添加水平对蛋雏鸭免疫及抗氧化功能的影响
Effects of Dietary Vitamin D Level on Immune and Antioxidant Functions of Egg-Type Ducklings
摘要
Abstract
This experiment was conducted to investigate the effects of dietary vitamin D level on immune and antioxidant functions of egg-type ducklings aged 1 to 28 days, and to estimate the optimal dietary vitamin D level. A total of 180 one-day-old healthy Jinding egg-type ducklings with the similar body weight were randomly assigned to 5 groups with 6 replicates per group and 6 ducklings per replicate. The ducklings in the group I (control group) were fed a basal diet (corn-soybean meal-based diet) , and those in groups II to V were fed the basal diet supplemented with 110, 220, 550 and 1 000 IU/kg vitamin D, respectively. The experiment lasted for 4 weeks. The results showed as follows: supplementation of 550 IU/kg vitamin D significantly increased the thymus and spleen indices (P<0.05) , and improved the activities of superoxide dis-mutase (SOD) and glutathione peroxidase (GSH-Px) in liver (P<0.05) , while reduced the contents of in-terleukin-2 (IL-2) in serum and malondialdehyde (MDA) in serum and liver (P<0.05). Supplementation of 220 and 550 IU/kg vitamin D both significantly increased the contents of total-protein (TP) and albumin (ALB) in serum (P< 0.05) , and improved the activities of SOD and GSH-Px in serum (P<0.05) and total anti-oxidant capability (T-AOC) in serum and liver (P<0.05). These results indicate that corn-soybean meal-based diet supplemented with moderate level of vitamin D can increase the egg-type ducklings immune and antioxidant functions. Based on the various indicators, the optimal vitamin D supplemental levels estimated by quadratic regression model analysis are 512. 8 to 550. 0 IU/kg. [ Chinese Journal of Animal Nutrition, 2012, 24(9) : 1819-1824]关键词
维生素D/蛋雏鸭/免疫功能/抗氧化功能Key words
vitamin D/ egg-type duckling/ immunie function/ antioxidant function分类
农业科技引用本文复制引用
解俊美,王安..饲粮维生素D添加水平对蛋雏鸭免疫及抗氧化功能的影响[J].动物营养学报,2012,24(9):1819-1824,6.基金项目
国家自然科学基金(30972111) （30972111）
