动物营养学报2019，Vol.31Issue(6)：2642-2650,9.DOI:10.3969/j.issn.1006⁃267x.2019.06.024
饲粮维生素K3添加水平对五龙鹅胫骨发育、免疫器官指数及抗氧化性能的影响
Effects of Dietary Vitamin K3 Supplemental Level on Tibia Development, Immune Organ Index and Antioxidant Capacity of Wulong Geese
摘要
Abstract
This experiment was conducted to study the effects of dietary vitamin K3 supplemental level on tibia development, immune organ index and antioxidant capacity of Wulong geese. This experiment was divided into two stages, in 1 to 4 weeks of age stage, a total of 360 one?day?old Wulong geese were selected and randomly divided into 6 groups with 6 replicates in each group and 10 geese in each replicate. Geese in groupⅠ( control group) were fed a basal diet ( vitamin K3 content was 1.23 mg/kg) ; and the others in groups Ⅱ to Ⅵ were fed the basal diets supplemented with 1, 2, 4, 8 and 16 mg/kg vitamin K3, respectively. In 5 to 16 weeks of age stage, a total of 288 twenty?eight?day?old Wulong geese were selected and randomly divided into 6 groups with 6 replicates in each group and 8 geese in each replicate. Geese in group Ⅰ( control group) were fed a basal diet ( vitamin K3 content was 1.18 mg/kg) ; and the others in groups Ⅱ to Ⅵ were fed the basal diets supplemented with 2, 4, 8, 16 and 32 mg/kg vitamin K3, respectively. The experiment lasted for 16 weeks. The results showed as follows: 1) compared with the control group, in 1 to 4 weeks of age stage, dietary sup?plemented with 4 mg/kg vitamin K3 significantly increased the crude ash content, bone mineral density, bone strength and bone weight in tibia ( P＜0.05 ) , and significantly increased the contents of calcium and phosphorus in tibia ( P＜0.01) ; in 5 to 16 weeks of age stage, dietary supplemented with 8 mg/kg vitamin K3 significantly increased the crude ash, calcium and phosphorus contents and bone mineral density, bone strength in tibia ( P＜0.01) , and the bone trabecula and osteoblast developed better. 2) Dietary supplemented with vita?min K3 had no significant effects on the thymus index, spleen index and bursa of Fabricius index ( P＞0.05). 3) Compared with the control group, in 1 to 4 weeks of age stage, dietary supplemented with 4 mg/kg vitamin K3 significantly increased the serum total superoxide dismutase ( T?SOD) activity, significantly decreased the serum malondialdehyde ( MDA) content ( P＜0.05) , and significantly increased the serum total antioxidant ca?pacity ( T?AOC) ( P＜0.01) ; in 5 to 16 weeks of age stage, dietary supplemented with 8 mg/kg vitamin K3 significantly increased the serum T?SOD and catalase ( CAT ) activities, significantly decreased the serum MDA content ( P＜0.05) , and significantly increased the serum T?AOC ( P＜0.01). In conclusion, the supple?mentation of 4 and 8 mg/kg vitamin K3 in the diet of Wulong geese during 1 to 4 weeks of age and 5 to 16 weeks of age can increase the crude ash, calcium and phosphorus contents and bone mineral density, bone strength of tibia, and improve the development of tibia. It also can increase the T?SOD activity and T?AOC in serum, reduce the serum MDA content, and improve the antioxidant capacity of Wulong geese.[ Chinese Jour?nal of Animal Nutrition, 2019, 31(6) :2642?2650]关键词
维生素K3/五龙鹅/胫骨发育/免疫器官指数/抗氧化性能Key words
vitamin K3/Wulong geese/tibia development/immune organ index/antioxidant capacity分类
农业科技引用本文复制引用
徐燕红,殷太岳,王宝维,王晓伟,李文立..饲粮维生素K3添加水平对五龙鹅胫骨发育、免疫器官指数及抗氧化性能的影响[J].动物营养学报,2019,31(6):2642-2650,9.基金项目
国家水禽技术产业体系( CARS⁃43⁃11) （ CARS⁃43⁃11）
