维生素C对笼养蛋雏鸭的生产性能和机体抗氧化能力的影响(英文)  

Effects of Dietary Vitamin C on Growth Performance and Anti-oxidative Ability of Laying Ducklings in Cage

作　　者：谢富[1] 王安[1] 王艳辉[1] 武江利[1] 

机构地区：[1]东北农业大学动物营养研究所,哈尔滨150030

出　　处：《动物营养学报》2008年第5期572-578,共7页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：National Natural Science Foundation of China(30571345)

摘　　要：本文旨在研究玉米-豆粕型日粮添加不同水平维生素C( VC)对笼养蛋鸭育雏期(1 ～28日龄)的生产性能和抗氧化能力的影响。试验采用单因素随机分组设计的方法,选用1日龄平均体重相近的金定蛋雏鸭288只,随机分为6组(各处理日粮中分别添加VC 0、150、300、400、800、1 400 mg/kg),每组6个重复,每个重复8只鸭,结果表明:①在笼养蛋鸭育雏期添加150 ～1 400 mg/kg VC能显著提高日增重、饲料效率和抗氧化能力,显著降低丙二醛( MDA)的浓度(P<0.05)。②5日龄,日粮添加800 mg/kg VC时血清和肝脏中超氧化物岐化酶(SOD)、过氧化氢酶(CAT)、总抗氧化能力(T-AOC)的活性最高;28日龄,日粮添加300 ～400 mg/kg VC时血清和肝脏中SOD、CAT和T-AOC活力较高;28日龄血清和肝脏抗氧化指标高于5日龄。③大剂量的VC对蛋鸭的生产性能和机体的抗氧化指标都有降低的趋势。因此在本试验条件下得出:笼养蛋雏鸭日粮中适当添加VC可提高生产性能和机体抗氧化能力,1 ～5日龄日粮添加VC800 mg/kg,6 ～28日龄添加VC300 ～400 mg/kg为适宜。The experiment was conducted to study the effects of dietary vitamin C（VC） on performance and anti-oxidative ability of ducklings in cage. Two hundred and eighty-eight 1-day-old Jinding ducklings were randomly allotted into six groups with six replicates each and eight ducks in each replicate. Six groups were fed with diets added with 0, 150, 300, 400, 800, 1 400 mg/kg VC respectively. The experiment lasted for 4 weeks. The results showed that：①the contents of MDA was decreased significantly and the ADG, FE and anti-oxidative ability were increased significantly for diets added with 150-1 400 mg/kg VC（P〈0.05） ②the group which added with 800 mg/kg VC had the highest content of SOD, CAT and T-AOC in serum and liver on 5 d, and the contents of SOD, CAT, and T-AOC in serum and liver were higher in groups supplemented with 300-400 mg/kg VC on 28 d. The anti-oxidative ability was better on 28 d than that on 5 d;③moreover, the performance and anti-oxidative ability were deceased as the dietary VC levels increased. So appropriate levels of VC could improve the performance and anti-oxidative ability, and the optimal levels of laying ducklings in cage of 1-5 days was 800 mg/kg, and 6-28 days was 300-400 mg/kg respectively.

关 键 词：VC 笼养蛋雏鸭 生产性能 抗氧化能力 

分 类 号：S834[农业科学—畜牧学] TS275.5[农业科学—畜牧兽医]