| 维生素D对蛋雏鸭生长性能及免疫功能的影响 |
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| 引用本文： | 解俊美,王安,苏莉娜,张伟明,王思维,刘肖挺.维生素D对蛋雏鸭生长性能及免疫功能的影响[J].中国饲料,2012(18):18-21. |
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| 作者姓名： | 解俊美 王安 苏莉娜 张伟明 王思维 刘肖挺 |
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| 作者单位： | 东北农业大学动物营养研究所 |
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| 摘 要： | 试验选取1日龄健康、体重相近的金定蛋雏鸭180只,随机分为5个处理组,每个处理6个重复,每个重复6只试鸭。采用玉米-豆粕型基础饲粮,Ⅰ组试验鸭饲喂基础饲粮,Ⅱ～Ⅴ组分别饲喂在基础饲粮中添加110、220、550、1000 IU/kg维生素D的试验饲粮,试验期4周。旨在研究不同维生素D添加水平对1～28日龄蛋雏鸭生长性能及免疫功能的影响,以探讨维生素D的适宜添加量。结果表明,添加550 IU/kg维生素D能显著提高蛋雏鸭平均日增重、降低料重比(P<0.05),显著提高IgA、IgG、T3、T4含量(P<0.05),并显著降低Cort含量(P<0.05)。由此可见,在玉米-豆粕型基础饲粮中添加适量的维生素D可提高蛋雏鸭生长性能及免疫功能。通过二次回归模型分析,估测蛋雏鸭日粮中维生素D的适宜添加量为523.1～560.6 IU/kg。
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| 关 键 词： | 维生素D 蛋雏鸭 生长性能 免疫功能 |
Effects of vitamin D on growth performance and immune function in egg-type ducklings |
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| Institution: | Xie Junmei,Wang An,Su Lina,et al. |
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| Abstract: | The experiment was conducted to study the effects of different dietary vitamin D levels on growth performance and immune function of egg-type ducklings for 1 ～ 28 days of age,and to estimate the optimal dietary vitamin D level.A total of 180 one-day-old egg-type ducklings were randomly allocated to 5 treatments with 6 replicates of 6 Group Ⅰ was fed with corn-soybean meal-based diet(control diet),and group Ⅱ ～ Ⅴ were fed with control diets supplemented with 110,220,550,1000 IU/kg vitamin D,respectively.The experiment lasted for 4 weeks.The results showed as follows:the average daily gain of supplementation of 550 IU/kg vitamin D was significantly improved and the ratio of feed to gain was reduced(P < 0.05).The content of IgA/G,T3,T4 of supplementation of 550 IU/kg vitamin D was improved and the content of Cort was reduced(P < 0.05).The results indicated that the basal diet supplemented with moderate level of vitamin D could significantly improve the egg-type ducklings growth performance and immune function.The optimum levels of vitamin D was 5231.1 ～ 560.6 IU/kg by quadratic regression model analysis. |
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| Keywords: | vitamin D egg-type ducklings growth performance immune function |
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