| V_A对生长蛋鸭脂质过氧化作用及抗氧化机能的影响 |
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| 引用本文： | 张养东,王安,武江利.V_A对生长蛋鸭脂质过氧化作用及抗氧化机能的影响[J].东北农业大学学报,2008,39(11). |
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| 作者姓名： | 张养东 王安 武江利 |
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| 作者单位： | 东北农业大学动物科学技术学院,哈尔滨,150030 |
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| 摘 要： | 研究日粮中不同VA水平(0、2250、5500、8250、12000和15000IU·kg-1)对生长蛋鸭脂质过氧化作用及抗氧化机能的影响。试验采用单因素随机区组试验设计,选用28日龄平均体重(0.45±0.01)kg的金定蛋鸭216只,随机分为6个处理组,试验期为42d。结果表明,日粮中添加不同水平的V(A2250、5500、8250、12000和15000IU·kg-1)均可显著提高试鸭血清及肝脏中GSH-Px活力和SOD活力(P<0.05);添加5500IU·kg-1和8250IU·kg-1的VA可显著提高试鸭血清及肝脏中T-AOC和降低脂质过氧化反应产物MDA的含量(P<0.05),但当VA添加量至12000IU·kg-1和15000IU·kg-1时,试鸭血清及肝脏中T-AOC有所下降,并且GSH-Px活力和SOD活力与5500IU·kg-1和8250IU·kg-1组相比也明显降低。因此,日粮中添加5500IU·kg-1和8250IU·kg-1VA能显著提高机体的抗氧化能力和降低机体的脂质过氧化水平,添加12000IU·kg-1和15000IU·kg-1水平不利于VA在生长蛋鸭上发挥其抗氧化作用。
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| 关 键 词： | VA 生长蛋鸭 脂质过氧化 抗氧化 |
Effect of vitamin A on lipid peroxidation and antioxidation function in growing ducks |
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| ZHANG Yangdong,WANG An,WU Jiangli.Effect of vitamin A on lipid peroxidation and antioxidation function in growing ducks[J].Journal of Northeast Agricultural University,2008,39(11). |
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| Authors: | ZHANG Yangdong WANG An WU Jiangli |
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| Institution: | ZHANG Yangdong,WANG An,WU Jiangli (Animal Nutrition Institute,Northeast Agricultural University,Harbin 150030,China) |
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| Abstract: | The paper studied the effects of different dietary vitamin A levels (0, 2 250, 5 500, 8 250, 12 000 and 15 000 IU·kg-1)on lipid peroxidation and antioxidation function in growing ducks. Total 216 Jinding ducks, with an average weight of (0.45 ±0.01) kg, were used and randomly allotted into 6 treatments with 6 replications of 6 ducks. The study lasted for 42 days. The results showed that GSH-Px and SOD activities of serum and liver were increased evidently (P<0.05) as different vitamin A levels(2 250, 5 500, 8 250, 12 000 and 15 000 IU·kg-1)were added into the diet; T-AOC of serum and liver was increased significantly (P<0.05) and serum and liver MDA concentrations were decreased significantly (P<0.05) as adding 5 500 IU·kg-1 and 8 250 IU·kg-1 VA to the diet. When adding 12 000 IU·kg-1 and 15 000 IU·kg-1 VA to the diet, T-AOC of serum and liver and GSH-Px and SOD activities of serum and liver decreased obviously than that of adding 5 500 IU·kg-1 and 8 250 IU·kg -1 VA to the diet. It is concluded that ducks will evidently increase antioxidant ability and decrease the level of lipid peroxidation when added 5 500 IU·kg-1 and 8 250 IU·kg-1 VA to the diet, but all the items showed that the level of VA 12 000 IU·kg-1 and 15 000 IU·kg-1 were against the antioxidation for growing ducks. |
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| Keywords: | VA |
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