| 摘要: |
| 【目的】研究银杏叶提取物（EGB）对断奶仔猪免疫功能的调节作用。【方法】将160头25日龄的“杜×长×大”三元杂交断奶仔猪随机分为4组，每组4个重复，每重复10头。第1组为对照组，饲喂基础日粮；第2、3、4组分别饲喂基础日粮中添加质量分数0.1%，0.2%或0.3% EGB的试验日粮。试验期为28 d，分别于第14和28天采集血样，测定断奶仔猪的免疫功能指标。【结果】与对照组相比，日粮中添加质量分数0.2%或0.3% EGB可显著提高断奶仔猪血液红细胞数、淋巴细胞数、血红蛋白质量浓度和淋巴细胞百分率（P<0.05），促进血清免疫球蛋白IgG、IgM、IgA和补体C3、C4的生成以及细胞因子IL-2、IFN-γ的分泌（P<0.05）。【结论】日粮中添加质量分数0.2%或0.3%EGB可增强断奶仔猪的免疫功能。 |
| 关键词: 银杏叶提取物 断奶仔猪 免疫功能 |
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| 基金项目:福建省科技计划重点项目(2010N0024)；福建省高校服务海西建设重点项目(闽教高［2009］8号) |
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| The modulatory role of Ginkgo biloba extract on improving the immune function of weaned piglets |
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| Abstract: |
| 【Objective】The experiment was conducted to investigate the modulatory effects of Ginkgo biloba extract (EGB) on improving the immune function of weaned piglets.【Method】160 weaned crossbred piglets (Duroc×Landrace×Large Yorkshire) with age of 25 days were randomly divided into 4 groups,each with 4 replicates and 10 piglets per replicate.The control group were fed with a basal diet while the other three groups were fed with the same basal diet but supplemented with 0.1%,0.2%,and 0.3% EGB,respectively.The experiment lasted 28 days.On the 14th and 28th day,blood samples were collected and used to represent immune function.【Result】Compared to the control group,adding 0.2% EGB or 0.3% EGB to diets of weaned piglets significantly increased red blood cells,lymphocytes,the contents of hemoglobin and the ratios of lymphocyte.In weaned piglets fed with diets supplemented with 0.2% or 0.3% EGB,the production of serum IgG,IgM,IgA,complement C3 and C4,and the secretion of IL-2,and IFN-γ increased as well (P＜0.05).【Conclusion】Adding 0.2% or 0.3% EGB to diets of weaned piglets could enhance their immune function. |
| Key words: Ginkgo biloba extract weaned piglets immune function |
