Molecular characterization, developmental expression, and modulation of occludin by early intervention with Clostridium butyricum in Muscovy ducks

文献类型： 外文期刊

第一作者： Lyu, Wentao

作者： Lyu, Wentao;Yang, Hua;Li, Na;Xiao, Yingping;Li, Na;Yang, Caimei;Jin, Peihua;Lu, Lizhi

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关键词： Muscovy duck; occludin; Clostridium butyricum; gene expression

期刊名称：POULTRY SCIENCE （ 影响因子：3.352； 五年影响因子：3.679 ）

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年卷期： 2021 年 100 卷 8 期

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收录情况： SCI

摘要： Occludin is an important component of tight junction proteins and has been extensively studied in animals such as mice, chickens, geese, and pigs. As one of the most important waterfowl species in China, Muscovy duck (Cairina moschata) is an important economic animal for meat. However, research on the occludin gene in Muscovy duck is lacking. In the present study, Muscovy duck occludin cDNA was cloned for the first time. The length of the cDNA was 1,699 bp, and it showed a high sequence similarity with the Anser cygnoides domesticus and Gallus gallus occludin genes. The occludin gene was differentially expressed in the tissues of healthy ducks. The highest and lowest expressions of occludin were observed in the crop and the spleen, respectively. After the oral administration of Clostridium butyricum (CB), the occludin expression in the ileum of 7-day-old Muscovy ducks was significantly upregulated and subsequently showed a decreasing trend in 14-day-old Muscovy ducks. Under the early intervention of CB, no significant difference was observed in the occludin expression of cecum between the control and CB group. Collectively, these results suggest that CB plays an important role in regulating the expression of the occludin gene in Muscovy ducks, and adding CB in feed may maintain the intestinal barrier of ducks by regulating the expression of occludin.

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