Effects of coated sodium butyrate on growth performance, intestinal morphology, and caecal short-chain fatty acids of growing Pekin ducks

文献类型： 外文期刊

第一作者： Ji, Z. Q.

作者： Ji, Z. Q.;Hao, Y. S.;Wang, Y. T.;Zhang, B.;Tang, J.;Huang, W.;Zhang, Q.;Hou, S. S.;Xie, M.;Wang, Y. T.;Xie, M.

作者机构：

关键词： Ducks; coated sodium butyrate; growth performance; intestinal morphology; short-chain fatty acids

期刊名称：BRITISH POULTRY SCIENCE （ 影响因子：2.0； 五年影响因子：2.2 ）

ISSN： 0007-1668

年卷期： 2023 年 64 卷 4 期

页码：

收录情况： SCI

摘要： 1. A dose-response experiment with six supplemental levels of coated sodium butyrate (CSB) (0, 250, 500, 750, 1,000, and 1,250 mg/kg) was conducted to investigate its effects on growth performance, intestinal morphology, and caecal short-chain fatty acids of growing Pekin ducks aged 14 to 35 d. A total of 288 male 14-d-old Pekin ducks were randomly allocated to six dietary treatments. Each treatment had eight replicate pens of six ducks per pen.2. The daily weight gain, daily feed intake, and feed/gain of ducks from 14 to 35 d of age were not influenced by increasing CSB levels. The relative weight and length of the duodenum, jejunum, and caecum increased linearly or quadratically as supplemental CSB increased (P < 0.05).3. For the ileum and caecum, the villus height and height/crypt depth increased linearly or quadratically, and the villus crypt depth decreased linearly as the supplemental CSB increased (P < 0.05). As supplemental CSB increased, the goblet cell numbers of the ileum increased and decreased and changed quadratically (P < 0.05), but caecal goblet cell number increased quadratically (P < 0.05). Increasing the CSB level linearly or quadratically elevated the concentrations of propionic acid and butyric acid in the caecum (P < 0.05).4. It was concluded that CSB can be used as a safe and effective feed additive to promote the intestinal integrity of growing ducks by improving intestinal morphology and increasing the concentration of caecal short-chain fatty acids.

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