期刊
ARCHIVES OF ANIMAL NUTRITION
卷 74, 期 4, 页码 296-308出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/1745039X.2020.1743607
关键词
Grape pomace; growth performance; intestinal microbiota; weaned piglets
资金
- Jilin Scientific and Technological Development Program [20170307018NY, 20190301034NY]
- Special Project of the Province-University Coconstructing Program of Jilin Province [SXGJXX2017-4]
- Jilin Modern Agricultural Technology Demonstration and Extension Project, P.R. China
Grape pomace (GP) is an abundant by-product from wine production and is rich in phenolic compounds, unsaturated fatty acids, dietary fibre and beneficial bacteria. In this study, weaned piglets were fed a basic diet supplemented with 5% GP for 4 weeks. Compared with those in the control (CON) group, it was found that the proportion of Lactobacillus delbrueckii, Olsenella umbonata and Selenomonas bovis in the caecum and the villus height and villus height/crypt depth ratio (VCR) of the jejunum were both significantly increased in the GP group (p < 0.05). Meanwhile, at the mRNA expression level, several proinflammatory cytokines (IL-1 beta, IL-8, IL-6 and TNF-alpha) were significantly downregulated (p < 0.05) in piglet caecal tissue, and the short-chain fatty acid receptors (GPR41 and GPR43) were not significantly upregulated. In contrast, the levels of IgG was significantly increased (p < 0.05) in the sera of weaned piglets in the GP group. However, no difference in growth performance between the two groups of piglets was detected. These results show that GP had no adverse effects on the growth performance of piglets, but GP can promote the content of some beneficial bacteria in the caecum; this effect is conducive to improving the disease resistance potential of piglets.
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