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Effects of dietary Clostridium butyricum on the growth performance and intestinal health of hybrid groupers (Epinephelus lanceolatus male x E. fuscoguttatus female)

文献类型: 外文期刊

作者: Yang, Keng 1 ; Xun, Pengwei 2 ; Huang, Jianbin 1 ; Jiang, Kui 4 ; Huang, Xiaolin 1 ; Yu, Wei 1 ; Xu, Chuangwen 4 ; Lin, Heizhao 1 ;

作者机构: 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangdong Prov Key Lab Fishery Ecol & Environm, Key Lab South China Sea Fishery Resources Exploita, Guangzhou 510300, Guangdong, Peoples R China

2.Xinyang Agr & Forestry Univ, Coll Fisheries, Xinyang 464000, Peoples R China

3.Chinese Acad Fishery Sci, Shenzhen Base South China Sea Fisheries Res Inst, Shenzhen 518121, Peoples R China

4.Guangzhou Xinhailisheng Biotechnol Co Ltd, Guangzhou 510300, Guangdong, Peoples R China

关键词: Hybrid grouper; Clostridium butyricum; Growth performance; Immune function; Intestinal microbiota

期刊名称:AQUACULTURE REPORTS ( 影响因子:3.7; 五年影响因子:3.8 )

ISSN: 2352-5134

年卷期: 2023 年 30 卷

页码:

收录情况: SCI

摘要: This trial was performed to investigate the effects of Clostridium butyricum on growth and intestinal health of hybrid groupers (Epinephelus lanceolatus male x E. fuscoguttatus9). 300 hybrid groupers were fed five diets containing C. butyricum at 0, 1 x 107, 2 x 107, 3 x 107, 4 x 107 CFU/g for 8 weeks. The results revealed that dietary C. butyricum significantly increased weight gain rate (WGR), specific growth rate (SGR) and relative feed intake (RFI) (P < 0.05). Moderate C. butyricum significantly promoted lipase (LPS), chymotrypsin (CTS), alpha amylase (alpha-AMS), total antioxidant capacity (T-AOC) activities and up-regulated intestinal manganese superoxide dis-mutase (MnSOD), catalase (CAT), glutathione peroxidase (GPx), interleukin10 (IL-10), transforming growth factor beta (TGF-beta), zonula occludens protein-2 (ZO-2), zonula occludens protein-3 (ZO-3), Occludin and Claudin-3a mRNA levels, while significantly decreased malondialdehyde (MDA) content and down-regulated intestinal Kelch-like-ECH-associated protein 1 (Keap1) and interleukin 8 (IL-8) mRNA levels (P < 0.05). 1 x 107 CFU/g C. butyricum significantly augmented villus length, muscle thickness and goblet cells in intestine of hybrid groupers (P < 0.05). 1 x 107 CFU/g C. butyricum significantly increased richness and diversity of intestinal microbiota (P < 0.05) and abundance of beneficial bacteria. Meanwhile, 1 x 107 CFU/g C. butyricum decreased the risk of conditional pathogenic bacteria to invade the host.

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