您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Effects of dietary host-associated Lactococcus lactis on growth performance, disease resistance, intestinal morphology and intestinal microbiota of mandarin fish (Siniperca chuatsi)

文献类型： 外文期刊

作者： Zhu, Chuan-Zhong 1 ; Li, Dong 2 ; Chen, Wei-Jun 2 ; Ban, Sai-Nan 2 ; Liu, Tao 2 ; Wen, Hua 1 ; Jiang, Ming 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan, Peoples R China

2.Fujian DBN Aquat Sci & Technol Grp CO LTD, Fujian Key Lab Funct Aquafeed & Culture Environm, Zhao An, Peoples R China

3.Beijing DBN Technol Grp Co Ltd, Beijing, Peoples R China

关键词： Mandarin fish; Probiotics; Lactobacillus; Intestinal morphology; Intestinal microbiota

期刊名称：AQUACULTURE （ 影响因子：4.242； 五年影响因子：4.723 ）

ISSN： 0044-8486

年卷期： 2021 年 540 卷

页码：

收录情况： SCI

摘要： This study was conducted to evaluate the effects of dietary host-associated Lactococcus lactis 3-c-18 supplementation on the growth, serum biochemical indices, liver and intestine health, intestinal microbiota, and Aeromonas hydrophila resistance in mandarin fish (Siniperca chuatsi). Mandarin fish were fed with four experimental diets containing 0 CFU/kg(-1) (CR), 0.95 x 10(8) CFU/kg(-1) (R1), 0.86 x 10(9) CFU/kg(-1) (R2), and 0.91 x 10(10) CFU/kg(-1) (R-3) L. lactis 3-c-18 for ten weeks. The results showed that fish fed the R1 and R2 diets exhibited a higher percentage weight gain and lower feed conversion ratio than fish fed the CR and R3 diets. Serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activity were significantly decreased by dietary L. lactis 3-c-18 supplementation. Glucose (GLU), total cholesterol (TCHO) and malondialdehyde (MDA) levels were significantly depressed by the inclusion of L. lactis 3-c-18 in the diet, however, serum CAT levels were enhanced by L. lactis 3-c-18. The hepatic and intestinal morphology of mandarin fish fed L. lactis 3-c-18 was better than the control group and the relative abundances of Spirochaetes and Proteobacteria in the mid-gut were significantly increased by dietary L. lactis 3-c-18 supplementation. Meanwhile, Linear discriminant analysis Effect Size (LEfSe) analysis showed that L. lactis 3-c-18 increased the abundance of Lactococcus in the intestines of mandarin fish. The challenge test demonstrated that fish in groups fed with L. lactis 3-c-18 diets had a lower mortality rate compared to the control group. In conclusion, L. lactis 3-c-18 can have beneficial effects on growth performance, liver and gut health, A. hydrophila resistance, and intestinal microbial diversity of mandarin fish. However, high levels of L. lactis 3-c-18 in the diet may reduce these beneficial effects. Based on the results of the current study, the recommended dose of L. lactis 3-c-18 in mandarin fish feed is approximately 1 x 10(8) CFU/kg.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台