Effects of dietary Silphium perfoliatum L. on the growth performance, immunity, intestinal health, and resistance against Nocardia seriolae of largemouth bass (Micropterus salmoides)

Hao Tang; Hao Tang; Hao Tang; Sheng Luo; Sheng Luo; Sheng Luo; Jifeng Chen; Qianjin Zhou; Qianjin Zhou; Qianjin Zhou; Guanjun Yang; Guanjun Yang; Guanjun Yang; Jianfei Lu; Jianfei Lu; Jianfei Lu; Jiong Chen; Jiong Chen; Jiong Chen

doi:10.3389/fmars.2024.1432379

Frontiers in Marine Science (Jul 2024)

Effects of dietary Silphium perfoliatum L. on the growth performance, immunity, intestinal health, and resistance against Nocardia seriolae of largemouth bass (Micropterus salmoides)

Hao Tang,
Hao Tang,
Hao Tang,
Sheng Luo,
Sheng Luo,
Sheng Luo,
Jifeng Chen,
Qianjin Zhou,
Qianjin Zhou,
Qianjin Zhou,
Guanjun Yang,
Guanjun Yang,
Guanjun Yang,
Jianfei Lu,
Jianfei Lu,
Jianfei Lu,
Jiong Chen,
Jiong Chen,
Jiong Chen

Affiliations

Hao Tang: State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, China
Hao Tang: Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, China
Hao Tang: Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, China
Sheng Luo: State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, China
Sheng Luo: Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, China
Sheng Luo: Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, China
Jifeng Chen: Nanjing Silphium Biotechnology Company Limited, Nanjing, China
Qianjin Zhou: State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, China
Qianjin Zhou: Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, China
Qianjin Zhou: Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, China
Guanjun Yang: State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, China
Guanjun Yang: Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, China
Guanjun Yang: Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, China
Jianfei Lu: State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, China
Jianfei Lu: Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, China
Jianfei Lu: Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, China
Jiong Chen: State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo, China
Jiong Chen: Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, China
Jiong Chen: Key Laboratory of Applied Marine Biotechnology of Ministry of Education, Ningbo University, Ningbo, China

DOI: https://doi.org/10.3389/fmars.2024.1432379
Journal volume & issue: Vol. 11

Abstract

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The present study was conducted to evaluate the effect of dietary Silphium perfoliatum L. on growth performance, immunity, intestinal health, and resistance against Nocardia seriolae of largemouth bass. Four dietary concentrations of S. perfoliatum L. were prepared: 0% (SPL0), 1% (SPL1), 2.5% (SPL2.5), and 5% (SPL5). After 60 d feeding, a challenge test was conducted by injecting N. seriolae intraperitoneally. The results showed that supplementing the diets with S. perfoliatum L. could promote the weight gain rate, specific growth rate, and feed intake. Meantime, S. perfoliatum L. could also enhance the activity of immune-related enzymes and improve the expression of immune-related genes in the liver. Compared to the control group, S. perfoliatum L. improved intestinal morphology and reduced the abundance of harmful bacteria in intestinal microbiota. Importantly, supplementing the diets with S. perfoliatum L. protected largemouth bass from N. seriolae infection, resulting in a relative percent survival (RPS) of 24% (SPL1), 31.99% (SPL2.5), and 43.99% (SPL5). In conclusion, the present study showed that S. perfoliatum L. could boost growth performance, enhance immunity, promote intestinal health, and improve the ability of largemouth bass against N. seriolae infection.

Published in Frontiers in Marine Science

ISSN: 2296-7745 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Natural history (General): General. Including nature conservation, geographical distribution
Website: https://www.frontiersin.org/journals/marine-science

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