Changes in the intestinal microbiota of farmed northern sheatfish (Silurus soldatovi) associated with natural bacterial infection

Autor: Zhongjie Zan, Qing Mao, Zhuoran Han, Jingfeng Sun
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Journal of the World Aquaculture Society, Vol 54, Iss 6, Pp 1575-1591 (2023)
Druh dokumentu: article
ISSN: 1749-7345
0893-8849
DOI: 10.1111/jwas.13000
Popis: Abstract An acute infectious disease of northern sheatfish (Silurus soldatovi) was found in a commercial aquaculture pond in Tianjin, China. Herein, two dominant bacterial strains were isolated from naturally diseased northern sheatfish and identified as Aeromonas veronii and Vibrio cholerae. Seven healthy and seven naturally diseased fish that were collected from the pond were used for the gut microbiota analysis by high‐throughput 16S rRNA gene sequencing. The α‐diversity indices (ACE, Chao 1, and Shannon) did not differ significantly between diseased and healthy fish (p > 0.05), but a significant separation was observed between them when β‐diversity analysis of the bacterial population was performed. The diseased fish demonstrated a significant elevation in the relative abundances of Aeromonas, Vibrio, Blautia, and Megamonas and a decrease in Cetobacterium, Bacteroides, Chryseolinea, Ralstonia, and Pseudomonas compared with healthy fish (p
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