Characteristics and differences in immune response capacity and gut microbiome between wild and captive Amur grayling (<i>Thymallus grubii</i>): New insights into endangered fish conservation.

ABSTRACT:

Introduction

Endangered species recovery hinges on evaluating captivity-induced shifts in the adaptive traits of candidates slated for reintroduction. Gut microbiota is one such trait and is particularly important for Amur grayling (Thymallus grubii).

Methods

The present study aimed to systematically investigate the differences in intestinal and liver health in Amur grayling from two water environments (wild and captive) by feeding habits, biochemical parameters and 16S ribosomal RNA gene sequencing.

Results

Compared with captive fish, the wild Amur grayling in the liver and gut had higher lysozyme activity (P < 0.05), and alkaline phosphatase, catalase activity and glutathione content in gut was significantly higher (P < 0.05). In addition, the c

SUBMITTER: Zhai C 

PROVIDER: S-EPMC12672233 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature