Characteristics and Functions of Different Intestinal Segments in Juvenile Greater Amberjack (<i>Seriola dumerili</i>).

ABSTRACT: The greater amberjack (Seriola dumerili), a key species in marine aquaculture, relies heavily on its intestine for nutrient absorption and immune function. However, the structural and functional specialization of its intestinal segments remains poorly understood. In this study, we divided the intestine of S. dumerili into foregut, midgut, and hindgut, and conducted a multi-omics analysis integrating histological staining (H&E/AB-PAS), digestive enzyme assays, transcriptome sequencing, and 16S rRNA microbiota profiling to characterize structural, functional, molecular, and microbial differences across intestinal segments. Histological examinations revealed that brush border microvillus length, muscle layer thickness, and folding height were significantly greater in the foregut

SUBMITTER: Zhu K 

PROVIDER: S-EPMC12153913 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature