Effects of host-associated low-temperature probiotics in olive flounder (Paralichthys olivaceus) aquaculture.

ABSTRACT: This study investigated the effects of supplementation of low-temperature probiotics isolated from the intestines of olive flounder on the growth performance, digestibility, and regulation of intestinal microbiota and the expression of genes related to growth, immunity, and apoptosis in olive flounder. Bacteria showing high growth at approximately 15-20 °C, which is the temperature of olive flounder culture, were isolated and confirmed to be Pseudomonas species through 16S rRNA gene sequence analysis. Whole-genome sequencing revealed that the strain has a 6,195,122 bp single circular chromosome and a guanine-cytosine content of 59.9%. In the feeding trial, supplementation with 1 × 10⁸ CFU/g of the isolate strain positively modulated growth performances, digestive enzyme activity

SUBMITTER: Lee SJ 

PROVIDER: S-EPMC10810782 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature