Pubblicazione scientifica

Lactobacillus Dominate in the Intestine of Atlantic Salmon Fed Dietary Probiotics

FILONE TECNOLOGICO	TEMA
trasformazione e commercializzazione

RIASSUNTO

Probiotics, the live microbial strains incorporated as dietary supplements, are known to provide health benefits to the host. These live microbes manipulate the gut microbial community by suppressing the growth of certain intestinal microbes while enhancing the establishment of some others. Lactic acid bacteria (LAB) have been widely studied as probiotics; in this study we have elucidated the effects of two fish-derived LAB types (RII and RIII) on the distal intestinal microbial communities of Atlantic salmon (Salmo salar). We employed high-throughput 16S rRNA gene amplicon sequencing to investigate the bacterial communities in the distal intestinal content and mucus of Atlantic salmon fed diets coated with the LABs or that did not have microbes included in it. Our results show that the supplementation of the microbes shifts the intestinal microbial profile differentially. LAB supplementation did not cause any significant alterations in the alpha diversity of the intestinal content bacteria but RIII feeding increased the bacterial diversity in the intestinal mucus of the fish. Beta diversity analysis revealed significant differences between the bacterial compositions of the control and LAB-fed groups. Lactobacillus was the dominant genus in LAB-fed fish. A few members of the phyla Tenericutes, Proteobacteria, Actinobacteria, and Spirochaetes were also found to be abundant in the LAB-fed groups. Furthermore, the bacterial association network analysis showed that the co-occurrence pattern of bacteria of the three study groups were different. Dietary probiotics can modulate the composition and interaction of the intestinal microbiota of Atlantic salmon.

DATA

Data di pubblicazione: 11/01/2019

AUTORI

GUPTA SHRUTI
FECKANINOVA ADRIANA
LOKESH JEP
KOSCOVA JANA
SORENSEN METTE
FERNANDES JORGE
KIRON VISWANATH

ENTE DI AFFERENZA

FACULTY OF BIOSCIENCES & AQUACULTURE NORD UNIV BOD NORWAY
DEPARTMENT OF FOOD HYGIENE AND TECHNOLOGY UNIVERSITY OF VETERINARY MEDICINE AND PHARMACY IN KOSICE KOSICE SLOVAKIA
DEPARTMENT OF MICROBIOLOGY AND IMMUNOLOGY THE UNIVERSITY OF VETERINARY MEDICINE AND PHARMACY IN KOSICE KOSICE SLOVAKIA

RIVISTA

Frontiers in Microbiology, 9, 3247

IMPACT FACTOR

4,190

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